Index: django/test/simple.py
===================================================================
--- django/test/simple.py	(.../trunk)	(revision 13428)
+++ django/test/simple.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -1,12 +1,12 @@
 import sys
 import signal
-import unittest
 
 from django.conf import settings
 from django.db.models import get_app, get_apps
 from django.test import _doctest as doctest
 from django.test.utils import setup_test_environment, teardown_test_environment
 from django.test.testcases import OutputChecker, DocTestRunner, TestCase
+from django.utils import unittest
 
 # The module name for tests outside models.py
 TEST_MODULE = 'tests'
Index: django/test/testcases.py
===================================================================
--- django/test/testcases.py	(.../trunk)	(revision 13428)
+++ django/test/testcases.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -1,5 +1,4 @@
 import re
-import unittest
 from urlparse import urlsplit, urlunsplit
 from xml.dom.minidom import parseString, Node
 
@@ -11,7 +10,7 @@
 from django.http import QueryDict
 from django.test import _doctest as doctest
 from django.test.client import Client
-from django.utils import simplejson
+from django.utils import simplejson, unittest
 from django.utils.encoding import smart_str
 
 try:
Index: django/test/__init__.py
===================================================================
--- django/test/__init__.py	(.../trunk)	(revision 13428)
+++ django/test/__init__.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -4,3 +4,4 @@
 
 from django.test.client import Client
 from django.test.testcases import TestCase, TransactionTestCase
+from django.test.utils import skipIfDBEngine
Index: django/test/utils.py
===================================================================
--- django/test/utils.py	(.../trunk)	(revision 13428)
+++ django/test/utils.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -2,9 +2,11 @@
 from django.conf import settings
 from django.core import mail
 from django.core.mail.backends import locmem
+from django.db import DEFAULT_DB_ALIAS
 from django.test import signals
 from django.template import Template
 from django.utils.translation import deactivate
+from django.utils.unittest import skipIf
 
