def test_altered_default(self):
"""FieldMorpher with default set should apply it"""
func = lambda x, y: (str(x), float(y) - 0.5)
fm = FieldMorpher({"3": str, 4: int}, func)
# check that recognized values aren't tampered with
self.assertEqual(fm({3: 3, 4: "4"}), {"3": "3", 4: 4})
# check that unrecognized values get the appropriate conversion
self.assertEqual(fm({3: 3, 5: "5"}), {"3": "3", "5": 4.5})
def test_default_error(self):
"""FieldMorpher default should raise FieldError on unknown fields"""
fm = FieldMorpher({"a": int, "b": str})
self.assertRaises(FieldError, fm, {"a": "3", "b": 456, "c": "4"})
def test_default(self):
"""FieldMorpher default should use correct constructors"""
fm = FieldMorpher({"a": int, "b": str})
self.assertEqual(fm({"a": "3", "b": 456}), {"a": 3, "b": "456"})