def test_previous_versions(self):
textfile = VersionedTextFile(data=factory.make_string())
textfile.save()
textfiles = [textfile]
for _ in range(10):
textfile = textfile.update(factory.make_string())
textfiles.append(textfile)
for f in textfile.previous_versions():
self.assertTrue(f in textfiles)
def test_revert_zero_does_nothing(self):
textfile = VersionedTextFile(data=SAMPLE_TEXT)
textfile.save()
textfile_ids = [textfile.id]
for _ in range(10):
textfile = textfile.update(factory.make_string())
textfile_ids.append(textfile.id)
self.assertEquals(textfile, textfile.revert(0))
self.assertItemsEqual(textfile_ids,
[f.id for f in textfile.previous_versions()])