def test_filter(self):
class M(ModelBase):
attrs = dict(first_name=None, last_name=None)
m1 = M(first_name="trey", last_name=None)
m2 = M(first_name=None, last_name=None)
v = Validation.is_present("last_name").add_filter(lambda m: m.first_name is not None)
self.assertFalse(v.validate(m1))
self.assertTrue(v.validate(m2))
def test_is_present(self):
v = Validation.is_present("first_name")
self.assertTrue(v.is_valid(self.model)[0])
self.model.first_name = None
self.assertFalse(v.is_valid(self.model)[0])