id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
17462	TestCollectionCachedStorage errors & failure on Windows	Karen Tracey	Karen Tracey	"I'm getting 10 errors running the staticfiles_tests on Windows. They're all related to the new !CachedStaticFilesStorage backend, and in fact all the same error (collectstatic called by setUp is failing), here's one example:
 
{{{
======================================================================
ERROR: test_cache_invalidation (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage)
----------------------------------------------------------------------
Traceback (most recent call last):
  File ""C:\Users\kmtracey\django\trunk\tests\regressiontests\staticfiles_tests\tests.py"", line 104, in setUp
    self.run_collectstatic()
  File ""C:\Users\kmtracey\django\trunk\tests\regressiontests\staticfiles_tests\tests.py"", line 115, in run_collectstatic
    ignore_patterns=['*.ignoreme'], **kwargs)
  File ""C:\Users\kmtracey\django\trunk\django\core\management\__init__.py"", line 146, in call_command
    return klass.execute(*args, **defaults)
  File ""C:\Users\kmtracey\django\trunk\django\core\management\base.py"", line 232, in execute
    output = self.handle(*args, **options)
  File ""C:\Users\kmtracey\django\trunk\django\core\management\base.py"", line 371, in handle
    return self.handle_noargs(**options)
  File ""C:\Users\kmtracey\django\trunk\django\contrib\staticfiles\management\commands\collectstatic.py"", line 131, in handle_noargs
    post_processed = self.storage.post_process(found_files, **options)
  File ""C:\Users\kmtracey\django\trunk\django\contrib\staticfiles\storage.py"", line 179, in post_process
    content = pattern.sub(converter, content)
  File ""C:\Users\kmtracey\django\trunk\django\contrib\staticfiles\storage.py"", line 142, in converter
    hashed_url = self.url(unquote(joined_result), force=True)
  File ""C:\Users\kmtracey\django\trunk\django\contrib\staticfiles\storage.py"", line 105, in url
    hashed_name = self.hashed_name(name)
  File ""C:\Users\kmtracey\django\trunk\django\contrib\staticfiles\storage.py"", line 74, in hashed_name
    (clean_name, self))
ValueError: The file 'img/window.png' could not be found with django.contrib.staticfiles.storage.CachedStaticFilesStorage object at 0x00000000039F83C8>.
}}}

This error can be fixed by splitting the file name passed to url_converter converter on `os.sep` instead of '/'.

However there is then still a failure:

{{{
test_cache_invalidation (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage) ... FAIL
test_path_with_fragment (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage) ... ok
test_path_with_querystring (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage) ... ok
test_template_tag_absolute (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage) ... ok
test_template_tag_deep_relative (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage) ... ok
test_template_tag_denorm (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage) ... ok
test_template_tag_relative (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage) ... ok
test_template_tag_return (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage) ... ok
test_template_tag_simple_content (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage) ... ok
test_template_tag_url (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage) ... ok

======================================================================
FAIL: test_cache_invalidation (regressiontests.staticfiles_tests.tests.TestCollectionCachedStorage)
----------------------------------------------------------------------
Traceback (most recent call last):
  File ""C:\Users\kmtracey\django\trunk\tests\regressiontests\staticfiles_tests\tests.py"", line 382, in test_cache_invali
dation
    self.assertEqual(self.cached_file_path(name), cached_name)
AssertionError: u'cached/styles.93b1147e8552.css' != u'cached\\styles.93b1147e8552.css'
- cached/styles.93b1147e8552.css
?       ^
+ cached\styles.93b1147e8552.css
?       ^


----------------------------------------------------------------------
Ran 10 tests in 4.152s

FAILED (failures=1)
Destroying test database for alias 'default' (':memory:')...
Destroying test database for alias 'other' (':memory:')...
}}}

This one is fixed by replacing backslashes with slashes in the hashed_name passed to `cache.set` in the url method of !CachedFilesMixin. (This is consistent with what is done in the post_process method.)

I'm going to check these fixes in but am opening this ticket as well so as to have a record of why they were made, and to have something to re-open if the fixes turn out not to be quite right. Setting as a release blocker since it seems the new function doesn't yet work properly on Windows."	Bug	closed	contrib.staticfiles	dev	Release blocker	fixed			Unreviewed	0	0	0	0	0	0