mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-12-26 18:06:18 +03:00
2c50723f14
To better follow conventional pytest style, this removes the outer wrapper class in favor of a function for some tests. These tests were picked as they are relatively simple and presented no barriers to a quick port. The assert* methods are replaced with assert statements. When necessary, a fixture is used to create a temporary directory. This commit does not convert the entire test suite to this style as some test classes use methods or other advanced features that are difficult to automatically convert. The goal is to address these issues in followup commits. Refs #4193
247 lines
7.6 KiB
Python
247 lines
7.6 KiB
Python
from PIL import Image, ImageFilter
|
|
|
|
from .helper import PillowTestCase
|
|
|
|
sample = Image.new("L", (7, 5))
|
|
# fmt: off
|
|
sample.putdata(sum([
|
|
[210, 50, 20, 10, 220, 230, 80],
|
|
[190, 210, 20, 180, 170, 40, 110],
|
|
[120, 210, 250, 60, 220, 0, 220],
|
|
[220, 40, 230, 80, 130, 250, 40],
|
|
[250, 0, 80, 30, 60, 20, 110],
|
|
], []))
|
|
# fmt: on
|
|
|
|
|
|
def test_imageops_box_blur():
|
|
i = sample.filter(ImageFilter.BoxBlur(1))
|
|
assert i.mode == sample.mode
|
|
assert i.size == sample.size
|
|
assert isinstance(i, Image.Image)
|
|
|
|
|
|
class TestBoxBlur(PillowTestCase):
|
|
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())
|
|
for data_row in data:
|
|
im_row = [next(it) for _ in range(im.size[0])]
|
|
if any(
|
|
abs(data_v - im_v) > delta for data_v, im_v in zip(data_row, im_row)
|
|
):
|
|
self.assertEqual(im_row, data_row)
|
|
self.assertRaises(StopIteration, next, it)
|
|
|
|
def assertBlur(self, im, radius, data, passes=1, delta=0):
|
|
# check grayscale image
|
|
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, passes).split():
|
|
self.assertImage(band, data, delta)
|
|
|
|
def test_color_modes(self):
|
|
self.assertRaises(ValueError, self.box_blur, sample.convert("1"))
|
|
self.assertRaises(ValueError, self.box_blur, sample.convert("P"))
|
|
self.box_blur(sample.convert("L"))
|
|
self.box_blur(sample.convert("LA"))
|
|
self.box_blur(sample.convert("LA").convert("La"))
|
|
self.assertRaises(ValueError, self.box_blur, sample.convert("I"))
|
|
self.assertRaises(ValueError, self.box_blur, sample.convert("F"))
|
|
self.box_blur(sample.convert("RGB"))
|
|
self.box_blur(sample.convert("RGBA"))
|
|
self.box_blur(sample.convert("RGBA").convert("RGBa"))
|
|
self.box_blur(sample.convert("CMYK"))
|
|
self.assertRaises(ValueError, self.box_blur, sample.convert("YCbCr"))
|
|
|
|
def test_radius_0(self):
|
|
self.assertBlur(
|
|
sample,
|
|
0,
|
|
[
|
|
# fmt: off
|
|
[210, 50, 20, 10, 220, 230, 80],
|
|
[190, 210, 20, 180, 170, 40, 110],
|
|
[120, 210, 250, 60, 220, 0, 220],
|
|
[220, 40, 230, 80, 130, 250, 40],
|
|
[250, 0, 80, 30, 60, 20, 110],
|
|
# fmt: on
|
|
],
|
|
)
|
|
|
|
def test_radius_0_02(self):
|
|
self.assertBlur(
|
|
sample,
|
|
0.02,
|
|
[
|
|
# fmt: off
|
|
[206, 55, 20, 17, 215, 223, 83],
|
|
[189, 203, 31, 171, 169, 46, 110],
|
|
[125, 206, 241, 69, 210, 13, 210],
|
|
[215, 49, 221, 82, 131, 235, 48],
|
|
