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63 lines
2.2 KiB
Python
63 lines
2.2 KiB
Python
from PIL import Image, features
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from .helper import PillowTestCase, assert_image_equal, hopper
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class TestImageSplit(PillowTestCase):
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def test_split(self):
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def split(mode):
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layers = hopper(mode).split()
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return [(i.mode, i.size[0], i.size[1]) for i in layers]
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assert split("1") == [("1", 128, 128)]
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assert split("L") == [("L", 128, 128)]
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assert split("I") == [("I", 128, 128)]
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assert split("F") == [("F", 128, 128)]
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assert split("P") == [("P", 128, 128)]
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assert split("RGB") == [("L", 128, 128), ("L", 128, 128), ("L", 128, 128)]
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assert split("RGBA") == [
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("L", 128, 128),
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("L", 128, 128),
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("L", 128, 128),
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("L", 128, 128),
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]
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assert split("CMYK") == [
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("L", 128, 128),
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("L", 128, 128),
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("L", 128, 128),
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("L", 128, 128),
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]
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assert split("YCbCr") == [("L", 128, 128), ("L", 128, 128), ("L", 128, 128)]
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def test_split_merge(self):
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def split_merge(mode):
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return Image.merge(mode, hopper(mode).split())
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assert_image_equal(hopper("1"), split_merge("1"))
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assert_image_equal(hopper("L"), split_merge("L"))
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assert_image_equal(hopper("I"), split_merge("I"))
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assert_image_equal(hopper("F"), split_merge("F"))
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assert_image_equal(hopper("P"), split_merge("P"))
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assert_image_equal(hopper("RGB"), split_merge("RGB"))
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assert_image_equal(hopper("RGBA"), split_merge("RGBA"))
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assert_image_equal(hopper("CMYK"), split_merge("CMYK"))
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assert_image_equal(hopper("YCbCr"), split_merge("YCbCr"))
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def test_split_open(self):
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if features.check("zlib"):
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test_file = self.tempfile("temp.png")
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else:
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test_file = self.tempfile("temp.pcx")
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def split_open(mode):
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hopper(mode).save(test_file)
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with Image.open(test_file) as im:
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return len(im.split())
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assert split_open("1") == 1
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assert split_open("L") == 1
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assert split_open("P") == 1
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assert split_open("RGB") == 3
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if features.check("zlib"):
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assert split_open("RGBA") == 4
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