 class ContextList(list):
     """A wrapper that provides direct key access to context items contained
@@ -77,3 +79,16 @@
     test_module = __import__(test_module_name, {}, {}, test_path[-1])
     test_runner = getattr(test_module, test_path[-1])
     return test_runner
+
+def skipIfDBEngine(engine, reason=None):
+    """
+    Decorator to skip tests on a given database engine.
+
+    Note that you can pass a single engine or an iterable here
+    """
+    if not reason:
+        reason = "not supported on this database"
+    settings_engine = settings.DATABASES[DEFAULT_DB_ALIAS]['ENGINE']
+    if isinstance(engine, basestring):
+        return skipIf(settings_engine == engine, reason)
+    return skipIf(settings_engine in engine, reason)
Index: django/utils/unittest/compatibility.py
===================================================================
--- django/utils/unittest/compatibility.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/compatibility.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,64 @@
+import os
+import sys
+
+try:
+    from functools import wraps
+except ImportError:
+    # only needed for Python 2.4
+    def wraps(_):
+        def _wraps(func):
+            return func
+        return _wraps
+
+__unittest = True
+
+def _relpath_nt(path, start=os.path.curdir):
+    """Return a relative version of a path"""
+
+    if not path:
+        raise ValueError("no path specified")
+    start_list = os.path.abspath(start).split(os.path.sep)
+    path_list = os.path.abspath(path).split(os.path.sep)
+    if start_list[0].lower() != path_list[0].lower():
+        unc_path, rest = os.path.splitunc(path)
+        unc_start, rest = os.path.splitunc(start)
+        if bool(unc_path) ^ bool(unc_start):
+            raise ValueError("Cannot mix UNC and non-UNC paths (%s and %s)"
+                                                                % (path, start))
+        else:
+            raise ValueError("path is on drive %s, start on drive %s"
+                                                % (path_list[0], start_list[0]))
+    # Work out how much of the filepath is shared by start and path.
+    for i in range(min(len(start_list), len(path_list))):
+        if start_list[i].lower() != path_list[i].lower():
+            break
+    else:
+        i += 1
+
+    rel_list = [os.path.pardir] * (len(start_list)-i) + path_list[i:]
+    if not rel_list:
+        return os.path.curdir
+    return os.path.join(*rel_list)
+
+# default to posixpath definition
+def _relpath_posix(path, start=os.path.curdir):
+    """Return a relative version of a path"""
+
+    if not path:
+        raise ValueError("no path specified")
+    
+    start_list = os.path.abspath(start).split(os.path.sep)
+    path_list = os.path.abspath(path).split(os.path.sep)
+
+    # Work out how much of the filepath is shared by start and path.
+    i = len(os.path.commonprefix([start_list, path_list]))
+
+    rel_list = [os.path.pardir] * (len(start_list)-i) + path_list[i:]
+    if not rel_list:
+        return os.path.curdir
+    return os.path.join(*rel_list)
+
+if os.path is sys.modules.get('ntpath'):
+    relpath = _relpath_nt
+else:
+    relpath = _relpath_posix
Index: django/utils/unittest/runner.py
===================================================================
--- django/utils/unittest/runner.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/runner.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,206 @@
+"""Running tests"""
+
+import sys
+import time
+import unittest
+
+from django.utils.unittest import result
+
+try:
+    from django.utils.unittest.signals import registerResult
+except ImportError:
+    def registerResult(_):
+        pass
+    
+__unittest = True
+
+
+class _WritelnDecorator(object):
+    """Used to decorate file-like objects with a handy 'writeln' method"""
+    def __init__(self,stream):
+        self.stream = stream
+
+    def __getattr__(self, attr):
+        if attr in ('stream', '__getstate__'):
+            raise AttributeError(attr)
+        return getattr(self.stream,attr)
+
+    def writeln(self, arg=None):
+        if arg:
+            self.write(arg)
+        self.write('\n') # text-mode streams translate to \r\n if needed
+
+
+class TextTestResult(result.TestResult):
+    """A test result class that can print formatted text results to a stream.
+
+    Used by TextTestRunner.
+    """
+    separator1 = '=' * 70
+    separator2 = '-' * 70
+
+    def __init__(self, stream, descriptions, verbosity):
+        super(TextTestResult, self).__init__()
+        self.stream = stream
+        self.showAll = verbosity > 1
+        self.dots = verbosity == 1
+        self.descriptions = descriptions
+
+    def getDescription(self, test):
+        doc_first_line = test.shortDescription()
+        if self.descriptions and doc_first_line:
+            return '\n'.join((str(test), doc_first_line))
+        else:
+            return str(test)
+
+    def startTest(self, test):
+        super(TextTestResult, self).startTest(test)
+        if self.showAll:
+            self.stream.write(self.getDescription(test))
+            self.stream.write(" ... ")
+            self.stream.flush()
+
+    def addSuccess(self, test):
+        super(TextTestResult, self).addSuccess(test)
+        if self.showAll:
+            self.stream.writeln("ok")
+        elif self.dots:
+            self.stream.write('.')
+            self.stream.flush()
+
+    def addError(self, test, err):
+        super(TextTestResult, self).addError(test, err)
+        if self.showAll:
+            self.stream.writeln("ERROR")
+        elif self.dots:
+            self.stream.write('E')
+            self.stream.flush()
+
+    def addFailure(self, test, err):
+        super(TextTestResult, self).addFailure(test, err)
+        if self.showAll:
+            self.stream.writeln("FAIL")
+        elif self.dots:
+            self.stream.write('F')
+            self.stream.flush()
+
+    def addSkip(self, test, reason):
+        super(TextTestResult, self).addSkip(test, reason)
+        if self.showAll:
+            self.stream.writeln("skipped %r" % (reason,))
+        elif self.dots:
+            self.stream.write("s")
+            self.stream.flush()
+
+    def addExpectedFailure(self, test, err):
+        super(TextTestResult, self).addExpectedFailure(test, err)
+        if self.showAll:
+            self.stream.writeln("expected failure")
+        elif self.dots:
+            self.stream.write("x")
+            self.stream.flush()
+
+    def addUnexpectedSuccess(self, test):
+        super(TextTestResult, self).addUnexpectedSuccess(test)
+        if self.showAll:
+            self.stream.writeln("unexpected success")
+        elif self.dots:
+            self.stream.write("u")
+            self.stream.flush()
+
+    def printErrors(self):
+        if self.dots or self.showAll:
+            self.stream.writeln()
+        self.printErrorList('ERROR', self.errors)
+        self.printErrorList('FAIL', self.failures)
+
+    def printErrorList(self, flavour, errors):
+        for test, err in errors:
+            self.stream.writeln(self.separator1)
+            self.stream.writeln("%s: %s" % (flavour, self.getDescription(test)))
+            self.stream.writeln(self.separator2)
+            self.stream.writeln("%s" % err)
+
+    def stopTestRun(self):
+        super(TextTestResult, self).stopTestRun()
+        self.printErrors()
+
+
+class TextTestRunner(unittest.TextTestRunner):
+    """A test runner class that displays results in textual form.
+
+    It prints out the names of tests as they are run, errors as they
+    occur, and a summary of the results at the end of the test run.
+    """
+    resultclass = TextTestResult
+
+    def __init__(self, stream=sys.stderr, descriptions=True, verbosity=1,
+                    failfast=False, buffer=False, resultclass=None):
+        self.stream = _WritelnDecorator(stream)
+        self.descriptions = descriptions
+        self.verbosity = verbosity
+        self.failfast = failfast
+        self.buffer = buffer
+        if resultclass is not None:
+            self.resultclass = resultclass
+
+    def _makeResult(self):
+        return self.resultclass(self.stream, self.descriptions, self.verbosity)
+
+    def run(self, test):
+        "Run the given test case or test suite."
+        result = self._makeResult()
+        result.failfast = self.failfast
+        result.buffer = self.buffer
+        registerResult(result)
+        
+        startTime = time.time()
+        startTestRun = getattr(result, 'startTestRun', None)
+        if startTestRun is not None:
+            startTestRun()
+        try:
+            test(result)
+        finally:
+            stopTestRun = getattr(result, 'stopTestRun', None)
+            if stopTestRun is not None:
+                stopTestRun()
+            else:
+                result.printErrors()
+        stopTime = time.time()
+        timeTaken = stopTime - startTime
+        if hasattr(result, 'separator2'):
+            self.stream.writeln(result.separator2)
+        run = result.testsRun
+        self.stream.writeln("Ran %d test%s in %.3fs" %
+                            (run, run != 1 and "s" or "", timeTaken))
+        self.stream.writeln()
+        
+        expectedFails = unexpectedSuccesses = skipped = 0
+        try:
+            results = map(len, (result.expectedFailures,
+                                result.unexpectedSuccesses,
+                                result.skipped))
+            expectedFails, unexpectedSuccesses, skipped = results
+        except AttributeError:
+            pass
+        infos = []
+        if not result.wasSuccessful():
+            self.stream.write("FAILED")
+            failed, errored = map(len, (result.failures, result.errors))
+            if failed:
+                infos.append("failures=%d" % failed)
+            if errored:
+                infos.append("errors=%d" % errored)
+        else:
+            self.stream.write("OK")
+        if skipped:
+            infos.append("skipped=%d" % skipped)
+        if expectedFails:
+            infos.append("expected failures=%d" % expectedFails)
+        if unexpectedSuccesses:
+            infos.append("unexpected successes=%d" % unexpectedSuccesses)
+        if infos:
+            self.stream.writeln(" (%s)" % (", ".join(infos),))
+        else:
+            self.stream.write("\n")
+        return result
Index: django/utils/unittest/suite.py
===================================================================
--- django/utils/unittest/suite.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/suite.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,287 @@
+"""TestSuite"""
+
+import sys
+import unittest
+from django.utils.unittest import case, util
+
+__unittest = True
+
+
+class BaseTestSuite(unittest.TestSuite):
+    """A simple test suite that doesn't provide class or module shared fixtures.
+    """
+    def __init__(self, tests=()):
+        self._tests = []
+        self.addTests(tests)
+
+    def __repr__(self):
+        return "<%s tests=%s>" % (util.strclass(self.__class__), list(self))
+
+    def __eq__(self, other):
+        if not isinstance(other, self.__class__):
+            return NotImplemented
+        return list(self) == list(other)
+
+    def __ne__(self, other):
+        return not self == other
+
+    # Can't guarantee hash invariant, so flag as unhashable
+    __hash__ = None
+
+    def __iter__(self):
+        return iter(self._tests)
+
+    def countTestCases(self):
+        cases = 0
+        for test in self:
+            cases += test.countTestCases()
+        return cases
+
+    def addTest(self, test):
+        # sanity checks
+        if not hasattr(test, '__call__'):
+            raise TypeError("%r is not callable" % (repr(test),))
+        if isinstance(test, type) and issubclass(test,
+                                                 (case.TestCase, TestSuite)):
+            raise TypeError("TestCases and TestSuites must be instantiated "
+                            "before passing them to addTest()")
+        self._tests.append(test)
+
+    def addTests(self, tests):
+        if isinstance(tests, basestring):
+            raise TypeError("tests must be an iterable of tests, not a string")
+        for test in tests:
+            self.addTest(test)
+
+    def run(self, result):
+        for test in self:
+            if result.shouldStop:
+                break
+            test(result)
+        return result
+
+    def __call__(self, *args, **kwds):
+        return self.run(*args, **kwds)
+
+    def debug(self):
+        """Run the tests without collecting errors in a TestResult"""
+        for test in self:
+            test.debug()
+
+
+class TestSuite(BaseTestSuite):
+    """A test suite is a composite test consisting of a number of TestCases.
+
+    For use, create an instance of TestSuite, then add test case instances.
+    When all tests have been added, the suite can be passed to a test
+    runner, such as TextTestRunner. It will run the individual test cases
+    in the order in which they were added, aggregating the results. When
+    subclassing, do not forget to call the base class constructor.
+    """
+    
+
+    def run(self, result):
+        self._wrapped_run(result)
+        self._tearDownPreviousClass(None, result)
+        self._handleModuleTearDown(result)
+        return result
+
+    def debug(self):
+        """Run the tests without collecting errors in a TestResult"""
+        debug = _DebugResult()
+        self._wrapped_run(debug, True)
+        self._tearDownPreviousClass(None, debug)
+        self._handleModuleTearDown(debug)
+
+    ################################
+    # private methods
+    def _wrapped_run(self, result, debug=False):
+        for test in self:
+            if result.shouldStop:
+                break
+            
+            if _isnotsuite(test):
+                self._tearDownPreviousClass(test, result)
+                self._handleModuleFixture(test, result)
+                self._handleClassSetUp(test, result)
+                result._previousTestClass = test.__class__
+                
+                if (getattr(test.__class__, '_classSetupFailed', False) or 
+                    getattr(result, '_moduleSetUpFailed', False)):
+                    continue
+            
+            if hasattr(test, '_wrapped_run'):
+                test._wrapped_run(result, debug)
+            elif not debug:
+                test(result)
+            else:
+                test.debug()
+    
+    def _handleClassSetUp(self, test, result):
+        previousClass = getattr(result, '_previousTestClass', None)
+        currentClass = test.__class__
+        if currentClass == previousClass:
+            return
+        if result._moduleSetUpFailed:
+            return
+        if getattr(currentClass, "__unittest_skip__", False):
+            return
+        
+        try:
+            currentClass._classSetupFailed = False
+        except TypeError:
+            # test may actually be a function
+            # so its class will be a builtin-type
+            pass
+            
+        setUpClass = getattr(currentClass, 'setUpClass', None)
+        if setUpClass is not None:
+            try:
+                setUpClass()
+            except Exception, e:
+                if isinstance(result, _DebugResult):
+                    raise
+                currentClass._classSetupFailed = True
+                className = util.strclass(currentClass)
+                errorName = 'setUpClass (%s)' % className
+                self._addClassOrModuleLevelException(result, e, errorName)
+    
+    def _get_previous_module(self, result):
+        previousModule = None
+        previousClass = getattr(result, '_previousTestClass', None)
+        if previousClass is not None:
+            previousModule = previousClass.__module__
+        return previousModule
+        
+        
+    def _handleModuleFixture(self, test, result):
+        previousModule = self._get_previous_module(result)
+        currentModule = test.__class__.__module__
+        if currentModule == previousModule:
+            return
+        
+        self._handleModuleTearDown(result)
+
+        
+        result._moduleSetUpFailed = False
+        try:
+            module = sys.modules[currentModule]
+        except KeyError:
+            return
+        setUpModule = getattr(module, 'setUpModule', None)
+        if setUpModule is not None:
+            try:
+                setUpModule()
+            except Exception, e:
+                if isinstance(result, _DebugResult):
+                    raise
+                result._moduleSetUpFailed = True
+                errorName = 'setUpModule (%s)' % currentModule
+                self._addClassOrModuleLevelException(result, e, errorName)
+
+    def _addClassOrModuleLevelException(self, result, exception, errorName):
+        error = _ErrorHolder(errorName)
+        addSkip = getattr(result, 'addSkip', None)
+        if addSkip is not None and isinstance(exception, case.SkipTest):
+            addSkip(error, str(exception))
+        else:
+            result.addError(error, sys.exc_info())
+    
+    def _handleModuleTearDown(self, result):
+        previousModule = self._get_previous_module(result)
+        if previousModule is None:
+            return
+        if result._moduleSetUpFailed:
+            return
+            
+        try:
+            module = sys.modules[previousModule]
+        except KeyError:
+            return
+
+        tearDownModule = getattr(module, 'tearDownModule', None)
+        if tearDownModule is not None:
+            try:
+                tearDownModule()
+            except Exception, e:
+                if isinstance(result, _DebugResult):
+                    raise
+                errorName = 'tearDownModule (%s)' % previousModule
+                self._addClassOrModuleLevelException(result, e, errorName)
+    
+    def _tearDownPreviousClass(self, test, result):
+        previousClass = getattr(result, '_previousTestClass', None)
+        currentClass = test.__class__
+        if currentClass == previousClass:
+            return
+        if getattr(previousClass, '_classSetupFailed', False):
+            return
+        if getattr(result, '_moduleSetUpFailed', False):
+            return
+        if getattr(previousClass, "__unittest_skip__", False):
+            return
+        
+        tearDownClass = getattr(previousClass, 'tearDownClass', None)
+        if tearDownClass is not None:
+            try:
+                tearDownClass()
+            except Exception, e:
+                if isinstance(result, _DebugResult):
+                    raise
+                className = util.strclass(previousClass)
+                errorName = 'tearDownClass (%s)' % className
+                self._addClassOrModuleLevelException(result, e, errorName)
+
+
+class _ErrorHolder(object):
+    """
+    Placeholder for a TestCase inside a result. As far as a TestResult
+    is concerned, this looks exactly like a unit test. Used to insert
+    arbitrary errors into a test suite run.
+    """
+    # Inspired by the ErrorHolder from Twisted:
+    # http://twistedmatrix.com/trac/browser/trunk/twisted/trial/runner.py
+
+    # attribute used by TestResult._exc_info_to_string
+    failureException = None
+
+    def __init__(self, description):
+        self.description = description
+
+    def id(self):
+        return self.description
+
+    def shortDescription(self):
+        return None
+
+    def __repr__(self):
+        return "<ErrorHolder description=%r>" % (self.description,)
+
+    def __str__(self):
+        return self.id()
+
+    def run(self, result):
+        # could call result.addError(...) - but this test-like object
+        # shouldn't be run anyway
+        pass
+
+    def __call__(self, result):
+        return self.run(result)
+
+    def countTestCases(self):
+        return 0
+
+def _isnotsuite(test):
+    "A crude way to tell apart testcases and suites with duck-typing"
+    try:
+        iter(test)
+    except TypeError:
+        return True
+    return False
+
+
+class _DebugResult(object):
+    "Used by the TestSuite to hold previous class when running in debug."
+    _previousTestClass = None
+    _moduleSetUpFailed = False
+    shouldStop = False
Index: django/utils/unittest/case.py
===================================================================
--- django/utils/unittest/case.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/case.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,1095 @@
+"""Test case implementation"""
+
+import sys
+import difflib
+import pprint
+import re
+import unittest
+import warnings
+
+if sys.version_info[:2] == (2,3):
+    from sets import Set as set
+    from sets import ImmutableSet as frozenset
+
+from django.utils.unittest import result
+from django.utils.unittest.util import\
+    safe_repr, safe_str, strclass,\
+    unorderable_list_difference
+
+from django.utils.unittest.compatibility import wraps
+
+__unittest = True
+
+
+DIFF_OMITTED = ('\nDiff is %s characters long. '
