def test_bad_character_empty_box(self): self.assertEqual(empty_box(3, 4, 3), sixth_box_expected)
def test_zero_height_empty_box(self): self.assertEqual(empty_box(0, 4, 'x'), fourth_box_expected)
def test_zero_width_empty_box(self): self.assertEqual(empty_box(3, 0, '$'), fifth_box_expected)
def test_empty_box(self): self.assertEqual(empty_box(3, 4, '*'), seventh_box_expected)