def test_bridge_shall_draw_with_concrete_api_implementation(cls):
ci1 = DrawingAPI1()
ci2 = DrawingAPI2()
with patch.object(ci1,
'draw_circle') as mock_ci1_draw_circle, patch.object(
ci2, 'draw_circle') as mock_ci2_draw_circle:
sh1 = CircleShape(1, 2, 3, ci1)
sh1.draw()
cls.assertEqual(mock_ci1_draw_circle.call_count, 1)
sh2 = CircleShape(1, 2, 3, ci2)
sh2.draw()
cls.assertEqual(mock_ci2_draw_circle.call_count, 1)
def test_bridge_shall_scale_both_api_circles_with_own_implementation(cls):
SCALE_FACTOR = 2
CIRCLE1_RADIUS = 3
EXPECTED_CIRCLE1_RADIUS = 6
CIRCLE2_RADIUS = CIRCLE1_RADIUS * CIRCLE1_RADIUS
EXPECTED_CIRCLE2_RADIUS = CIRCLE2_RADIUS * SCALE_FACTOR
ci1 = DrawingAPI1()
ci2 = DrawingAPI2()
sh1 = CircleShape(1, 2, CIRCLE1_RADIUS, ci1)
sh2 = CircleShape(1, 2, CIRCLE2_RADIUS, ci2)
sh1.scale(SCALE_FACTOR)
sh2.scale(SCALE_FACTOR)
cls.assertEqual(sh1._radius, EXPECTED_CIRCLE1_RADIUS)
cls.assertEqual(sh2._radius, EXPECTED_CIRCLE2_RADIUS)
with patch.object(sh1, 'scale') as mock_sh1_scale_circle, patch.object(
sh2, 'scale') as mock_sh2_scale_circle:
sh1.scale(2)
sh2.scale(2)
cls.assertEqual(mock_sh1_scale_circle.call_count, 1)
cls.assertEqual(mock_sh2_scale_circle.call_count, 1)