+                 'Set self.maxDiff to None to see it.')
+
+class SkipTest(Exception):
+    """
+    Raise this exception in a test to skip it.
+
+    Usually you can use TestResult.skip() or one of the skipping decorators
+    instead of raising this directly.
+    """
+
+class _ExpectedFailure(Exception):
+    """
+    Raise this when a test is expected to fail.
+
+    This is an implementation detail.
+    """
+
+    def __init__(self, exc_info):
+        # can't use super because Python 2.4 exceptions are old style
+        Exception.__init__(self)
+        self.exc_info = exc_info
+
+class _UnexpectedSuccess(Exception):
+    """
+    The test was supposed to fail, but it didn't!
+    """
+
+def _id(obj):
+    return obj
+
+def skip(reason):
+    """
+    Unconditionally skip a test.
+    """
+    def decorator(test_item):
+        if not (isinstance(test_item, type) and issubclass(test_item, TestCase)):
+            def skip_wrapper(*args, **kwargs):
+                raise SkipTest(reason)
+            skip_wrapper = wraps(test_item)(skip_wrapper)
+            test_item = skip_wrapper
+        
+        test_item.__unittest_skip__ = True
+        test_item.__unittest_skip_why__ = reason
+        return test_item
+    return decorator
+
+def skipIf(condition, reason):
+    """
+    Skip a test if the condition is true.
+    """
+    if condition:
+        return skip(reason)
+    return _id
+
+def skipUnless(condition, reason):
+    """
+    Skip a test unless the condition is true.
+    """
+    if not condition:
+        return skip(reason)
+    return _id
+
+
+def expectedFailure(func):
+    def wrapper(*args, **kwargs):
+        try:
+            func(*args, **kwargs)
+        except Exception:
+            raise _ExpectedFailure(sys.exc_info())
+        raise _UnexpectedSuccess
+    wrapper = wraps(func)(wrapper)
+    return wrapper
+
+
+class _AssertRaisesContext(object):
+    """A context manager used to implement TestCase.assertRaises* methods."""
+
+    def __init__(self, expected, test_case, expected_regexp=None):
+        self.expected = expected
+        self.failureException = test_case.failureException
+        self.expected_regexp = expected_regexp
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_value, tb):
+        if exc_type is None:
+            try:
+                exc_name = self.expected.__name__
+            except AttributeError:
+                exc_name = str(self.expected)
+            raise self.failureException(
+                "%s not raised" % (exc_name,))
+        if not issubclass(exc_type, self.expected):
+            # let unexpected exceptions pass through
+            return False
+        self.exception = exc_value # store for later retrieval
+        if self.expected_regexp is None:
+            return True
+
+        expected_regexp = self.expected_regexp
+        if isinstance(expected_regexp, basestring):
+            expected_regexp = re.compile(expected_regexp)
+        if not expected_regexp.search(str(exc_value)):
+            raise self.failureException('"%s" does not match "%s"' %
+                     (expected_regexp.pattern, str(exc_value)))
+        return True
+
+
+class _TypeEqualityDict(object):
+    
+    def __init__(self, testcase):
+        self.testcase = testcase
+        self._store = {}
+    
+    def __setitem__(self, key, value):
+        self._store[key] = value
+    
+    def __getitem__(self, key):
+        value = self._store[key]
+        if isinstance(value, basestring):
+            return getattr(self.testcase, value)
+        return value
+    
+    def get(self, key, default=None):
+        if key in self._store:
+            return self[key]
+        return default
+
+
+class TestCase(unittest.TestCase):
+    """A class whose instances are single test cases.
+
+    By default, the test code itself should be placed in a method named
+    'runTest'.
+
+    If the fixture may be used for many test cases, create as
+    many test methods as are needed. When instantiating such a TestCase
+    subclass, specify in the constructor arguments the name of the test method
+    that the instance is to execute.
+
+    Test authors should subclass TestCase for their own tests. Construction
+    and deconstruction of the test's environment ('fixture') can be
+    implemented by overriding the 'setUp' and 'tearDown' methods respectively.
+
+    If it is necessary to override the __init__ method, the base class
+    __init__ method must always be called. It is important that subclasses
+    should not change the signature of their __init__ method, since instances
+    of the classes are instantiated automatically by parts of the framework
+    in order to be run.
+    """
+
+    # This attribute determines which exception will be raised when
+    # the instance's assertion methods fail; test methods raising this
+    # exception will be deemed to have 'failed' rather than 'errored'
+
+    failureException = AssertionError
+
+    # This attribute sets the maximum length of a diff in failure messages
+    # by assert methods using difflib. It is looked up as an instance attribute
+    # so can be configured by individual tests if required.
+
+    maxDiff = 80*8
+
+    # This attribute determines whether long messages (including repr of
+    # objects used in assert methods) will be printed on failure in *addition*
+    # to any explicit message passed.
+
+    longMessage = True
+    
+    # Attribute used by TestSuite for classSetUp
+    
+    _classSetupFailed = False
+
+    def __init__(self, methodName='runTest'):
+        """Create an instance of the class that will use the named test
+           method when executed. Raises a ValueError if the instance does
+           not have a method with the specified name.
+        """
+        self._testMethodName = methodName
+        self._resultForDoCleanups = None
+        try:
+            testMethod = getattr(self, methodName)
+        except AttributeError:
+            raise ValueError("no such test method in %s: %s" % \
+                  (self.__class__, methodName))
+        self._testMethodDoc = testMethod.__doc__
+        self._cleanups = []
+
+        # Map types to custom assertEqual functions that will compare
+        # instances of said type in more detail to generate a more useful
+        # error message.
+        self._type_equality_funcs = _TypeEqualityDict(self)
+        self.addTypeEqualityFunc(dict, 'assertDictEqual')
+        self.addTypeEqualityFunc(list, 'assertListEqual')
+        self.addTypeEqualityFunc(tuple, 'assertTupleEqual')
+        self.addTypeEqualityFunc(set, 'assertSetEqual')
+        self.addTypeEqualityFunc(frozenset, 'assertSetEqual')
+        self.addTypeEqualityFunc(unicode, 'assertMultiLineEqual')
+
+    def addTypeEqualityFunc(self, typeobj, function):
+        """Add a type specific assertEqual style function to compare a type.
+
+        This method is for use by TestCase subclasses that need to register
+        their own type equality functions to provide nicer error messages.
+
+        Args:
+            typeobj: The data type to call this function on when both values
+                    are of the same type in assertEqual().
+            function: The callable taking two arguments and an optional
+                    msg= argument that raises self.failureException with a
+                    useful error message when the two arguments are not equal.
+        """
+        self._type_equality_funcs[typeobj] = function
+
+    def addCleanup(self, function, *args, **kwargs):
+        """Add a function, with arguments, to be called when the test is
+        completed. Functions added are called on a LIFO basis and are
+        called after tearDown on test failure or success.
+
+        Cleanup items are called even if setUp fails (unlike tearDown)."""
+        self._cleanups.append((function, args, kwargs))
+
+    def setUp(self):
+        "Hook method for setting up the test fixture before exercising it."
+    
+    def setUpClass(cls):
+        "Hook method for setting up class fixture before running tests in the class."
+    setUpClass = classmethod(setUpClass)
+    
+    def tearDownClass(cls):
+        "Hook method for deconstructing the class fixture after running all tests in the class."
+    tearDownClass = classmethod(tearDownClass)
+    
+    def tearDown(self):
+        "Hook method for deconstructing the test fixture after testing it."
+
+    def countTestCases(self):
+        return 1
+
+    def defaultTestResult(self):
+        return result.TestResult()
+
+    def shortDescription(self):
+        """Returns a one-line description of the test, or None if no
+        description has been provided.
+
+        The default implementation of this method returns the first line of
+        the specified test method's docstring.
+        """
+        doc = self._testMethodDoc
+        return doc and doc.split("\n")[0].strip() or None
+
+
+    def id(self):
+        return "%s.%s" % (strclass(self.__class__), self._testMethodName)
+
+    def __eq__(self, other):
+        if type(self) is not type(other):
+            return NotImplemented
+
+        return self._testMethodName == other._testMethodName
+
+    def __ne__(self, other):
+        return not self == other
+
+    def __hash__(self):
+        return hash((type(self), self._testMethodName))
+
+    def __str__(self):
+        return "%s (%s)" % (self._testMethodName, strclass(self.__class__))
+
+    def __repr__(self):
+        return "<%s testMethod=%s>" % \
+               (strclass(self.__class__), self._testMethodName)
+    
+    def _addSkip(self, result, reason):
+        addSkip = getattr(result, 'addSkip', None)
+        if addSkip is not None:
+            addSkip(self, reason)
+        else:
+            warnings.warn("Use of a TestResult without an addSkip method is deprecated", 
+                          DeprecationWarning, 2)
+            result.addSuccess(self)
+
+    def run(self, result=None):
+        orig_result = result
+        if result is None:
+            result = self.defaultTestResult()
+            startTestRun = getattr(result, 'startTestRun', None)
+            if startTestRun is not None:
+                startTestRun()
+
+        self._resultForDoCleanups = result
+        result.startTest(self)
+        
+        testMethod = getattr(self, self._testMethodName)
+        
+        if (getattr(self.__class__, "__unittest_skip__", False) or 
+            getattr(testMethod, "__unittest_skip__", False)):
+            # If the class or method was skipped.
+            try:
+                skip_why = (getattr(self.__class__, '__unittest_skip_why__', '')
+                            or getattr(testMethod, '__unittest_skip_why__', ''))
+                self._addSkip(result, skip_why)
+            finally:
+                result.stopTest(self)
+            return
+        try:
+            success = False
+            try:
+                self.setUp()
+            except SkipTest, e:
+                self._addSkip(result, str(e))
+            except Exception:
+                result.addError(self, sys.exc_info())
+            else:
+                try:
+                    testMethod()
+                except self.failureException:
+                    result.addFailure(self, sys.exc_info())
+                except _ExpectedFailure, e:
+                    addExpectedFailure = getattr(result, 'addExpectedFailure', None)
+                    if addExpectedFailure is not None:
+                        addExpectedFailure(self, e.exc_info)
+                    else: 
+                        warnings.warn("Use of a TestResult without an addExpectedFailure method is deprecated", 
+                                      DeprecationWarning)
+                        result.addSuccess(self)
+                except _UnexpectedSuccess:
+                    addUnexpectedSuccess = getattr(result, 'addUnexpectedSuccess', None)
+                    if addUnexpectedSuccess is not None:
+                        addUnexpectedSuccess(self)
+                    else:
+                        warnings.warn("Use of a TestResult without an addUnexpectedSuccess method is deprecated", 
+                                      DeprecationWarning)
+                        result.addFailure(self, sys.exc_info())
+                except SkipTest, e:
+                    self._addSkip(result, str(e))
+                except Exception:
+                    result.addError(self, sys.exc_info())
+                else:
+                    success = True
+
+                try:
+                    self.tearDown()
+                except Exception:
+                    result.addError(self, sys.exc_info())
+                    success = False
+
+            cleanUpSuccess = self.doCleanups()
+            success = success and cleanUpSuccess
+            if success:
+                result.addSuccess(self)
+        finally:
+            result.stopTest(self)
+            if orig_result is None:
+                stopTestRun = getattr(result, 'stopTestRun', None)
+                if stopTestRun is not None:
+                    stopTestRun()
+
+    def doCleanups(self):
+        """Execute all cleanup functions. Normally called for you after
+        tearDown."""
+        result = self._resultForDoCleanups
+        ok = True
+        while self._cleanups:
+            function, args, kwargs = self._cleanups.pop(-1)
+            try:
+                function(*args, **kwargs)
+            except Exception:
+                ok = False
+                result.addError(self, sys.exc_info())
+        return ok
+
+    def __call__(self, *args, **kwds):
+        return self.run(*args, **kwds)
+
+    def debug(self):
+        """Run the test without collecting errors in a TestResult"""
+        self.setUp()
+        getattr(self, self._testMethodName)()
+        self.tearDown()
+        while self._cleanups:
+            function, args, kwargs = self._cleanups.pop(-1)
+            function(*args, **kwargs)
+
+    def skipTest(self, reason):
+        """Skip this test."""
+        raise SkipTest(reason)
+
+    def fail(self, msg=None):
+        """Fail immediately, with the given message."""
+        raise self.failureException(msg)
+
+    def assertFalse(self, expr, msg=None):
+        "Fail the test if the expression is true."
+        if expr:
+            msg = self._formatMessage(msg, "%s is not False" % safe_repr(expr))
+            raise self.failureException(msg)
+
+    def assertTrue(self, expr, msg=None):
+        """Fail the test unless the expression is true."""
+        if not expr:
+            msg = self._formatMessage(msg, "%s is not True" % safe_repr(expr))
+            raise self.failureException(msg)
+
+    def _formatMessage(self, msg, standardMsg):
+        """Honour the longMessage attribute when generating failure messages.
+        If longMessage is False this means:
+        * Use only an explicit message if it is provided
+        * Otherwise use the standard message for the assert
+
+        If longMessage is True:
+        * Use the standard message
+        * If an explicit message is provided, plus ' : ' and the explicit message
+        """
+        if not self.longMessage:
+            return msg or standardMsg
+        if msg is None:
+            return standardMsg
+        try:
+            return '%s : %s' % (standardMsg, msg)
+        except UnicodeDecodeError:
+            return '%s : %s' % (safe_str(standardMsg), safe_str(msg))
+
+
+    def assertRaises(self, excClass, callableObj=None, *args, **kwargs):
+        """Fail unless an exception of class excClass is thrown
+           by callableObj when invoked with arguments args and keyword
+           arguments kwargs. If a different type of exception is
+           thrown, it will not be caught, and the test case will be
+           deemed to have suffered an error, exactly as for an
+           unexpected exception.
+
+           If called with callableObj omitted or None, will return a
+           context object used like this::
+
+                with self.assertRaises(SomeException):
+                    do_something()
+
+           The context manager keeps a reference to the exception as
+           the 'exception' attribute. This allows you to inspect the
+           exception after the assertion::
+
+               with self.assertRaises(SomeException) as cm:
+                   do_something()
+               the_exception = cm.exception
+               self.assertEqual(the_exception.error_code, 3)
+        """
+        if callableObj is None:
+            return _AssertRaisesContext(excClass, self)
+        try:
+            callableObj(*args, **kwargs)
+        except excClass:
+            return
+        
+        if hasattr(excClass,'__name__'):
+            excName = excClass.__name__
+        else:
+            excName = str(excClass)
+        raise self.failureException, "%s not raised" % excName
+
+    def _getAssertEqualityFunc(self, first, second):
+        """Get a detailed comparison function for the types of the two args.
+
+        Returns: A callable accepting (first, second, msg=None) that will
+        raise a failure exception if first != second with a useful human
+        readable error message for those types.
+        """
+        #
+        # NOTE(gregory.p.smith): I considered isinstance(first, type(second))
+        # and vice versa.  I opted for the conservative approach in case
+        # subclasses are not intended to be compared in detail to their super
+        # class instances using a type equality func.  This means testing
+        # subtypes won't automagically use the detailed comparison.  Callers
+        # should use their type specific assertSpamEqual method to compare
+        # subclasses if the detailed comparison is desired and appropriate.
+        # See the discussion in http://bugs.python.org/issue2578.
+        #
+        if type(first) is type(second):
+            asserter = self._type_equality_funcs.get(type(first))
+            if asserter is not None:
+                return asserter
+
+        return self._baseAssertEqual
+
+    def _baseAssertEqual(self, first, second, msg=None):
+        """The default assertEqual implementation, not type specific."""
+        if not first == second:
+            standardMsg = '%s != %s' % (safe_repr(first), safe_repr(second))
+            msg = self._formatMessage(msg, standardMsg)
+            raise self.failureException(msg)
+
+    def assertEqual(self, first, second, msg=None):
+        """Fail if the two objects are unequal as determined by the '=='
+           operator.
+        """
+        assertion_func = self._getAssertEqualityFunc(first, second)
+        assertion_func(first, second, msg=msg)
+
+    def assertNotEqual(self, first, second, msg=None):
+        """Fail if the two objects are equal as determined by the '=='
+           operator.
+        """
+        if not first != second:
+            msg = self._formatMessage(msg, '%s == %s' % (safe_repr(first), 
+                                                           safe_repr(second)))
+            raise self.failureException(msg)
+
+    def assertAlmostEqual(self, first, second, places=None, msg=None, delta=None):
+        """Fail if the two objects are unequal as determined by their
+           difference rounded to the given number of decimal places
+           (default 7) and comparing to zero, or by comparing that the
+           between the two objects is more than the given delta.
+
+           Note that decimal places (from zero) are usually not the same
+           as significant digits (measured from the most signficant digit).
+
+           If the two objects compare equal then they will automatically
+           compare almost equal.
+        """
+        if first == second:
+            # shortcut
+            return
+        if delta is not None and places is not None:
+            raise TypeError("specify delta or places not both")
+        
+        if delta is not None:
+            if abs(first - second) <= delta:
+                return
+        
+            standardMsg = '%s != %s within %s delta' % (safe_repr(first), 
+                                                        safe_repr(second), 
+                                                        safe_repr(delta))
+        else:
+            if places is None:
+                places = 7
+                
+            if round(abs(second-first), places) == 0:
+                return
+        
+            standardMsg = '%s != %s within %r places' % (safe_repr(first), 
+                                                          safe_repr(second), 
+                                                          places)
+        msg = self._formatMessage(msg, standardMsg)
+        raise self.failureException(msg)
+
+    def assertNotAlmostEqual(self, first, second, places=None, msg=None, delta=None):
+        """Fail if the two objects are equal as determined by their
+           difference rounded to the given number of decimal places
+           (default 7) and comparing to zero, or by comparing that the
