def test_is_valid_dual_scalar_bad_first_arg(self): self.assertFalse(constraints.is_valid_dual_scalar(['not_a_scalar', 0]))
def test_is_valid_dual_scalar_bad_second_arg(self): self.assertFalse(constraints.is_valid_dual_scalar([0, 'not_a_scalar']))
def test_is_valid_dual_scalar_successful(self): self.assertTrue(constraints.is_valid_dual_scalar([0, 0.0]))