def test_0_property(self):
"""Test that unbound Property objects can be created successfully"""
prop = Property()
self.assertIsNotNone(prop)
self.assertIsInstance(prop, Property)
self.assertIsInstance(type(prop), MetaProperty)
self.assertRegexpMatches(str(prop), r".*unbound.*", re.I)
roprop = Property(traits=['ro'])
self.assertIsNotNone(roprop)
self.assertIsInstance(roprop, ROProperty)
self.assertIsInstance(type(prop), MetaProperty)
roprop = ROProperty()
self.assertIsNotNone(roprop)
self.assertIsInstance(roprop, ROProperty)
lazyprop = Property(lazy=True)
self.assertIsInstance(lazyprop, LazyProperty)
self.assertFalse(isinstance(lazyprop, SafeProperty))
safelazyprop = Property(lazy=True, isa=str)
self.assertIsInstance(safelazyprop, LazyProperty)
self.assertIsInstance(safelazyprop, SafeProperty)
self.assertRaises(exc.LazyIsFalse, Property, lazy=False)
self.assertRaises(exc.CoerceWithoutType, Property, coerce=lambda x: 1)
class TrivialRecord(Record):
id = ROProperty()
name = Property()
class CheeseCupboardRecord(Record):
id = ROProperty(required=True, isa=int)
name = SafeProperty(isa=str)
best_cheese = SafeProperty(isa=CheeseRecord)
cheeses = ListProperty(of=CheeseRecord)
favorites = DictProperty(of=CheeseRecord)
