# Tests that the binary operation `op`, when applied to `self._def`,
# does not change its value.
- @unittest.skip('copy is not implemented')
def _test_binop_lhs_value_same(self, op, rhs):
- value_before = copy.copy(self._def)
+ value_before = copy.copy(self._def_value)
r, rv = self._binop(op, rhs)
self.assertEqual(self._def, value_before)