+           between the two objects is less than the given delta.
+
+           Note that decimal places (from zero) are usually not the same
+           as significant digits (measured from the most signficant digit).
+
+           Objects that are equal automatically fail.
+        """
+        if delta is not None and places is not None:
+            raise TypeError("specify delta or places not both")
+        if delta is not None:
+            if not (first == second) and abs(first - second) > delta:
+                return
+            standardMsg = '%s == %s within %s delta' % (safe_repr(first), 
+                                                        safe_repr(second),
+                                                        safe_repr(delta))
+        else:
+            if places is None:
+                places = 7
+            if not (first == second) and round(abs(second-first), places) != 0:
+                return
+            standardMsg = '%s == %s within %r places' % (safe_repr(first), 
+                                                         safe_repr(second),
+                                                         places)
+
+        msg = self._formatMessage(msg, standardMsg)
+        raise self.failureException(msg)
+
+    # Synonyms for assertion methods
+
+    # The plurals are undocumented.  Keep them that way to discourage use.
+    # Do not add more.  Do not remove.
+    # Going through a deprecation cycle on these would annoy many people.
+    assertEquals = assertEqual
+    assertNotEquals = assertNotEqual
+    assertAlmostEquals = assertAlmostEqual
+    assertNotAlmostEquals = assertNotAlmostEqual
+    assert_ = assertTrue
+
+    # These fail* assertion method names are pending deprecation and will
+    # be a DeprecationWarning in 3.2; http://bugs.python.org/issue2578
+    def _deprecate(original_func):
+        def deprecated_func(*args, **kwargs):
+            warnings.warn(
+                ('Please use %s instead.' % original_func.__name__),
+                PendingDeprecationWarning, 2)
+            return original_func(*args, **kwargs)
+        return deprecated_func
+
+    failUnlessEqual = _deprecate(assertEqual)
+    failIfEqual = _deprecate(assertNotEqual)
+    failUnlessAlmostEqual = _deprecate(assertAlmostEqual)
+    failIfAlmostEqual = _deprecate(assertNotAlmostEqual)
+    failUnless = _deprecate(assertTrue)
+    failUnlessRaises = _deprecate(assertRaises)
+    failIf = _deprecate(assertFalse)
+
+    def assertSequenceEqual(self, seq1, seq2,
+                            msg=None, seq_type=None, max_diff=80*8):
+        """An equality assertion for ordered sequences (like lists and tuples).
+
+        For the purposes of this function, a valid ordered sequence type is one
+        which can be indexed, has a length, and has an equality operator.
+
+        Args:
+            seq1: The first sequence to compare.
+            seq2: The second sequence to compare.
+            seq_type: The expected datatype of the sequences, or None if no
+                    datatype should be enforced.
+            msg: Optional message to use on failure instead of a list of
+                    differences.
+            max_diff: Maximum size off the diff, larger diffs are not shown
+        """
+        if seq_type is not None:
+            seq_type_name = seq_type.__name__
+            if not isinstance(seq1, seq_type):
+                raise self.failureException('First sequence is not a %s: %s'
+                                            % (seq_type_name, safe_repr(seq1)))
+            if not isinstance(seq2, seq_type):
+                raise self.failureException('Second sequence is not a %s: %s'
+                                            % (seq_type_name, safe_repr(seq2)))
+        else:
+            seq_type_name = "sequence"
+
+        differing = None
+        try:
+            len1 = len(seq1)
+        except (TypeError, NotImplementedError):
+            differing = 'First %s has no length.    Non-sequence?' % (
+                    seq_type_name)
+
+        if differing is None:
+            try:
+                len2 = len(seq2)
+            except (TypeError, NotImplementedError):
+                differing = 'Second %s has no length.    Non-sequence?' % (
+                        seq_type_name)
+
+        if differing is None:
+            if seq1 == seq2:
+                return
+
+            seq1_repr = repr(seq1)
+            seq2_repr = repr(seq2)
+            if len(seq1_repr) > 30:
+                seq1_repr = seq1_repr[:30] + '...'
+            if len(seq2_repr) > 30:
+                seq2_repr = seq2_repr[:30] + '...'
+            elements = (seq_type_name.capitalize(), seq1_repr, seq2_repr)
+            differing = '%ss differ: %s != %s\n' % elements
+
+            for i in xrange(min(len1, len2)):
+                try:
+                    item1 = seq1[i]
+                except (TypeError, IndexError, NotImplementedError):
+                    differing += ('\nUnable to index element %d of first %s\n' %
+                                 (i, seq_type_name))
+                    break
+
+                try:
+                    item2 = seq2[i]
+                except (TypeError, IndexError, NotImplementedError):
+                    differing += ('\nUnable to index element %d of second %s\n' %
+                                 (i, seq_type_name))
+                    break
+
+                if item1 != item2:
+                    differing += ('\nFirst differing element %d:\n%s\n%s\n' %
+                                 (i, item1, item2))
+                    break
+            else:
+                if (len1 == len2 and seq_type is None and
+                    type(seq1) != type(seq2)):
+                    # The sequences are the same, but have differing types.
+                    return
+
+            if len1 > len2:
+                differing += ('\nFirst %s contains %d additional '
+                             'elements.\n' % (seq_type_name, len1 - len2))
+                try:
+                    differing += ('First extra element %d:\n%s\n' %
+                                  (len2, seq1[len2]))
+                except (TypeError, IndexError, NotImplementedError):
+                    differing += ('Unable to index element %d '
+                                  'of first %s\n' % (len2, seq_type_name))
+            elif len1 < len2:
+                differing += ('\nSecond %s contains %d additional '
+                             'elements.\n' % (seq_type_name, len2 - len1))
+                try:
+                    differing += ('First extra element %d:\n%s\n' %
+                                  (len1, seq2[len1]))
+                except (TypeError, IndexError, NotImplementedError):
+                    differing += ('Unable to index element %d '
+                                  'of second %s\n' % (len1, seq_type_name))
+        standardMsg = differing
+        diffMsg = '\n' + '\n'.join(
+            difflib.ndiff(pprint.pformat(seq1).splitlines(),
+                          pprint.pformat(seq2).splitlines()))
+
+        standardMsg = self._truncateMessage(standardMsg, diffMsg)
+        msg = self._formatMessage(msg, standardMsg)
+        self.fail(msg)
+
+    def _truncateMessage(self, message, diff):
+        max_diff = self.maxDiff
+        if max_diff is None or len(diff) <= max_diff:
+            return message + diff
+        return message + (DIFF_OMITTED % len(diff))
+
+    def assertListEqual(self, list1, list2, msg=None):
+        """A list-specific equality assertion.
+
+        Args:
+            list1: The first list to compare.
+            list2: The second list to compare.
+            msg: Optional message to use on failure instead of a list of
+                    differences.
+
+        """
+        self.assertSequenceEqual(list1, list2, msg, seq_type=list)
+
+    def assertTupleEqual(self, tuple1, tuple2, msg=None):
+        """A tuple-specific equality assertion.
+
+        Args:
+            tuple1: The first tuple to compare.
+            tuple2: The second tuple to compare.
+            msg: Optional message to use on failure instead of a list of
+                    differences.
+        """
+        self.assertSequenceEqual(tuple1, tuple2, msg, seq_type=tuple)
+
+    def assertSetEqual(self, set1, set2, msg=None):
+        """A set-specific equality assertion.
+
+        Args:
+            set1: The first set to compare.
+            set2: The second set to compare.
+            msg: Optional message to use on failure instead of a list of
+                    differences.
+
+        assertSetEqual uses ducktyping to support
+        different types of sets, and is optimized for sets specifically
+        (parameters must support a difference method).
+        """
+        try:
+            difference1 = set1.difference(set2)
+        except TypeError, e:
+            self.fail('invalid type when attempting set difference: %s' % e)
+        except AttributeError, e:
+            self.fail('first argument does not support set difference: %s' % e)
+
+        try:
+            difference2 = set2.difference(set1)
+        except TypeError, e:
+            self.fail('invalid type when attempting set difference: %s' % e)
+        except AttributeError, e:
+            self.fail('second argument does not support set difference: %s' % e)
+
+        if not (difference1 or difference2):
+            return
+
+        lines = []
+        if difference1:
+            lines.append('Items in the first set but not the second:')
+            for item in difference1:
+                lines.append(repr(item))
+        if difference2:
+            lines.append('Items in the second set but not the first:')
+            for item in difference2:
+                lines.append(repr(item))
+
+        standardMsg = '\n'.join(lines)
+        self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertIn(self, member, container, msg=None):
+        """Just like self.assertTrue(a in b), but with a nicer default message."""
+        if member not in container:
+            standardMsg = '%s not found in %s' % (safe_repr(member), 
+                                                   safe_repr(container))
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertNotIn(self, member, container, msg=None):
+        """Just like self.assertTrue(a not in b), but with a nicer default message."""
+        if member in container:
+            standardMsg = '%s unexpectedly found in %s' % (safe_repr(member), 
+                                                            safe_repr(container))
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertIs(self, expr1, expr2, msg=None):
+        """Just like self.assertTrue(a is b), but with a nicer default message."""
+        if expr1 is not expr2:
+            standardMsg = '%s is not %s' % (safe_repr(expr1), safe_repr(expr2))
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertIsNot(self, expr1, expr2, msg=None):
+        """Just like self.assertTrue(a is not b), but with a nicer default message."""
+        if expr1 is expr2:
+            standardMsg = 'unexpectedly identical: %s' % (safe_repr(expr1),)
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertDictEqual(self, d1, d2, msg=None):
+        self.assert_(isinstance(d1, dict), 'First argument is not a dictionary')
+        self.assert_(isinstance(d2, dict), 'Second argument is not a dictionary')
+
+        if d1 != d2:
+            standardMsg = '%s != %s' % (safe_repr(d1, True), safe_repr(d2, True))
+            diff = ('\n' + '\n'.join(difflib.ndiff(
+                           pprint.pformat(d1).splitlines(),
+                           pprint.pformat(d2).splitlines())))
+            standardMsg = self._truncateMessage(standardMsg, diff)
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertDictContainsSubset(self, expected, actual, msg=None):
+        """Checks whether actual is a superset of expected."""
+        missing = []
+        mismatched = []
+        for key, value in expected.iteritems():
+            if key not in actual:
+                missing.append(key)
+            else:
+                try:
+                    are_equal = (value == actual[key])
+                except UnicodeDecodeError:
+                    are_equal = False
+                if not are_equal:
+                    mismatched.append('%s, expected: %s, actual: %s' %
+                                      (safe_repr(key), safe_repr(value), 
+                                       safe_repr(actual[key])))
+
+        if not (missing or mismatched):
+            return
+
+        standardMsg = ''
+        if missing:
+            standardMsg = 'Missing: %s' % ','.join([safe_repr(m) for m in 
+                                                    missing])
+        if mismatched:
+            if standardMsg:
+                standardMsg += '; '
+            standardMsg += 'Mismatched values: %s' % ','.join(mismatched)
+
+        self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertItemsEqual(self, expected_seq, actual_seq, msg=None):
+        """An unordered sequence specific comparison. It asserts that
+        expected_seq and actual_seq contain the same elements. It is
+        the equivalent of::
+        
+            self.assertEqual(sorted(expected_seq), sorted(actual_seq))
+
+        Raises with an error message listing which elements of expected_seq
+        are missing from actual_seq and vice versa if any.
+        
+        Asserts that each element has the same count in both sequences.
+        Example:
+            - [0, 1, 1] and [1, 0, 1] compare equal.
+            - [0, 0, 1] and [0, 1] compare unequal.
+        """
+        try:
+            
+            expected = expected_seq[:]
+            expected.sort()
+            actual = actual_seq[:]
+            actual.sort()
+        except (TypeError, AttributeError):
+            # Unsortable items (example: set(), complex(), ...)
+            expected = list(expected_seq)
+            actual = list(actual_seq)
+            missing, unexpected = unorderable_list_difference(
+                expected, actual, ignore_duplicate=False
+            )
+        else:
+            return self.assertSequenceEqual(expected, actual, msg=msg)
+
+        errors = []
+        if missing:
+            errors.append('Expected, but missing:\n    %s' % 
+                           safe_repr(missing))
+        if unexpected:
+            errors.append('Unexpected, but present:\n    %s' % 
+                           safe_repr(unexpected))
+        if errors:
+            standardMsg = '\n'.join(errors)
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertMultiLineEqual(self, first, second, msg=None):
+        """Assert that two multi-line strings are equal."""
+        self.assert_(isinstance(first, basestring), (
+                'First argument is not a string'))
+        self.assert_(isinstance(second, basestring), (
+                'Second argument is not a string'))
+
+        if first != second:
+            standardMsg = '%s != %s' % (safe_repr(first, True), safe_repr(second, True))
+            diff = '\n' + ''.join(difflib.ndiff(first.splitlines(True),
+                                                       second.splitlines(True)))
+            standardMsg = self._truncateMessage(standardMsg, diff)
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertLess(self, a, b, msg=None):
+        """Just like self.assertTrue(a < b), but with a nicer default message."""
+        if not a < b:
+            standardMsg = '%s not less than %s' % (safe_repr(a), safe_repr(b))
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertLessEqual(self, a, b, msg=None):
+        """Just like self.assertTrue(a <= b), but with a nicer default message."""
+        if not a <= b:
+            standardMsg = '%s not less than or equal to %s' % (safe_repr(a), safe_repr(b))
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertGreater(self, a, b, msg=None):
+        """Just like self.assertTrue(a > b), but with a nicer default message."""
+        if not a > b:
+            standardMsg = '%s not greater than %s' % (safe_repr(a), safe_repr(b))
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertGreaterEqual(self, a, b, msg=None):
+        """Just like self.assertTrue(a >= b), but with a nicer default message."""
+        if not a >= b:
+            standardMsg = '%s not greater than or equal to %s' % (safe_repr(a), safe_repr(b))
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertIsNone(self, obj, msg=None):
+        """Same as self.assertTrue(obj is None), with a nicer default message."""
+        if obj is not None:
+            standardMsg = '%s is not None' % (safe_repr(obj),)
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertIsNotNone(self, obj, msg=None):
+        """Included for symmetry with assertIsNone."""
+        if obj is None:
+            standardMsg = 'unexpectedly None'
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertIsInstance(self, obj, cls, msg=None):
+        """Same as self.assertTrue(isinstance(obj, cls)), with a nicer
+        default message."""
+        if not isinstance(obj, cls):
+            standardMsg = '%s is not an instance of %r' % (safe_repr(obj), cls)
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertNotIsInstance(self, obj, cls, msg=None):
+        """Included for symmetry with assertIsInstance."""
+        if isinstance(obj, cls):
+            standardMsg = '%s is an instance of %r' % (safe_repr(obj), cls)
+            self.fail(self._formatMessage(msg, standardMsg))
+
+    def assertRaisesRegexp(self, expected_exception, expected_regexp,
+                           callable_obj=None, *args, **kwargs):
+        """Asserts that the message in a raised exception matches a regexp.
+
+        Args:
+            expected_exception: Exception class expected to be raised.
+            expected_regexp: Regexp (re pattern object or string) expected
+                    to be found in error message.
+            callable_obj: Function to be called.
+            args: Extra args.
+            kwargs: Extra kwargs.
+        """
+        if callable_obj is None:
+            return _AssertRaisesContext(expected_exception, self, expected_regexp)
+        try:
+            callable_obj(*args, **kwargs)
+        except expected_exception, exc_value:
+            if isinstance(expected_regexp, basestring):
+                expected_regexp = re.compile(expected_regexp)
+            if not expected_regexp.search(str(exc_value)):
+                raise self.failureException('"%s" does not match "%s"' %
+                         (expected_regexp.pattern, str(exc_value)))
+        else:
+            if hasattr(expected_exception, '__name__'): 
+                excName = expected_exception.__name__
+            else: 
+                excName = str(expected_exception)
+            raise self.failureException, "%s not raised" % excName
+
+
+    def assertRegexpMatches(self, text, expected_regexp, msg=None):
+        """Fail the test unless the text matches the regular expression."""
+        if isinstance(expected_regexp, basestring):
+            expected_regexp = re.compile(expected_regexp)
+        if not expected_regexp.search(text):
+            msg = msg or "Regexp didn't match"
+            msg = '%s: %r not found in %r' % (msg, expected_regexp.pattern, text)
+            raise self.failureException(msg)
+
+    def assertNotRegexpMatches(self, text, unexpected_regexp, msg=None):
+        """Fail the test if the text matches the regular expression."""
+        if isinstance(unexpected_regexp, basestring):
+            unexpected_regexp = re.compile(unexpected_regexp)
+        match = unexpected_regexp.search(text)
+        if match:
+            msg = msg or "Regexp matched"
+            msg = '%s: %r matches %r in %r' % (msg,
+                                               text[match.start():match.end()],
+                                               unexpected_regexp.pattern,
+                                               text)
+            raise self.failureException(msg)
+
+class FunctionTestCase(TestCase):
+    """A test case that wraps a test function.
+
+    This is useful for slipping pre-existing test functions into the
+    unittest framework. Optionally, set-up and tidy-up functions can be
+    supplied. As with TestCase, the tidy-up ('tearDown') function will
+    always be called if the set-up ('setUp') function ran successfully.
+    """
+
+    def __init__(self, testFunc, setUp=None, tearDown=None, description=None):
+        super(FunctionTestCase, self).__init__()
+        self._setUpFunc = setUp
+        self._tearDownFunc = tearDown
+        self._testFunc = testFunc
+        self._description = description
+
+    def setUp(self):
+        if self._setUpFunc is not None:
+            self._setUpFunc()
+
+    def tearDown(self):
+        if self._tearDownFunc is not None:
+            self._tearDownFunc()
+
+    def runTest(self):
+        self._testFunc()
+
+    def id(self):
+        return self._testFunc.__name__
