def test_numeric(self):
v = Validation.is_numeric("age")
self.assertTrue(v.is_valid(self.model)[0])
v = Validation.is_numeric("age", numtype="int")
self.model.age = "68.5"
self.assertFalse(v.is_valid(self.model)[0])
v = Validation.is_numeric("age", numtype="int", min=0, max=120)
self.model.age = -1
self.assertFalse(v.is_valid(self.model)[0])
self.model.age = 121
self.assertFalse(v.is_valid(self.model)[0])
self.model.age = 68
self.assertTrue(v.is_valid(self.model)[0])
self.model.age = None
self.assertFalse(v.is_valid(self.model)[0])
