def test_iter(self):
schema = Schema()
subfield = Field()
topfield = Field()
schema.sub.field = subfield
schema.field = topfield
items = sorted(list(schema.__iter__()), key=lambda x: x[0])
assert items == [('field', topfield), ('sub', schema.sub)]
def test_setattr_field(self):
field = Field()
field.__setkey__ = MagicMock()
schema = Schema()
schema.field = field
assert field.__setkey__.called_once_with(schema, 'field')
assert schema._fields['field'] is field
def test_getattr(self):
schema = Schema()
field = Field()
schema.field = field
assert schema.field is field
