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test for multiple passes

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This commit is contained in:
homm 2014-10-19 20:56:14 +04:00
parent c1eb77a4ed
commit f477cab940
1 changed files with 33 additions and 5 deletions
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38
Tests/test_box_blur.py
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@ -24,8 +24,8 @@ class TestBoxBlurApi(PillowTestCase):
class TestBoxBlur(PillowTestCase):
def box_blur(self, image, radius=1):
return image._new(image.im.box_blur(radius))
def box_blur(self, image, radius=1, n=1):
return image._new(image.im.box_blur(radius, n))
def assertImage(self, im, data, delta=0):
it = iter(im.getdata())
@ -38,11 +38,11 @@ class TestBoxBlur(PillowTestCase):
self.assertEqual(im_row, data_row)
self.assertRaises(StopIteration, next, it)
def assertBlur(self, im, radius, data, delta=0):
def assertBlur(self, im, radius, data, passes=1, delta=0):
# check grayscale image
self.assertImage(self.box_blur(im, radius), data, delta)
self.assertImage(self.box_blur(im, radius, passes), data, delta)
rgba = Image.merge('RGBA', (im, im, im, im))
for band in self.box_blur(rgba, radius).split():
for band in self.box_blur(rgba, radius, passes).split():
self.assertImage(band, data, delta)
def test_color_modes(self):
@ -185,3 +185,31 @@ class TestBoxBlur(PillowTestCase):
],
delta=1,
)
def test_two_passes(self):
self.assertBlur(
sample, 1,
[
[153, 123, 102, 109, 132, 135, 129],
[159, 138, 123, 121, 133, 131, 126],
[162, 147, 136, 124, 127, 121, 121],
[159, 140, 125, 108, 111, 106, 108],
[154, 126, 105, 87, 94, 93, 97],
],
passes=2,
delta=1,
)
def test_three_passes(self):
self.assertBlur(
sample, 1,
[
[146, 131, 116, 118, 126, 131, 130],
[151, 138, 125, 123, 126, 128, 127],
[154, 143, 129, 123, 120, 120, 119],
[152, 139, 122, 113, 108, 108, 108],
[148, 132, 112, 102, 97, 99, 100],
],
passes=3,
delta=1,
)