def test_fields_value_by_instance (self):
class Person (Entity):
firstname = Field(String)
surname = Field(String)
p1 = Person(firstname='Homer', surname='Simpson')
p2 = Person(firstname='Bart', surname='Simpson')
r = ReferenceMany()
r.bind_to_entity(Person)
self.assertFalse(p1 in r)
self.assertFalse(p2 in r)
r.set_data([p1])
self.assertTrue(p1 in r)
self.assertFalse(p2 in r)
self.assertEqual(r[0].firstname, 'Homer')
self.assertEqual(r[0].surname, 'Simpson')
r.set_data([p2])
self.assertFalse(p1 in r)
self.assertTrue(p2 in r)
self.assertEqual(r[0].firstname, 'Bart')
self.assertEqual(r[0].surname, 'Simpson')
r.append(p1)
self.assertTrue(p1 in r)
self.assertTrue(p2 in r)
self.assertEqual(r[0].firstname, 'Bart')
self.assertEqual(r[0].surname, 'Simpson')
self.assertEqual(r[1].firstname, 'Homer')
self.assertEqual(r[1].surname, 'Simpson')
def test_type_by_instance (self):
class Person (Entity):
firstname = Field(String)
surname = Field(String)
p = Person(firstname='Homer', surname='Simpson')
r = ReferenceMany()
r.bind_to_entity(Person)
r.set_data([p])
self.assertTrue(isinstance(r.get_data(), ReferenceMany))
self.assertTrue(isinstance(r[0], Entity))