+
+    def __eq__(self, other):
+        if not isinstance(other, self.__class__):
+            return NotImplemented
+
+        return self._setUpFunc == other._setUpFunc and \
+               self._tearDownFunc == other._tearDownFunc and \
+               self._testFunc == other._testFunc and \
+               self._description == other._description
+
+    def __ne__(self, other):
+        return not self == other
+
+    def __hash__(self):
+        return hash((type(self), self._setUpFunc, self._tearDownFunc,
+                     self._testFunc, self._description))
+
+    def __str__(self):
+        return "%s (%s)" % (strclass(self.__class__),
+                            self._testFunc.__name__)
+
+    def __repr__(self):
+        return "<%s testFunc=%s>" % (strclass(self.__class__),
+                                     self._testFunc)
+
+    def shortDescription(self):
+        if self._description is not None:
+            return self._description
+        doc = self._testFunc.__doc__
+        return doc and doc.split("\n")[0].strip() or None
Index: django/utils/unittest/util.py
===================================================================
--- django/utils/unittest/util.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/util.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,99 @@
+"""Various utility functions."""
+
+__unittest = True
+
+
+_MAX_LENGTH = 80
+def safe_repr(obj, short=False):
+    try:
+        result = repr(obj)
+    except Exception:
+        result = object.__repr__(obj)
+    if not short or len(result) < _MAX_LENGTH:
+        return result
+    return result[:_MAX_LENGTH] + ' [truncated]...'
+
+def safe_str(obj):
+    try:
+        return str(obj)
+    except Exception:
+        return object.__str__(obj)
+
+def strclass(cls):
+    return "%s.%s" % (cls.__module__, cls.__name__)
+
+def sorted_list_difference(expected, actual):
+    """Finds elements in only one or the other of two, sorted input lists.
+
+    Returns a two-element tuple of lists.    The first list contains those
+    elements in the "expected" list but not in the "actual" list, and the
+    second contains those elements in the "actual" list but not in the
+    "expected" list.    Duplicate elements in either input list are ignored.
+    """
+    i = j = 0
+    missing = []
+    unexpected = []
+    while True:
+        try:
+            e = expected[i]
+            a = actual[j]
+            if e < a:
+                missing.append(e)
+                i += 1
+                while expected[i] == e:
+                    i += 1
+            elif e > a:
+                unexpected.append(a)
+                j += 1
+                while actual[j] == a:
+                    j += 1
+            else:
+                i += 1
+                try:
+                    while expected[i] == e:
+                        i += 1
+                finally:
+                    j += 1
+                    while actual[j] == a:
+                        j += 1
+        except IndexError:
+            missing.extend(expected[i:])
+            unexpected.extend(actual[j:])
+            break
+    return missing, unexpected
+
+def unorderable_list_difference(expected, actual, ignore_duplicate=False):
+    """Same behavior as sorted_list_difference but
+    for lists of unorderable items (like dicts).
+
+    As it does a linear search per item (remove) it
+    has O(n*n) performance.
+    """
+    missing = []
+    unexpected = []
+    while expected:
+        item = expected.pop()
+        try:
+            actual.remove(item)
+        except ValueError:
+            missing.append(item)
+        if ignore_duplicate:
+            for lst in expected, actual:
+                try:
+                    while True:
+                        lst.remove(item)
+                except ValueError:
+                    pass
+    if ignore_duplicate:
+        while actual:
+            item = actual.pop()
+            unexpected.append(item)
+            try:
+                while True:
+                    actual.remove(item)
+            except ValueError:
+                pass
+        return missing, unexpected
+
+    # anything left in actual is unexpected
+    return missing, actual
Index: django/utils/unittest/result.py
===================================================================
--- django/utils/unittest/result.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/result.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,184 @@
+"""Test result object"""
+
+import sys
+import traceback
+import unittest
+
+from StringIO import StringIO
+
+from django.utils.unittest import util
+from django.utils.unittest.compatibility import wraps
+
+__unittest = True
+
+def failfast(method):
+    def inner(self, *args, **kw):
+        if getattr(self, 'failfast', False):
+            self.stop()
+        return method(self, *args, **kw)
+    inner = wraps(method)(inner)
+    return inner
+
+
+STDOUT_LINE = '\nStdout:\n%s'
+STDERR_LINE = '\nStderr:\n%s'
+
+class TestResult(unittest.TestResult):
+    """Holder for test result information.
+
+    Test results are automatically managed by the TestCase and TestSuite
+    classes, and do not need to be explicitly manipulated by writers of tests.
+
+    Each instance holds the total number of tests run, and collections of
+    failures and errors that occurred among those test runs. The collections
+    contain tuples of (testcase, exceptioninfo), where exceptioninfo is the
+    formatted traceback of the error that occurred.
+    """
+    _previousTestClass = None
+    _moduleSetUpFailed = False
+    
+    def __init__(self):
+        self.failfast = False
+        self.failures = []
+        self.errors = []
+        self.testsRun = 0
+        self.skipped = []
+        self.expectedFailures = []
+        self.unexpectedSuccesses = []
+        self.shouldStop = False
+        self.buffer = False
+        self._stdout_buffer = None
+        self._stderr_buffer = None
+        self._original_stdout = sys.stdout
+        self._original_stderr = sys.stderr
+        self._mirrorOutput = False
+    
+    def startTest(self, test):
+        "Called when the given test is about to be run"
+        self.testsRun += 1
+        self._mirrorOutput = False
+        if self.buffer:
+            if self._stderr_buffer is None:
+                self._stderr_buffer = StringIO()
+                self._stdout_buffer = StringIO()
+            sys.stdout = self._stdout_buffer
+            sys.stderr = self._stderr_buffer
+
+    def startTestRun(self):
+        """Called once before any tests are executed.
+
+        See startTest for a method called before each test.
+        """
+
+    def stopTest(self, test):
+        """Called when the given test has been run"""
+        if self.buffer:
+            if self._mirrorOutput:
+                output = sys.stdout.getvalue()
+                error = sys.stderr.getvalue()
+                if output:
+                    if not output.endswith('\n'):
+                        output += '\n'
+                    self._original_stdout.write(STDOUT_LINE % output)
+                if error:
+                    if not error.endswith('\n'):
+                        error += '\n'
+                    self._original_stderr.write(STDERR_LINE % error)
+                
+            sys.stdout = self._original_stdout
+            sys.stderr = self._original_stderr
+            self._stdout_buffer.seek(0)
+            self._stdout_buffer.truncate()
+            self._stderr_buffer.seek(0)
+            self._stderr_buffer.truncate()
+        self._mirrorOutput = False
+        
+
+    def stopTestRun(self):
+        """Called once after all tests are executed.
+
+        See stopTest for a method called after each test.
+        """
+
+
+    def addError(self, test, err):
+        """Called when an error has occurred. 'err' is a tuple of values as
+        returned by sys.exc_info().
+        """
+        self.errors.append((test, self._exc_info_to_string(err, test)))
+        self._mirrorOutput = True
+    addError = failfast(addError)
+
+    def addFailure(self, test, err):
+        """Called when an error has occurred. 'err' is a tuple of values as
+        returned by sys.exc_info()."""
+        self.failures.append((test, self._exc_info_to_string(err, test)))
+        self._mirrorOutput = True
+    addFailure = failfast(addFailure)
+    
+    def addSuccess(self, test):
+        "Called when a test has completed successfully"
+        pass
+
+    def addSkip(self, test, reason):
+        """Called when a test is skipped."""
+        self.skipped.append((test, reason))
+
+    def addExpectedFailure(self, test, err):
+        """Called when an expected failure/error occured."""
+        self.expectedFailures.append(
+            (test, self._exc_info_to_string(err, test)))
+
+    def addUnexpectedSuccess(self, test):
+        """Called when a test was expected to fail, but succeed."""
+        self.unexpectedSuccesses.append(test)
+    addUnexpectedSuccess = failfast(addUnexpectedSuccess)
+
+    def wasSuccessful(self):
+        "Tells whether or not this result was a success"
+        return (len(self.failures) + len(self.errors) == 0)
+
+    def stop(self):
+        "Indicates that the tests should be aborted"
+        self.shouldStop = True
+
+    def _exc_info_to_string(self, err, test):
+        """Converts a sys.exc_info()-style tuple of values into a string."""
+        exctype, value, tb = err
+        # Skip test runner traceback levels
+        while tb and self._is_relevant_tb_level(tb):
+            tb = tb.tb_next
+        if exctype is test.failureException:
+            # Skip assert*() traceback levels
+            length = self._count_relevant_tb_levels(tb)
+            msgLines = traceback.format_exception(exctype, value, tb, length)
+        else:
+            msgLines = traceback.format_exception(exctype, value, tb)
+        
+        if self.buffer:
+            output = sys.stdout.getvalue()
+            error = sys.stderr.getvalue()            
+            if output:
+                if not output.endswith('\n'):
+                    output += '\n'
+                msgLines.append(STDOUT_LINE % output)
+            if error:
+                if not error.endswith('\n'):
+                    error += '\n'
+                msgLines.append(STDERR_LINE % error)
+        return ''.join(msgLines)
+
+    def _is_relevant_tb_level(self, tb):
+        return '__unittest' in tb.tb_frame.f_globals
+
+    def _count_relevant_tb_levels(self, tb):
+        length = 0
+        while tb and not self._is_relevant_tb_level(tb):
+            length += 1
+            tb = tb.tb_next
+        return length
+
+    def __repr__(self):
+        return "<%s run=%i errors=%i failures=%i>" % \
+               (util.strclass(self.__class__), self.testsRun, len(self.errors),
+                len(self.failures))
Index: django/utils/unittest/__init__.py
===================================================================
--- django/utils/unittest/__init__.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/__init__.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,14 @@
+import sys
+
+#Django hackery to load the appropriate version of unittest
+
+if sys.version_info >= (2,7):
+    #unittest2 features are native in Python 2.7
+    from unittest import *
+else:
+    try:
+        #check the system path first
+        from unittest2 import *
+    except ImportError:
+        #otherwise fall back to our bundled version
+        from unittest2_package_init import *
Index: django/utils/unittest/unittest2_package_init.py
===================================================================
--- django/utils/unittest/unittest2_package_init.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/unittest2_package_init.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,67 @@
+"""
+unittest2
+
+unittest2 is a backport of the new features added to the unittest testing
+framework in Python 2.7. It is tested to run on Python 2.4 - 2.6.
+
+To use unittest2 instead of unittest simply replace ``import unittest`` with
+``import unittest2``.
+
+
+Copyright (c) 1999-2003 Steve Purcell
+Copyright (c) 2003-2010 Python Software Foundation
+This module is free software, and you may redistribute it and/or modify
+it under the same terms as Python itself, so long as this copyright message
+and disclaimer are retained in their original form.
+
+IN NO EVENT SHALL THE AUTHOR BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF
+THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+DAMAGE.
+
+THE AUTHOR SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE.  THE CODE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS,
+AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
+SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+"""
+
+__all__ = ['TestResult', 'TestCase', 'TestSuite',
+           'TextTestRunner', 'TestLoader', 'FunctionTestCase', 'main',
+           'defaultTestLoader', 'SkipTest', 'skip', 'skipIf', 'skipUnless',
+           'expectedFailure', 'TextTestResult', '__version__', 'collector']
+
+__version__ = '0.5.0 alpha'
+
+# Expose obsolete functions for backwards compatibility
+__all__.extend(['getTestCaseNames', 'makeSuite', 'findTestCases'])
+
+
+from django.utils.unittest.collector import collector
+from django.utils.unittest.result import TestResult
+from django.utils.unittest.case import \
+    TestCase, FunctionTestCase, SkipTest, skip, skipIf,\
+    skipUnless, expectedFailure
+
+from django.utils.unittest.suite import BaseTestSuite, TestSuite
+from django.utils.unittest.loader import \
+    TestLoader, defaultTestLoader, makeSuite, getTestCaseNames,\
+    findTestCases
+
+from django.utils.unittest.main import TestProgram, main, main_
+from django.utils.unittest.runner import TextTestRunner, TextTestResult
+
+try:
+    from django.utils.unittest.signals import\
+        installHandler, registerResult, removeResult, removeHandler
+except ImportError:
+    # Compatibility with platforms that don't have the signal module
+    pass
+else:
+    __all__.extend(['installHandler', 'registerResult', 'removeResult', 
+                    'removeHandler'])
+
+# deprecated
+_TextTestResult = TextTestResult
+
+__unittest = True
Index: django/utils/unittest/__main__.py
===================================================================
--- django/utils/unittest/__main__.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/__main__.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,10 @@
+"""Main entry point"""
+
+import sys
+if sys.argv[0].endswith("__main__.py"):
+    sys.argv[0] = "unittest2"
+
+__unittest = True
+
+from django.utils.unittest.main import main_
+main_()
Index: django/utils/unittest/signals.py
===================================================================
--- django/utils/unittest/signals.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/signals.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,57 @@
+import signal
+import weakref
+
+from django.utils.unittest.compatibility import wraps
+
+__unittest = True
+
+
+class _InterruptHandler(object):
+    def __init__(self, default_handler):
+        self.called = False
+        self.default_handler = default_handler
+
+    def __call__(self, signum, frame):
+        installed_handler = signal.getsignal(signal.SIGINT)
+        if installed_handler is not self:
+            # if we aren't the installed handler, then delegate immediately
+            # to the default handler
+            self.default_handler(signum, frame)
+            
+        if self.called:
+            self.default_handler(signum, frame)
+        self.called = True
+        for result in _results.keys():
+            result.stop()
+
+_results = weakref.WeakKeyDictionary()
+def registerResult(result):
+    _results[result] = 1
+
+def removeResult(result):
+    return bool(_results.pop(result, None))
+
+_interrupt_handler = None
+def installHandler():
+    global _interrupt_handler
+    if _interrupt_handler is None:
+        default_handler = signal.getsignal(signal.SIGINT)
+        _interrupt_handler = _InterruptHandler(default_handler)
+        signal.signal(signal.SIGINT, _interrupt_handler)
+
+
+def removeHandler(method=None):
+    if method is not None:
+        def inner(*args, **kwargs):
+            initial = signal.getsignal(signal.SIGINT)
+            removeHandler()
+            try:
+                return method(*args, **kwargs)
+            finally:
+                signal.signal(signal.SIGINT, initial)
+        inner = wraps(method)(inner)
+        return inner
+
+    global _interrupt_handler
+    if _interrupt_handler is not None:
+        signal.signal(signal.SIGINT, _interrupt_handler.default_handler)
Index: django/utils/unittest/main.py
===================================================================
--- django/utils/unittest/main.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/main.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,241 @@
+"""Unittest main program"""
+
+import sys
+import os
+import types
+
+from django.utils.unittest import loader, runner
+try:
+    from django.utils.unittest.signals import installHandler
+except ImportError:
+    installHandler = None
+
+__unittest = True
+
+FAILFAST     = "  -f, --failfast   Stop on first failure\n"
+CATCHBREAK   = "  -c, --catch      Catch control-C and display results\n"
+BUFFEROUTPUT = "  -b, --buffer     Buffer stdout and stderr during test runs\n"
+
+USAGE_AS_MAIN = """\
+Usage: %(progName)s [options] [tests]
+
+Options:
+  -h, --help       Show this message
+  -v, --verbose    Verbose output
+  -q, --quiet      Minimal output
+%(failfast)s%(catchbreak)s%(buffer)s
+Examples:
+  %(progName)s test_module                       - run tests from test_module
+  %(progName)s test_module.TestClass             - run tests from
+                                                   test_module.TestClass
+  %(progName)s test_module.TestClass.test_method - run specified test method
+
+[tests] can be a list of any number of test modules, classes and test
+methods.
+
+Alternative Usage: %(progName)s discover [options]
+
+Options:
+  -v, --verbose    Verbose output
+%(failfast)s%(catchbreak)s%(buffer)s  -s directory     Directory to start discovery ('.' default)
+  -p pattern       Pattern to match test files ('test*.py' default)
+  -t directory     Top level directory of project (default to
+                   start directory)
+
+For test discovery all test modules must be importable from the top
+level directory of the project.
+"""
+
+USAGE_FROM_MODULE = """\
+Usage: %(progName)s [options] [test] [...]
+
+Options:
+  -h, --help       Show this message
+  -v, --verbose    Verbose output
+  -q, --quiet      Minimal output
+%(failfast)s%(catchbreak)s%(buffer)s
+Examples:
+  %(progName)s                               - run default set of tests
+  %(progName)s MyTestSuite                   - run suite 'MyTestSuite'
+  %(progName)s MyTestCase.testSomething      - run MyTestCase.testSomething
+  %(progName)s MyTestCase                    - run all 'test*' test methods
+                                               in MyTestCase
+"""
+
+
+class TestProgram(object):
+    """A command-line program that runs a set of tests; this is primarily
+       for making test modules conveniently executable.
+    """
+    USAGE = USAGE_FROM_MODULE
+    
+    # defaults for testing
+    failfast = catchbreak = buffer = progName = None
+
+    def __init__(self, module='__main__', defaultTest=None,
+                 argv=None, testRunner=None,
+                 testLoader=loader.defaultTestLoader, exit=True,
+                 verbosity=1, failfast=None, catchbreak=None, buffer=None):
+        if isinstance(module, basestring):
+            self.module = __import__(module)
+            for part in module.split('.')[1:]:
+                self.module = getattr(self.module, part)
+        else:
+            self.module = module
+        if argv is None:
+            argv = sys.argv
+
+        self.exit = exit
+        self.verbosity = verbosity
+        self.failfast = failfast
+        self.catchbreak = catchbreak
+        self.buffer = buffer
+        self.defaultTest = defaultTest
+        self.testRunner = testRunner
+        self.testLoader = testLoader
+        self.progName = os.path.basename(argv[0])
+        self.parseArgs(argv)
+        self.runTests()
+
+    def usageExit(self, msg=None):
+        if msg:
+            print msg
+        usage = {'progName': self.progName, 'catchbreak': '', 'failfast': '',
+                 'buffer': ''}
+        if self.failfast != False:
+            usage['failfast'] = FAILFAST
+        if self.catchbreak != False and installHandler is not None:
+            usage['catchbreak'] = CATCHBREAK
+        if self.buffer != False:
+            usage['buffer'] = BUFFEROUTPUT
+        print self.USAGE % usage
+        sys.exit(2)
+
+    def parseArgs(self, argv):
+        if len(argv) > 1 and argv[1].lower() == 'discover':
+            self._do_discovery(argv[2:])
+            return
+
+        import getopt
