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Assert getcolors does not return None

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This commit is contained in:
Andrew Murray 2025-06-28 14:19:27 +10:00
parent 8d31625ba8
commit cfaf356c33
2 changed files with 24 additions and 8 deletions
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24
Tests/test_file_png.py
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@ -229,7 +229,9 @@ class TestFilePng:
assert_image(im, "RGBA", (162, 150)) assert_image(im, "RGBA", (162, 150))
# image has 124 unique alpha values # image has 124 unique alpha values
assert len(im.getchannel("A").getcolors()) == 124 colors = im.getchannel("A").getcolors()
assert colors is not None
assert len(colors) == 124
def test_load_transparent_rgb(self) -> None: def test_load_transparent_rgb(self) -> None:
test_file = "Tests/images/rgb_trns.png" test_file = "Tests/images/rgb_trns.png"
@ -241,7 +243,9 @@ class TestFilePng:
assert_image(im, "RGBA", (64, 64)) assert_image(im, "RGBA", (64, 64))
# image has 876 transparent pixels # image has 876 transparent pixels
assert im.getchannel("A").getcolors()[0][0] == 876 colors = im.getchannel("A").getcolors()
assert colors is not None
assert colors[0][0] == 876
def test_save_p_transparent_palette(self, tmp_path: Path) -> None: def test_save_p_transparent_palette(self, tmp_path: Path) -> None:
in_file = "Tests/images/pil123p.png" in_file = "Tests/images/pil123p.png"
@ -262,7 +266,9 @@ class TestFilePng:
assert_image(im, "RGBA", (162, 150)) assert_image(im, "RGBA", (162, 150))
# image has 124 unique alpha values # image has 124 unique alpha values
assert len(im.getchannel("A").getcolors()) == 124 colors = im.getchannel("A").getcolors()
assert colors is not None
assert len(colors) == 124
def test_save_p_single_transparency(self, tmp_path: Path) -> None: def test_save_p_single_transparency(self, tmp_path: Path) -> None:
in_file = "Tests/images/p_trns_single.png" in_file = "Tests/images/p_trns_single.png"
@ -285,7 +291,9 @@ class TestFilePng:
assert im.getpixel((31, 31)) == (0, 255, 52, 0) assert im.getpixel((31, 31)) == (0, 255, 52, 0)
# image has 876 transparent pixels # image has 876 transparent pixels
assert im.getchannel("A").getcolors()[0][0] == 876 colors = im.getchannel("A").getcolors()
assert colors is not None
assert colors[0][0] == 876
def test_save_p_transparent_black(self, tmp_path: Path) -> None: def test_save_p_transparent_black(self, tmp_path: Path) -> None:
# check if solid black image with full transparency # check if solid black image with full transparency
@ -313,7 +321,9 @@ class TestFilePng:
assert im.info["transparency"] == 255 assert im.info["transparency"] == 255
im_rgba = im.convert("RGBA") im_rgba = im.convert("RGBA")
assert im_rgba.getchannel("A").getcolors()[0][0] == num_transparent colors = im_rgba.getchannel("A").getcolors()
assert colors is not None
assert colors[0][0] == num_transparent
test_file = tmp_path / "temp.png" test_file = tmp_path / "temp.png"
im.save(test_file) im.save(test_file)
@ -324,7 +334,9 @@ class TestFilePng:
assert_image_equal(im, test_im) assert_image_equal(im, test_im)
test_im_rgba = test_im.convert("RGBA") test_im_rgba = test_im.convert("RGBA")
assert test_im_rgba.getchannel("A").getcolors()[0][0] == num_transparent colors = test_im_rgba.getchannel("A").getcolors()
assert colors is not None
assert colors[0][0] == num_transparent
def test_save_rgb_single_transparency(self, tmp_path: Path) -> None: def test_save_rgb_single_transparency(self, tmp_path: Path) -> None:
in_file = "Tests/images/caption_6_33_22.png" in_file = "Tests/images/caption_6_33_22.png"

8
Tests/test_file_tga.py
View File

@ -274,13 +274,17 @@ def test_save_l_transparency(tmp_path: Path) -> None:
in_file = "Tests/images/la.tga" in_file = "Tests/images/la.tga"
with Image.open(in_file) as im: with Image.open(in_file) as im:
assert im.mode == "LA" assert im.mode == "LA"
assert im.getchannel("A").getcolors()[0][0] == num_transparent colors = im.getchannel("A").getcolors()
assert colors is not None
assert colors[0][0] == num_transparent
out = tmp_path / "temp.tga" out = tmp_path / "temp.tga"
im.save(out) im.save(out)
with Image.open(out) as test_im: with Image.open(out) as test_im:
assert test_im.mode == "LA" assert test_im.mode == "LA"
assert test_im.getchannel("A").getcolors()[0][0] == num_transparent colors = test_im.getchannel("A").getcolors()
assert colors is not None
assert colors[0][0] == num_transparent
assert_image_equal(im, test_im) assert_image_equal(im, test_im)