def test_dehydrate(self):
note = Note.objects.get(pk=1)
bundle = Bundle(obj=note)
# With no attribute or default, we should get ``None``.
field_1 = ApiField()
self.assertEqual(field_1.dehydrate(bundle), None)
# Still no attribute, so we should pick up the default
field_2 = ApiField(default=True)
self.assertEqual(field_2.dehydrate(bundle), True)
# Wrong attribute should yield default.
field_3 = ApiField(attribute='foo', default=True)
self.assertEqual(field_3.dehydrate(bundle), True)
# Wrong attribute should yield null.
field_4 = ApiField(attribute='foo', null=True)
self.assertEqual(field_4.dehydrate(bundle), None)
# Correct attribute.
field_5 = ApiField(attribute='title', default=True)
self.assertEqual(field_5.dehydrate(bundle), u'First Post!')
# Correct callable attribute.
field_6 = ApiField(attribute='what_time_is_it', default=True)
self.assertEqual(field_6.dehydrate(bundle), aware_datetime(2010, 4, 1, 0, 48))
