def test_add_widget(self):
        self.container.add(Viewer(width=50, height=50))

        self.assertEqual(self.manager.width, 150 - 2*self.container.padding)
        self.assertEqual(self.manager.height, 50)

        self._test_content_position()
dataset/ETHPy150Open jorgecarleitao/pyglet-gui/tests/test_horizontal_container.py/TestHorizontalContainer.test_add_widget/operator `+` -> `-`