WSGIRequest should wrap the test client wsgi.input in LimitedStream

[Tom Christie]

The following piece of code...

BUFFER_SIZE = 16000

def example_view(request):
    ret = 'started read\n'
    buffer = request.read(BUFFER_SIZE)
    while buffer:
        ret += 'read %d bytes\n' % len(buffer)
        buffer = request.read(BUFFER_SIZE)
	ret += 'finished read\n'
    return HttpResponse(ret)

works fine under each of these cases...

• django trunk (1.3.0) / apache + mod_wsgi 3.2
• django trunk (1.3.0) / apache + mod_python 3.3.1
• django trunk (1.3.0) / development server

(Eg responds correctly both to GET requests and to PUT requests with content)

but fails when run with the test client, with:

AssertionError: Cannot read more than the available bytes from the HTTP incoming data.

It looks to me like WSGIRequest ought to wrap the test client wsgi.input stream in a LimitedStream wrapped in that same way that it would do for the development server.

Patch and test are attached.

[Tom Christie]

Ensure test client wsgi.input is wrapped in LimitedStream

[Tom Christie]

See #15785 for fixing the underlying problem.