def test_gray_block(self):
self.im.putpixel((
0,
0,
), tuple(self.white))
self.im.putpixel((
0,
1,
), tuple(self.white))
out = get_avg_for_em(self.px, 0, 0, 2, 2)
self.assertColor(out, self.gray)
out = get_avg_for_em(self.px, 2, 0, 2, 2)
self.assertColor(out, self.black)
out = get_avg_for_em(self.px, 0, 2, 2, 2)
self.assertColor(out, self.black)
out = get_avg_for_em(self.px, 2, 2, 2, 2)
self.assertColor(out, self.black)
def test_default_black_block(self):
out = get_avg_for_em(self.px, 0, 0, 2, 2)
self.assertColor(out, self.black)
out = get_avg_for_em(self.px, 2, 0, 2, 2)
self.assertColor(out, self.black)
out = get_avg_for_em(self.px, 0, 2, 2, 2)
self.assertColor(out, self.black)
out = get_avg_for_em(self.px, 2, 2, 2, 2)
self.assertColor(out, self.black)
def test_separate_color_channels(self):
color1 = (
0,
128,
255,
)
color2 = (
255,
128,
0,
)
self.im.putpixel((
0,
0,
), color1)
self.im.putpixel((
1,
0,
), color1)
self.im.putpixel((
0,
1,
), color1)
self.im.putpixel((
1,
1,
), color1)
self.im.putpixel((
2,
0,
), color1)
self.im.putpixel((
3,
0,
), color1)
self.im.putpixel((
2,
1,
), color2)
self.im.putpixel((
3,
1,
), color2)
out = get_avg_for_em(self.px, 0, 0, 2, 2)
self.assertColor(out, list(color1))
out = get_avg_for_em(self.px, 2, 0, 2, 2)
self.assertColor(out, self.gray)
out = get_avg_for_em(self.px, 0, 2, 2, 2)
self.assertColor(out, self.black)
out = get_avg_for_em(self.px, 2, 2, 2, 2)
self.assertColor(out, self.black)
