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Parametrized test

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This commit is contained in:
Andrew Murray 2021-03-23 20:08:18 +11:00
parent 8913166c7e
commit 4a0698838d
1 changed files with 13 additions and 16 deletions
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29
Tests/test_imageops.py
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@ -388,21 +388,18 @@ def test_autocontrast_preserve_gradient():
assert_image_equal(img, out)
def test_autocontrast_preserve_onecolor():
def _test_one_color(color):
img = Image.new("RGB", (10, 10), color)
@pytest.mark.parametrize(
"color", ((255, 255, 255), (127, 255, 0), (127, 127, 127), (0, 0, 0))
)
def test_autocontrast_preserve_one_color(color):
img = Image.new("RGB", (10, 10), color)
# single color images shouldn't change
out = ImageOps.autocontrast(img, cutoff=0, preserve_tone=True)
assert_image_equal(img, out) # single color, no cutoff
# single color images shouldn't change
out = ImageOps.autocontrast(img, cutoff=0, preserve_tone=True)
assert_image_equal(img, out) # single color, no cutoff
# even if there is a cutoff
out = ImageOps.autocontrast(
img, cutoff=0, preserve_tone=True
) # single color 10 cutoff
assert_image_equal(img, out)
_test_one_color((255, 255, 255))
_test_one_color((127, 255, 0))
_test_one_color((127, 127, 127))
_test_one_color((0, 0, 0))
# even if there is a cutoff
out = ImageOps.autocontrast(
img, cutoff=0, preserve_tone=True
) # single color 10 cutoff
assert_image_equal(img, out)