1 """

     2 Tests for file field behavior, and specifically #639, in which Model.save() gets

     3 called *again* for each FileField. This test will fail if calling an

     4 auto-manipulator's save() method causes Model.save() to be called more than once.

     5 """

     6 

     7 import os

     8 import unittest

     9 from regressiontests.bug639.models import Photo

    10 from django.http import QueryDict

    11 from django.utils.datastructures import MultiValueDict

    12 

    13 class Bug639Test(unittest.TestCase):

    14         

    15     def testBug639(self):

    16         """

    17         Simulate a file upload and check how many times Model.save() gets called.

    18         """

    19         # Grab an image for testing

    20         img = open(os.path.join(os.path.dirname(__file__), "test.jpg"), "rb").read()

    21         

    22         # Fake a request query dict with the file

    23         qd = QueryDict("title=Testing&image=", mutable=True)

    24         qd["image_file"] = {

    25             "filename" : "test.jpg",

    26             "content-type" : "image/jpeg",

    27             "content" : img

    28         }

    29         

    30         manip = Photo.AddManipulator()

    31         manip.do_html2python(qd)

    32         p = manip.save(qd)

    33         

    34         # Check the savecount stored on the object (see the model)

    35         self.assertEqual(p._savecount, 1)

    36         

    37     def tearDown(self):

    38         """

    39         Make sure to delete the "uploaded" file to avoid clogging /tmp.

    40         """

    41         p = Photo.objects.get()

    42         os.unlink(p.get_image_filename())