+        long_opts = ['help', 'verbose', 'quiet', 'failfast', 'catch', 'buffer']
+        try:
+            options, args = getopt.getopt(argv[1:], 'hHvqfcb', long_opts)
+            for opt, value in options:
+                if opt in ('-h','-H','--help'):
+                    self.usageExit()
+                if opt in ('-q','--quiet'):
+                    self.verbosity = 0
+                if opt in ('-v','--verbose'):
+                    self.verbosity = 2
+                if opt in ('-f','--failfast'):
+                    if self.failfast is None:
+                        self.failfast = True
+                    # Should this raise an exception if -f is not valid?
+                if opt in ('-c','--catch'):
+                    if self.catchbreak is None and installHandler is not None:
+                        self.catchbreak = True
+                    # Should this raise an exception if -c is not valid?
+                if opt in ('-b','--buffer'):
+                    if self.buffer is None:
+                        self.buffer = True
+                    # Should this raise an exception if -b is not valid?
+            if len(args) == 0 and self.defaultTest is None:
+                # createTests will load tests from self.module
+                self.testNames = None
+            elif len(args) > 0:
+                self.testNames = args
+                if __name__ == '__main__':
+                    # to support python -m unittest ...
+                    self.module = None
+            else:
+                self.testNames = (self.defaultTest,)
+            self.createTests()
+        except getopt.error, msg:
+            self.usageExit(msg)
+
+    def createTests(self):
+        if self.testNames is None:
+            self.test = self.testLoader.loadTestsFromModule(self.module)
+        else:
+            self.test = self.testLoader.loadTestsFromNames(self.testNames,
+                                                           self.module)
+
+    def _do_discovery(self, argv, Loader=loader.TestLoader):
+        # handle command line args for test discovery
+        self.progName = '%s discover' % self.progName
+        import optparse
+        parser = optparse.OptionParser()
+        parser.prog = self.progName
+        parser.add_option('-v', '--verbose', dest='verbose', default=False,
+                          help='Verbose output', action='store_true')
+        if self.failfast != False:
+            parser.add_option('-f', '--failfast', dest='failfast', default=False,
+                              help='Stop on first fail or error', 
+                              action='store_true')
+        if self.catchbreak != False and installHandler is not None:
+            parser.add_option('-c', '--catch', dest='catchbreak', default=False,
+                              help='Catch ctrl-C and display results so far', 
+                              action='store_true')
+        if self.buffer != False:
+            parser.add_option('-b', '--buffer', dest='buffer', default=False,
+                              help='Buffer stdout and stderr during tests', 
+                              action='store_true')
+        parser.add_option('-s', '--start-directory', dest='start', default='.',
+                          help="Directory to start discovery ('.' default)")
+        parser.add_option('-p', '--pattern', dest='pattern', default='test*.py',
+                          help="Pattern to match tests ('test*.py' default)")
+        parser.add_option('-t', '--top-level-directory', dest='top', default=None,
+                          help='Top level directory of project (defaults to start directory)')
+
+        options, args = parser.parse_args(argv)
+        if len(args) > 3:
+            self.usageExit()
+
+        for name, value in zip(('start', 'pattern', 'top'), args):
+            setattr(options, name, value)
+        
+        # only set options from the parsing here
+        # if they weren't set explicitly in the constructor
+        if self.failfast is None:
+            self.failfast = options.failfast
+        if self.catchbreak is None and installHandler is not None:
+            self.catchbreak = options.catchbreak
+        if self.buffer is None:
+            self.buffer = options.buffer
+        
+        if options.verbose:
+            self.verbosity = 2
+
+        start_dir = options.start
+        pattern = options.pattern
+        top_level_dir = options.top
+
+        loader = Loader()
+        self.test = loader.discover(start_dir, pattern, top_level_dir)
+
+    def runTests(self):
+        if self.catchbreak:
+            installHandler()
+        if self.testRunner is None:
+            self.testRunner = runner.TextTestRunner
+        if isinstance(self.testRunner, (type, types.ClassType)):
+            try:
+                testRunner = self.testRunner(verbosity=self.verbosity,
+                                             failfast=self.failfast,
+                                             buffer=self.buffer)
+            except TypeError:
+                # didn't accept the verbosity, buffer or failfast arguments
+                testRunner = self.testRunner()
+        else:
+            # it is assumed to be a TestRunner instance
+            testRunner = self.testRunner
+        self.result = testRunner.run(self.test)
+        if self.exit:
+            sys.exit(not self.result.wasSuccessful())
+
+main = TestProgram
+
+def main_():
+    TestProgram.USAGE = USAGE_AS_MAIN
+    main(module=None)
+
Index: django/utils/unittest/collector.py
===================================================================
--- django/utils/unittest/collector.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/collector.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,9 @@
+import os
+import sys
+from django.utils.unittest.loader import defaultTestLoader
+
+def collector():
+    # import __main__ triggers code re-execution
+    __main__ = sys.modules['__main__']
+    setupDir = os.path.abspath(os.path.dirname(__main__.__file__))
+    return defaultTestLoader.discover(setupDir)
Index: django/utils/unittest/loader.py
===================================================================
--- django/utils/unittest/loader.py	(.../trunk)	(revision 0)
+++ django/utils/unittest/loader.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -0,0 +1,323 @@
+"""Loading unittests."""
+
+import os
+import re
+import sys
+import traceback
+import types
+import unittest
+
+from fnmatch import fnmatch
+
+from django.utils.unittest import case, suite
+
+try:
+    from os.path import relpath
+except ImportError:
+    from django.utils.unittest.compatibility import relpath
+
+__unittest = True
+
+
+def _CmpToKey(mycmp):
+    'Convert a cmp= function into a key= function'
+    class K(object):
+        def __init__(self, obj):
+            self.obj = obj
+        def __lt__(self, other):
+            return mycmp(self.obj, other.obj) == -1
+    return K
+
+
+# what about .pyc or .pyo (etc)
+# we would need to avoid loading the same tests multiple times
+# from '.py', '.pyc' *and* '.pyo'
+VALID_MODULE_NAME = re.compile(r'[_a-z]\w*\.py$', re.IGNORECASE)
+
+
+def _make_failed_import_test(name, suiteClass):
+    message = 'Failed to import test module: %s' % name
+    if hasattr(traceback, 'format_exc'):
+        # Python 2.3 compatibility
+        # format_exc returns two frames of discover.py as well
+        message += '\n%s' % traceback.format_exc()
+    return _make_failed_test('ModuleImportFailure', name, ImportError(message),
+                             suiteClass)
+
+def _make_failed_load_tests(name, exception, suiteClass):
+    return _make_failed_test('LoadTestsFailure', name, exception, suiteClass)
+
+def _make_failed_test(classname, methodname, exception, suiteClass):
+    def testFailure(self):
+        raise exception
+    attrs = {methodname: testFailure}
+    TestClass = type(classname, (case.TestCase,), attrs)
+    return suiteClass((TestClass(methodname),))
+    
+
+class TestLoader(unittest.TestLoader):
+    """
+    This class is responsible for loading tests according to various criteria
+    and returning them wrapped in a TestSuite
+    """
+    testMethodPrefix = 'test'
+    sortTestMethodsUsing = cmp
+    suiteClass = suite.TestSuite
+    _top_level_dir = None
+
+    def loadTestsFromTestCase(self, testCaseClass):
+        """Return a suite of all tests cases contained in testCaseClass"""
+        if issubclass(testCaseClass, suite.TestSuite):
+            raise TypeError("Test cases should not be derived from TestSuite."
+                            " Maybe you meant to derive from TestCase?")
+        testCaseNames = self.getTestCaseNames(testCaseClass)
+        if not testCaseNames and hasattr(testCaseClass, 'runTest'):
+            testCaseNames = ['runTest']
+        loaded_suite = self.suiteClass(map(testCaseClass, testCaseNames))
+        return loaded_suite
+
+    def loadTestsFromModule(self, module, use_load_tests=True):
+        """Return a suite of all tests cases contained in the given module"""
+        tests = []
+        for name in dir(module):
+            obj = getattr(module, name)
+            if isinstance(obj, type) and issubclass(obj, unittest.TestCase):
+                tests.append(self.loadTestsFromTestCase(obj))
+
+        load_tests = getattr(module, 'load_tests', None)
+        tests = self.suiteClass(tests)
+        if use_load_tests and load_tests is not None:
+            try:
+                return load_tests(self, tests, None)
+            except Exception, e:
+                return _make_failed_load_tests(module.__name__, e,
+                                               self.suiteClass)
+        return tests
+
+    def loadTestsFromName(self, name, module=None):
+        """Return a suite of all tests cases given a string specifier.
+
+        The name may resolve either to a module, a test case class, a
+        test method within a test case class, or a callable object which
+        returns a TestCase or TestSuite instance.
+
+        The method optionally resolves the names relative to a given module.
+        """
+        parts = name.split('.')
+        if module is None:
+            parts_copy = parts[:]
+            while parts_copy:
+                try:
+                    module = __import__('.'.join(parts_copy))
+                    break
+                except ImportError:
+                    del parts_copy[-1]
+                    if not parts_copy:
+                        raise
+            parts = parts[1:]
+        obj = module
+        for part in parts:
+            parent, obj = obj, getattr(obj, part)
+
+        if isinstance(obj, types.ModuleType):
+            return self.loadTestsFromModule(obj)
+        elif isinstance(obj, type) and issubclass(obj, unittest.TestCase):
+            return self.loadTestsFromTestCase(obj)
+        elif (isinstance(obj, types.UnboundMethodType) and
+              isinstance(parent, type) and
+              issubclass(parent, case.TestCase)):
+            return self.suiteClass([parent(obj.__name__)])
+        elif isinstance(obj, unittest.TestSuite):
+            return obj
+        elif hasattr(obj, '__call__'):
+            test = obj()
+            if isinstance(test, unittest.TestSuite):
+                return test
+            elif isinstance(test, unittest.TestCase):
+                return self.suiteClass([test])
+            else:
+                raise TypeError("calling %s returned %s, not a test" %
+                                (obj, test))
+        else:
+            raise TypeError("don't know how to make test from: %s" % obj)
+
+    def loadTestsFromNames(self, names, module=None):
+        """Return a suite of all tests cases found using the given sequence
+        of string specifiers. See 'loadTestsFromName()'.
+        """
+        suites = [self.loadTestsFromName(name, module) for name in names]
+        return self.suiteClass(suites)
+
+    def getTestCaseNames(self, testCaseClass):
+        """Return a sorted sequence of method names found within testCaseClass
+        """
+        def isTestMethod(attrname, testCaseClass=testCaseClass,
+                         prefix=self.testMethodPrefix):
+            return attrname.startswith(prefix) and \
+                hasattr(getattr(testCaseClass, attrname), '__call__')
+        testFnNames = filter(isTestMethod, dir(testCaseClass))
+        if self.sortTestMethodsUsing:
+            # testFnNames.sort(key=_CmpToKey(self.sortTestMethodsUsing))
+            testFnNames.sort(self.sortTestMethodsUsing)
+        return testFnNames
+
+    def discover(self, start_dir, pattern='test*.py', top_level_dir=None):
+        """Find and return all test modules from the specified start
+        directory, recursing into subdirectories to find them. Only test files
+        that match the pattern will be loaded. (Using shell style pattern
+        matching.)
+
+        All test modules must be importable from the top level of the project.
+        If the start directory is not the top level directory then the top
+        level directory must be specified separately.
+
+        If a test package name (directory with '__init__.py') matches the
+        pattern then the package will be checked for a 'load_tests' function. If
+        this exists then it will be called with loader, tests, pattern.
+
+        If load_tests exists then discovery does  *not* recurse into the package,
+        load_tests is responsible for loading all tests in the package.
+
+        The pattern is deliberately not stored as a loader attribute so that
+        packages can continue discovery themselves. top_level_dir is stored so
+        load_tests does not need to pass this argument in to loader.discover().
+        """
+        set_implicit_top = False
+        if top_level_dir is None and self._top_level_dir is not None:
+            # make top_level_dir optional if called from load_tests in a package
+            top_level_dir = self._top_level_dir
+        elif top_level_dir is None:
+            set_implicit_top = True
+            top_level_dir = start_dir
+
+        top_level_dir = os.path.abspath(top_level_dir)
+
+        if not top_level_dir in sys.path:
+            # all test modules must be importable from the top level directory
+            # should we *unconditionally* put the start directory in first
+            # in sys.path to minimise likelihood of conflicts between installed
+            # modules and development versions?
+            sys.path.insert(0, top_level_dir)
+        self._top_level_dir = top_level_dir
+
+        is_not_importable = False
+        if os.path.isdir(os.path.abspath(start_dir)):
+            start_dir = os.path.abspath(start_dir)
+            if start_dir != top_level_dir:
+                is_not_importable = not os.path.isfile(os.path.join(start_dir, '__init__.py'))
+        else:
+            # support for discovery from dotted module names
+            try:
+                __import__(start_dir)
+            except ImportError:
+                is_not_importable = True
+            else:
+                the_module = sys.modules[start_dir]
+                top_part = start_dir.split('.')[0]
+                start_dir = os.path.abspath(os.path.dirname((the_module.__file__)))
+                if set_implicit_top:
+                    self._top_level_dir = os.path.abspath(os.path.dirname(os.path.dirname(sys.modules[top_part].__file__)))
+                    sys.path.remove(top_level_dir)
+
+        if is_not_importable:
+            raise ImportError('Start directory is not importable: %r' % start_dir)
+
+        tests = list(self._find_tests(start_dir, pattern))
+        return self.suiteClass(tests)
+
+    def _get_name_from_path(self, path):
+        path = os.path.splitext(os.path.normpath(path))[0]
+
+        _relpath = relpath(path, self._top_level_dir)
+        assert not os.path.isabs(_relpath), "Path must be within the project"
+        assert not _relpath.startswith('..'), "Path must be within the project"
+
+        name = _relpath.replace(os.path.sep, '.')
+        return name
+
+    def _get_module_from_name(self, name):
+        __import__(name)
+        return sys.modules[name]
+
+    def _match_path(self, path, full_path, pattern):
+        # override this method to use alternative matching strategy
+        return fnmatch(path, pattern)
+    
+    def _find_tests(self, start_dir, pattern):
+        """Used by discovery. Yields test suites it loads."""
+        paths = os.listdir(start_dir)
+
+        for path in paths:
+            full_path = os.path.join(start_dir, path)
+            if os.path.isfile(full_path):
+                if not VALID_MODULE_NAME.match(path):
+                    # valid Python identifiers only
+                    continue
+                if not self._match_path(path, full_path, pattern):
+                    continue
+                # if the test file matches, load it
+                name = self._get_name_from_path(full_path)
+                try:
+                    module = self._get_module_from_name(name)
+                except:
+                    yield _make_failed_import_test(name, self.suiteClass)
+                else:
+                    mod_file = os.path.abspath(getattr(module, '__file__', full_path))
+                    realpath = os.path.splitext(mod_file)[0]
+                    fullpath_noext = os.path.splitext(full_path)[0]
+                    if realpath.lower() != fullpath_noext.lower():
+                        module_dir = os.path.dirname(realpath)
+                        mod_name = os.path.splitext(os.path.basename(full_path))[0]
+                        expected_dir = os.path.dirname(full_path)
+                        msg = ("%r module incorrectly imported from %r. Expected %r. "
+                               "Is this module globally installed?")
+                        raise ImportError(msg % (mod_name, module_dir, expected_dir))
+                    yield self.loadTestsFromModule(module)
+            elif os.path.isdir(full_path):
+                if not os.path.isfile(os.path.join(full_path, '__init__.py')):
+                    continue
+
+                load_tests = None
+                tests = None
+                if fnmatch(path, pattern):
+                    # only check load_tests if the package directory itself matches the filter
+                    name = self._get_name_from_path(full_path)
+                    package = self._get_module_from_name(name)
+                    load_tests = getattr(package, 'load_tests', None)
+                    tests = self.loadTestsFromModule(package, use_load_tests=False)
+
+                if load_tests is None:
+                    if tests is not None:
+                        # tests loaded from package file
+                        yield tests
+                    # recurse into the package
+                    for test in self._find_tests(full_path, pattern):
+                        yield test
+                else:
+                    try:
+                        yield load_tests(self, tests, pattern)
+                    except Exception, e:
+                        yield _make_failed_load_tests(package.__name__, e,
+                                                      self.suiteClass)
+
+defaultTestLoader = TestLoader()
+
+
+def _makeLoader(prefix, sortUsing, suiteClass=None):
+    loader = TestLoader()
+    loader.sortTestMethodsUsing = sortUsing
+    loader.testMethodPrefix = prefix
+    if suiteClass:
+        loader.suiteClass = suiteClass
+    return loader
+
+def getTestCaseNames(testCaseClass, prefix, sortUsing=cmp):
+    return _makeLoader(prefix, sortUsing).getTestCaseNames(testCaseClass)
+
+def makeSuite(testCaseClass, prefix='test', sortUsing=cmp,
+              suiteClass=suite.TestSuite):
+    return _makeLoader(prefix, sortUsing, suiteClass).loadTestsFromTestCase(testCaseClass)
+
+def findTestCases(module, prefix='test', sortUsing=cmp,
+                  suiteClass=suite.TestSuite):
+    return _makeLoader(prefix, sortUsing, suiteClass).loadTestsFromModule(module)
Index: tests/regressiontests/test_client_regress/models.py
===================================================================
--- tests/regressiontests/test_client_regress/models.py	(.../trunk)	(revision 13428)
+++ tests/regressiontests/test_client_regress/models.py	(.../branches/soc2010/test-refactor)	(revision 13428)
@@ -34,83 +34,83 @@
         try:
             self.assertContains(response, 'text', status_code=999)
         except AssertionError, e:
-            self.assertEquals(str(e), "Couldn't retrieve content: Response code was 200 (expected 999)")
+            self.assertTrue("Couldn't retrieve content: Response code was 200 (expected 999)" in str(e))
         try:
             self.assertContains(response, 'text', status_code=999, msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Couldn't retrieve content: Response code was 200 (expected 999)")
+            self.assertTrue("abc: Couldn't retrieve content: Response code was 200 (expected 999)" in str(e))
 
