def test_filterFrame_emboss(self):
img = cv2.imread("Testing.jpg")
kernel = np.array([[0, -1, -1],
[1, 0, -1],
[1, 1, 0]])
img = cv2.filter2D(img, -1, kernel)
filter1 = FilterFrame(master=testFrame())
filter1._FilterFrame__emboss()
self.assertTrue(img.all() == filter1.filtered_image.all())
