def test_rejects_invalid_ordering(self):
form = ExperimentOrderingForm({"ordering": "invalid ordering"})
self.assertFalse(form.is_valid())
def test_accepts_valid_ordering(self):
ordering = ExperimentOrderingForm.ORDERING_CHOICES[1][0]
form = ExperimentOrderingForm({"ordering": ordering})
self.assertTrue(form.is_valid())