         try:
             self.assertNotContains(response, 'text', status_code=999)
         except AssertionError, e:
-            self.assertEquals(str(e), "Couldn't retrieve content: Response code was 200 (expected 999)")
+            self.assertTrue("Couldn't retrieve content: Response code was 200 (expected 999)" in str(e))
         try:
             self.assertNotContains(response, 'text', status_code=999, msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Couldn't retrieve content: Response code was 200 (expected 999)")
+            self.assertTrue("abc: Couldn't retrieve content: Response code was 200 (expected 999)" in str(e))
 
         try:
             self.assertNotContains(response, 'once')
         except AssertionError, e:
-            self.assertEquals(str(e), "Response should not contain 'once'")
+            self.assertTrue("Response should not contain 'once'" in str(e))
         try:
             self.assertNotContains(response, 'once', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Response should not contain 'once'")
+            self.assertTrue("abc: Response should not contain 'once'" in str(e))
 
         try:
             self.assertContains(response, 'never', 1)
         except AssertionError, e:
-            self.assertEquals(str(e), "Found 0 instances of 'never' in response (expected 1)")
+            self.assertTrue("Found 0 instances of 'never' in response (expected 1)" in str(e))
         try:
             self.assertContains(response, 'never', 1, msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Found 0 instances of 'never' in response (expected 1)")
+            self.assertTrue("abc: Found 0 instances of 'never' in response (expected 1)" in str(e))
 