[244, 7, 80, 32, 60, 27, 107],
|
|
# fmt: on
|
|
],
|
|
delta=2,
|
|
)
|
|
|
|
def test_radius_0_05(self):
|
|
self.assertBlur(
|
|
sample,
|
|
0.05,
|
|
[
|
|
# fmt: off
|
|
[202, 62, 22, 27, 209, 215, 88],
|
|
[188, 194, 44, 161, 168, 56, 111],
|
|
[131, 201, 229, 81, 198, 31, 198],
|
|
[209, 62, 209, 86, 133, 216, 59],
|
|
[237, 17, 80, 36, 60, 35, 103],
|
|
# fmt: on
|
|
],
|
|
delta=2,
|
|
)
|
|
|
|
def test_radius_0_1(self):
|
|
self.assertBlur(
|
|
sample,
|
|
0.1,
|
|
[
|
|
# fmt: off
|
|
[196, 72, 24, 40, 200, 203, 93],
|
|
[187, 183, 62, 148, 166, 68, 111],
|
|
[139, 193, 213, 96, 182, 54, 182],
|
|
[201, 78, 193, 91, 133, 191, 73],
|
|
[227, 31, 80, 42, 61, 47, 99],
|
|
# fmt: on
|
|
],
|
|
delta=1,
|
|
)
|
|
|
|
def test_radius_0_5(self):
|
|
self.assertBlur(
|
|
sample,
|
|
0.5,
|
|
[
|
|
# fmt: off
|
|
[176, 101, 46, 83, 163, 165, 111],
|
|
[176, 149, 108, 122, 144, 120, 117],
|
|
[164, 171, 159, 141, 134, 119, 129],
|
|
[170, 136, 133, 114, 116, 124, 109],
|
|
[184, 95, 72, 70, 69, 81, 89],
|
|
# fmt: on
|
|
],
|
|
delta=1,
|
|
)
|
|
|
|
def test_radius_1(self):
|
|
self.assertBlur(
|
|
sample,
|
|
1,
|
|
[
|
|
# fmt: off
|
|
[170, 109, 63, 97, 146, 153, 116],
|
|
[168, 142, 112, 128, 126, 143, 121],
|
|
[169, 166, 142, 149, 126, 131, 114],
|
|
[159, 156, 109, 127, 94, 117, 112],
|
|
[164, 128, 63, 87, 76, 89, 90],
|
|
# fmt: on
|
|
],
|
|
delta=1,
|
|
)
|
|
|
|
def test_radius_1_5(self):
|
|
self.assertBlur(
|
|
sample,
|
|
1.5,
|
|
[
|
|
# fmt: off
|
|
[155, 120, 105, 112, 124, 137, 130],
|
|
[160, 136, 124, 125, 127, 134, 130],
|
|
[166, 147, 130, 125, 120, 121, 119],
|
|
[168, 145, 119, 109, 103, 105, 110],
|
|
[168, 134, 96, 85, 85, 89, 97],
|
|
# fmt: on
|
|
],
|
|
delta=1,
|
|
)
|
|
|
|
def test_radius_bigger_then_half(self):
|
|
self.assertBlur(
|
|
sample,
|
|
3,
|
|
[
|
|
# fmt: off
|
|
[144, 145, 142, 128, 114, 115, 117],
|
|
[148, 145, 137, 122, 109, 111, 112],
|
|
[152, 145, 131, 117, 103, 107, 108],
|
|
[156, 144, 126, 111, 97, 102, 103],
|
|
[160, 144, 121, 106, 92, 98, 99],
|
|
# fmt: on
|
|
],
|
|
delta=1,
|
|
)
|
|
|
|
def test_radius_bigger_then_width(self):
|
|
self.assertBlur(
|
|
sample,
|
|
10,
|
|
[
|
|
[158, 153, 147, 141, 135, 129, 123],
|
|
[159, 153, 147, 141, 136, 130, 124],
|
|
[159, 154, 148, 142, 136, 130, 124],
|
|
[160, 154, 148, 142, 137, 131, 125],
|
|
[160, 155, 149, 143, 137, 131, 125],
|
|
],
|
|
delta=0,
|
|
)
|
|
|
|
def test_extreme_large_radius(self):
|
|
self.assertBlur(
|
|
sample,
|
|
600,
|
|
[
|
|
[162, 162, 162, 162, 162, 162, 162],
|
|
[162, 162, 162, 162, 162, 162, 162],
|
|
[162, 162, 162, 162, 162, 162, 162],
|
|
[162, 162, 162, 162, 162, 162, 162],
|
|
[162, 162, 162, 162, 162, 162, 162],
|
|
],
|
|
delta=1,
|
|
)
|
|
|
|
def test_two_passes(self):
|
|
self.assertBlur(
|
|
sample,
|
|
1,
|
|
[
|
|
# fmt: off
|
|
[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],
|
|
# fmt: on
|
|
],
|
|
passes=2,
|
|
delta=1,
|
|
)
|
|
|
|
def test_three_passes(self):
|
|
self.assertBlur(
|
|
sample,
|
|
1,
|
|
[
|
|
# fmt: off
|
|
[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],
|
|
# fmt: on
|
|
],
|
|
passes=3,
|
|
delta=1,
|
|
)
|