Fixes #8593 -- better handling of safe_join case sensitivity on windows. Thanks for the initial patch, ramiro.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16267 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/file_uploads/tests.py

@@ -278,6 +278,37 @@ class FileUploadTests(TestCase):
             # CustomUploadError is the error that should have been raised
             self.assertEqual(err.__class__, uploadhandler.CustomUploadError)
 
+    def test_filename_case_preservation(self):
+        """
+        The storage backend shouldn't mess with the case of the filenames
+        uploaded.
+        """
+        # Synthesize the contents of a file upload with a mixed case filename
+        # so we don't have to carry such a file in the Django tests source code
+        # tree.
+        vars = {'boundary': 'oUrBoUnDaRyStRiNg'}
+        post_data = [
+            '--%(boundary)s',
+            'Content-Disposition: form-data; name="file_field"; '
+                'filename="MiXeD_cAsE.txt"',
+            'Content-Type: application/octet-stream',
+            '',
+            'file contents\n'
+            '',
+            '--%(boundary)s--\r\n',
+        ]
+        response = self.client.post(
+            '/file_uploads/filename_case/',
+            '\r\n'.join(post_data) % vars,
+            'multipart/form-data; boundary=%(boundary)s' % vars
+        )
+        self.assertEqual(response.status_code, 200)
+        id = int(response.content)
+        obj = FileModel.objects.get(pk=id)
+        # The name of the file uploaded and the file stored in the server-side
+        # shouldn't differ.
+        self.assertEqual(os.path.basename(obj.testfile.path), 'MiXeD_cAsE.txt')
+
 class DirectoryCreationTests(unittest.TestCase):
     """
     Tests for error handling during directory creation