         try:
             self.assertContains(response, 'once', 0)
         except AssertionError, e:
-            self.assertEquals(str(e), "Found 1 instances of 'once' in response (expected 0)")
+            self.assertTrue("Found 1 instances of 'once' in response (expected 0)" in str(e))
         try:
             self.assertContains(response, 'once', 0, msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Found 1 instances of 'once' in response (expected 0)")
+            self.assertTrue("abc: Found 1 instances of 'once' in response (expected 0)" in str(e))
 
         try:
             self.assertContains(response, 'once', 2)
         except AssertionError, e:
-            self.assertEquals(str(e), "Found 1 instances of 'once' in response (expected 2)")
+            self.assertTrue("Found 1 instances of 'once' in response (expected 2)" in str(e))
         try:
             self.assertContains(response, 'once', 2, msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Found 1 instances of 'once' in response (expected 2)")
+            self.assertTrue("abc: Found 1 instances of 'once' in response (expected 2)" in str(e))
 
         try:
             self.assertContains(response, 'twice', 1)
         except AssertionError, e:
-            self.assertEquals(str(e), "Found 2 instances of 'twice' in response (expected 1)")
+            self.assertTrue("Found 2 instances of 'twice' in response (expected 1)" in str(e))
         try:
             self.assertContains(response, 'twice', 1, msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Found 2 instances of 'twice' in response (expected 1)")
+            self.assertTrue("abc: Found 2 instances of 'twice' in response (expected 1)" in str(e))
 
         try:
             self.assertContains(response, 'thrice')
         except AssertionError, e:
-            self.assertEquals(str(e), "Couldn't find 'thrice' in response")
+            self.assertTrue("Couldn't find 'thrice' in response" in str(e))
         try:
             self.assertContains(response, 'thrice', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Couldn't find 'thrice' in response")
+            self.assertTrue("abc: Couldn't find 'thrice' in response" in str(e))
 
         try:
             self.assertContains(response, 'thrice', 3)
         except AssertionError, e:
-            self.assertEquals(str(e), "Found 0 instances of 'thrice' in response (expected 3)")
+            self.assertTrue("Found 0 instances of 'thrice' in response (expected 3)" in str(e))
         try:
             self.assertContains(response, 'thrice', 3, msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Found 0 instances of 'thrice' in response (expected 3)")
+            self.assertTrue("abc: Found 0 instances of 'thrice' in response (expected 3)" in str(e))
 
     def test_unicode_contains(self):
         "Unicode characters can be found in template context"
@@ -140,12 +140,12 @@
         try:
             self.assertTemplateUsed(response, 'GET Template')
         except AssertionError, e:
-            self.assertEquals(str(e), "No templates used to render the response")
+            self.assertTrue("No templates used to render the response" in str(e))
 
         try:
             self.assertTemplateUsed(response, 'GET Template', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: No templates used to render the response")
+            self.assertTrue("abc: No templates used to render the response" in str(e))
 
     def test_single_context(self):
         "Template assertions work when there is a single context"
@@ -154,22 +154,22 @@
         try:
             self.assertTemplateNotUsed(response, 'Empty GET Template')
         except AssertionError, e:
-            self.assertEquals(str(e), "Template 'Empty GET Template' was used unexpectedly in rendering the response")
+            self.assertTrue("Template 'Empty GET Template' was used unexpectedly in rendering the response" in str(e))
 
         try:
             self.assertTemplateNotUsed(response, 'Empty GET Template', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Template 'Empty GET Template' was used unexpectedly in rendering the response")
+            self.assertTrue("abc: Template 'Empty GET Template' was used unexpectedly in rendering the response" in str(e))
 
         try:
             self.assertTemplateUsed(response, 'Empty POST Template')
         except AssertionError, e:
-            self.assertEquals(str(e), "Template 'Empty POST Template' was not a template used to render the response. Actual template(s) used: Empty GET Template")
+            self.assertTrue("Template 'Empty POST Template' was not a template used to render the response. Actual template(s) used: Empty GET Template" in str(e))
 
         try:
             self.assertTemplateUsed(response, 'Empty POST Template', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Template 'Empty POST Template' was not a template used to render the response. Actual template(s) used: Empty GET Template")
+            self.assertTrue("abc: Template 'Empty POST Template' was not a template used to render the response. Actual template(s) used: Empty GET Template" in str(e))
 
     def test_multiple_context(self):
         "Template assertions work when there are multiple contexts"
@@ -185,17 +185,17 @@
         try:
             self.assertTemplateNotUsed(response, "form_view.html")
         except AssertionError, e:
-            self.assertEquals(str(e), "Template 'form_view.html' was used unexpectedly in rendering the response")
+            self.assertTrue("Template 'form_view.html' was used unexpectedly in rendering the response" in str(e))
 
         try:
             self.assertTemplateNotUsed(response, 'base.html')
         except AssertionError, e:
-            self.assertEquals(str(e), "Template 'base.html' was used unexpectedly in rendering the response")
+            self.assertTrue("Template 'base.html' was used unexpectedly in rendering the response" in str(e))
 
         try:
             self.assertTemplateUsed(response, "Valid POST Template")
         except AssertionError, e:
-            self.assertEquals(str(e), "Template 'Valid POST Template' was not a template used to render the response. Actual template(s) used: form_view.html, base.html")
+            self.assertTrue("Template 'Valid POST Template' was not a template used to render the response. Actual template(s) used: form_view.html, base.html" in str(e))
 
 class AssertRedirectsTests(TestCase):
     def test_redirect_page(self):
@@ -205,12 +205,12 @@
         try:
             self.assertRedirects(response, '/test_client/get_view/')
         except AssertionError, e:
-            self.assertEquals(str(e), "Response didn't redirect as expected: Response code was 301 (expected 302)")
+            self.assertTrue("Response didn't redirect as expected: Response code was 301 (expected 302)" in str(e))
 
         try:
             self.assertRedirects(response, '/test_client/get_view/', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Response didn't redirect as expected: Response code was 301 (expected 302)")
+            self.assertTrue("abc: Response didn't redirect as expected: Response code was 301 (expected 302)" in str(e))
 
     def test_lost_query(self):
         "An assertion is raised if the redirect location doesn't preserve GET parameters"
@@ -218,12 +218,12 @@
         try:
             self.assertRedirects(response, '/test_client/get_view/')
         except AssertionError, e:
-            self.assertEquals(str(e), "Response redirected to 'http://testserver/test_client/get_view/?var=value', expected 'http://testserver/test_client/get_view/'")
+            self.assertTrue("Response redirected to 'http://testserver/test_client/get_view/?var=value', expected 'http://testserver/test_client/get_view/'" in str(e))
 
         try:
             self.assertRedirects(response, '/test_client/get_view/', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Response redirected to 'http://testserver/test_client/get_view/?var=value', expected 'http://testserver/test_client/get_view/'")
+            self.assertTrue("abc: Response redirected to 'http://testserver/test_client/get_view/?var=value', expected 'http://testserver/test_client/get_view/'" in str(e))
 
     def test_incorrect_target(self):
         "An assertion is raised if the response redirects to another target"
@@ -232,7 +232,7 @@
             # Should redirect to get_view
             self.assertRedirects(response, '/test_client/some_view/')
         except AssertionError, e:
-            self.assertEquals(str(e), "Response didn't redirect as expected: Response code was 301 (expected 302)")
+            self.assertTrue("Response didn't redirect as expected: Response code was 301 (expected 302)" in str(e))
 
     def test_target_page(self):
         "An assertion is raised if the response redirect target cannot be retrieved as expected"
@@ -241,13 +241,13 @@
             # The redirect target responds with a 301 code, not 200
             self.assertRedirects(response, 'http://testserver/test_client/permanent_redirect_view/')
         except AssertionError, e:
-            self.assertEquals(str(e), "Couldn't retrieve redirection page '/test_client/permanent_redirect_view/': response code was 301 (expected 200)")
+            self.assertTrue("Couldn't retrieve redirection page '/test_client/permanent_redirect_view/': response code was 301 (expected 200)" in str(e))
 
         try:
             # The redirect target responds with a 301 code, not 200
             self.assertRedirects(response, 'http://testserver/test_client/permanent_redirect_view/', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Couldn't retrieve redirection page '/test_client/permanent_redirect_view/': response code was 301 (expected 200)")
+            self.assertTrue("abc: Couldn't retrieve redirection page '/test_client/permanent_redirect_view/': response code was 301 (expected 200)" in str(e))
 
     def test_redirect_chain(self):
         "You can follow a redirect chain of multiple redirects"
@@ -338,12 +338,12 @@
         try:
             self.assertRedirects(response, '/test_client/get_view/')
         except AssertionError, e:
-            self.assertEquals(str(e), "Response didn't redirect as expected: Response code was 200 (expected 302)")
+            self.assertTrue("Response didn't redirect as expected: Response code was 200 (expected 302)" in str(e))
 
         try:
             self.assertRedirects(response, '/test_client/get_view/', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Response didn't redirect as expected: Response code was 200 (expected 302)")
+            self.assertTrue("abc: Response didn't redirect as expected: Response code was 200 (expected 302)" in str(e))
 
     def test_redirect_on_non_redirect_page(self):
         "An assertion is raised if the original page couldn't be retrieved as expected"
@@ -352,12 +352,12 @@
         try:
             self.assertRedirects(response, '/test_client/get_view/')
         except AssertionError, e:
-            self.assertEquals(str(e), "Response didn't redirect as expected: Response code was 200 (expected 302)")
+            self.assertTrue("Response didn't redirect as expected: Response code was 200 (expected 302)" in str(e))
 
         try:
             self.assertRedirects(response, '/test_client/get_view/', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEquals(str(e), "abc: Response didn't redirect as expected: Response code was 200 (expected 302)")
+            self.assertTrue("abc: Response didn't redirect as expected: Response code was 200 (expected 302)" in str(e))
 
 
 class AssertFormErrorTests(TestCase):
@@ -377,11 +377,11 @@
         try:
             self.assertFormError(response, 'wrong_form', 'some_field', 'Some error.')
         except AssertionError, e:
-            self.assertEqual(str(e), "The form 'wrong_form' was not used to render the response")
+            self.assertTrue("The form 'wrong_form' was not used to render the response" in str(e))
         try:
             self.assertFormError(response, 'wrong_form', 'some_field', 'Some error.', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEqual(str(e), "abc: The form 'wrong_form' was not used to render the response")
+            self.assertTrue("abc: The form 'wrong_form' was not used to render the response" in str(e))
 
     def test_unknown_field(self):
         "An assertion is raised if the field name is unknown"
@@ -399,11 +399,11 @@
         try:
             self.assertFormError(response, 'form', 'some_field', 'Some error.')
         except AssertionError, e:
-            self.assertEqual(str(e), "The form 'form' in context 0 does not contain the field 'some_field'")
+            self.assertTrue("The form 'form' in context 0 does not contain the field 'some_field'" in str(e))
         try:
             self.assertFormError(response, 'form', 'some_field', 'Some error.', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEqual(str(e), "abc: The form 'form' in context 0 does not contain the field 'some_field'")
+            self.assertTrue("abc: The form 'form' in context 0 does not contain the field 'some_field'" in str(e))
 
     def test_noerror_field(self):
         "An assertion is raised if the field doesn't have any errors"
@@ -421,11 +421,11 @@
         try:
             self.assertFormError(response, 'form', 'value', 'Some error.')
         except AssertionError, e:
-            self.assertEqual(str(e), "The field 'value' on form 'form' in context 0 contains no errors")
+            self.assertTrue("The field 'value' on form 'form' in context 0 contains no errors" in str(e))
         try:
             self.assertFormError(response, 'form', 'value', 'Some error.', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEqual(str(e), "abc: The field 'value' on form 'form' in context 0 contains no errors")
+            self.assertTrue("abc: The field 'value' on form 'form' in context 0 contains no errors" in str(e))
 
     def test_unknown_error(self):
         "An assertion is raised if the field doesn't contain the provided error"
@@ -443,11 +443,11 @@
         try:
             self.assertFormError(response, 'form', 'email', 'Some error.')
         except AssertionError, e:
-            self.assertEqual(str(e), "The field 'email' on form 'form' in context 0 does not contain the error 'Some error.' (actual errors: [u'Enter a valid e-mail address.'])")
+            self.assertTrue("The field 'email' on form 'form' in context 0 does not contain the error 'Some error.' (actual errors: [u'Enter a valid e-mail address.'])" in str(e))
         try:
             self.assertFormError(response, 'form', 'email', 'Some error.', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEqual(str(e), "abc: The field 'email' on form 'form' in context 0 does not contain the error 'Some error.' (actual errors: [u'Enter a valid e-mail address.'])")
+            self.assertTrue("abc: The field 'email' on form 'form' in context 0 does not contain the error 'Some error.' (actual errors: [u'Enter a valid e-mail address.'])" in str(e))
 
     def test_unknown_nonfield_error(self):
         """
@@ -468,11 +468,11 @@
         try:
             self.assertFormError(response, 'form', None, 'Some error.')
         except AssertionError, e:
-            self.assertEqual(str(e), "The form 'form' in context 0 does not contain the non-field error 'Some error.' (actual errors: )")
+            self.assertTrue("The form 'form' in context 0 does not contain the non-field error 'Some error.' (actual errors: )" in str(e))
         try:
             self.assertFormError(response, 'form', None, 'Some error.', msg_prefix='abc')
         except AssertionError, e:
-            self.assertEqual(str(e), "abc: The form 'form' in context 0 does not contain the non-field error 'Some error.' (actual errors: )")
+            self.assertTrue("abc: The form 'form' in context 0 does not contain the non-field error 'Some error.' (actual errors: )" in str(e))
 
 class LoginTests(TestCase):
     fixtures = ['testdata']
