def test_bound_descriptor_proxies_to_xq_descriptor(self):
descriptor = unittest.mock.Mock()
bd = xso_query.BoundDescriptor(
unittest.mock.sentinel.class_,
descriptor,
unittest.mock.sentinel.expr_class,
)
self.assertEqual(bd.foo, descriptor.foo)
descriptor.foo = "fnord"
self.assertEqual(bd.foo, descriptor.foo)
del descriptor.foo
with self.assertRaises(AttributeError):
bd.foo
def test_xq_instantiate_with_extra_args(self):
expr = unittest.mock.sentinel.expr
class_ = unittest.mock.Mock()
expr_class = unittest.mock.Mock()
bd = xso_query.BoundDescriptor(
class_,
unittest.mock.sentinel.descriptor,
expr_class,
expr_kwargs={"mapping_type": unittest.mock.sentinel.mt})
result = bd.xq_instantiate(expr)
class_.xq_instantiate.assert_called_with(expr)
expr_class.assert_called_with(class_.xq_instantiate(),
unittest.mock.sentinel.descriptor,
mapping_type=unittest.mock.sentinel.mt)
self.assertEqual(result, expr_class())
def test_init(self):
bd = xso_query.BoundDescriptor(
unittest.mock.sentinel.class_,
unittest.mock.sentinel.descriptor,
unittest.mock.sentinel.expr_class,
)
self.assertEqual(
bd.xq_xso_class,
unittest.mock.sentinel.class_,
)
self.assertEqual(
bd.xq_descriptor,
unittest.mock.sentinel.descriptor,
)
self.assertEqual(
bd.xq_expr_class,
unittest.mock.sentinel.expr_class,
)
def test_xq_instantiate(self):
expr = unittest.mock.sentinel.expr
class_ = unittest.mock.Mock()
expr_class = unittest.mock.Mock()
bd = xso_query.BoundDescriptor(
class_,
unittest.mock.sentinel.descriptor,
expr_class,
)
result = bd.xq_instantiate(expr)
class_.xq_instantiate.assert_called_with(expr)
expr_class.assert_called_with(
class_.xq_instantiate(),
unittest.mock.sentinel.descriptor,
)
self.assertEqual(result, expr_class())
def test_as_expr_recursively_resolves_lhses(self):
new_lhs = unittest.mock.sentinel.new_lhs
cls = xso_query.Class()
descriptor = xso_query.BoundDescriptor(
cls,
unittest.mock.sentinel.descriptor,
xso_query.GetDescriptor,
)
result = xso_query.as_expr(descriptor, lhs=new_lhs)
self.assertIsInstance(
result,
xso_query.GetDescriptor,
)
self.assertEqual(
result.descriptor,
unittest.mock.sentinel.descriptor,
)
self.assertIsInstance(
result.expr,
xso_query.GetInstances,
)
self.assertEqual(
result.expr.class_,
cls,
)
self.assertEqual(
result.expr.expr,
new_lhs,
)