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203 lines
7.8 KiB
Python
203 lines
7.8 KiB
Python
import pytest
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from PIL import Image, ImageColor
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def test_hash():
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# short 3 components
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assert (255, 0, 0) == ImageColor.getrgb("#f00")
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assert (0, 255, 0) == ImageColor.getrgb("#0f0")
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assert (0, 0, 255) == ImageColor.getrgb("#00f")
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# short 4 components
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assert (255, 0, 0, 0) == ImageColor.getrgb("#f000")
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assert (0, 255, 0, 0) == ImageColor.getrgb("#0f00")
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assert (0, 0, 255, 0) == ImageColor.getrgb("#00f0")
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assert (0, 0, 0, 255) == ImageColor.getrgb("#000f")
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# long 3 components
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assert (222, 0, 0) == ImageColor.getrgb("#de0000")
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assert (0, 222, 0) == ImageColor.getrgb("#00de00")
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assert (0, 0, 222) == ImageColor.getrgb("#0000de")
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# long 4 components
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assert (222, 0, 0, 0) == ImageColor.getrgb("#de000000")
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assert (0, 222, 0, 0) == ImageColor.getrgb("#00de0000")
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assert (0, 0, 222, 0) == ImageColor.getrgb("#0000de00")
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assert (0, 0, 0, 222) == ImageColor.getrgb("#000000de")
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# case insensitivity
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assert ImageColor.getrgb("#DEF") == ImageColor.getrgb("#def")
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assert ImageColor.getrgb("#CDEF") == ImageColor.getrgb("#cdef")
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assert ImageColor.getrgb("#DEFDEF") == ImageColor.getrgb("#defdef")
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assert ImageColor.getrgb("#CDEFCDEF") == ImageColor.getrgb("#cdefcdef")
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# not a number
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with pytest.raises(ValueError):
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ImageColor.getrgb("#fo0")
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with pytest.raises(ValueError):
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ImageColor.getrgb("#fo00")
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with pytest.raises(ValueError):
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ImageColor.getrgb("#fo0000")
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with pytest.raises(ValueError):
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ImageColor.getrgb("#fo000000")
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# wrong number of components
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with pytest.raises(ValueError):
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ImageColor.getrgb("#f0000")
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with pytest.raises(ValueError):
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ImageColor.getrgb("#f000000")
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with pytest.raises(ValueError):
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ImageColor.getrgb("#f00000000")
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with pytest.raises(ValueError):
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ImageColor.getrgb("#f000000000")
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with pytest.raises(ValueError):
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ImageColor.getrgb("#f00000 ")
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def test_colormap():
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assert (0, 0, 0) == ImageColor.getrgb("black")
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assert (255, 255, 255) == ImageColor.getrgb("white")
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assert (255, 255, 255) == ImageColor.getrgb("WHITE")
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with pytest.raises(ValueError):
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ImageColor.getrgb("black ")
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def test_functions():
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# rgb numbers
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assert (255, 0, 0) == ImageColor.getrgb("rgb(255,0,0)")
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assert (0, 255, 0) == ImageColor.getrgb("rgb(0,255,0)")
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assert (0, 0, 255) == ImageColor.getrgb("rgb(0,0,255)")
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# percents
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assert (255, 0, 0) == ImageColor.getrgb("rgb(100%,0%,0%)")
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assert (0, 255, 0) == ImageColor.getrgb("rgb(0%,100%,0%)")
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assert (0, 0, 255) == ImageColor.getrgb("rgb(0%,0%,100%)")
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# rgba numbers
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assert (255, 0, 0, 0) == ImageColor.getrgb("rgba(255,0,0,0)")
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assert (0, 255, 0, 0) == ImageColor.getrgb("rgba(0,255,0,0)")
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assert (0, 0, 255, 0) == ImageColor.getrgb("rgba(0,0,255,0)")
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assert (0, 0, 0, 255) == ImageColor.getrgb("rgba(0,0,0,255)")
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assert (255, 0, 0) == ImageColor.getrgb("hsl(0,100%,50%)")
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assert (255, 0, 0) == ImageColor.getrgb("hsl(360,100%,50%)")
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assert (0, 255, 255) == ImageColor.getrgb("hsl(180,100%,50%)")
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assert (255, 0, 0) == ImageColor.getrgb("hsv(0,100%,100%)")
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assert (255, 0, 0) == ImageColor.getrgb("hsv(360,100%,100%)")
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assert (0, 255, 255) == ImageColor.getrgb("hsv(180,100%,100%)")
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# alternate format
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assert ImageColor.getrgb("hsb(0,100%,50%)") == ImageColor.getrgb("hsv(0,100%,50%)")
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# floats
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assert (254, 3, 3) == ImageColor.getrgb("hsl(0.1,99.2%,50.3%)")
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assert (255, 0, 0) == ImageColor.getrgb("hsl(360.,100.0%,50%)")
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assert (253, 2, 2) == ImageColor.getrgb("hsv(0.1,99.2%,99.3%)")
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assert (255, 0, 0) == ImageColor.getrgb("hsv(360.,100.0%,100%)")
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# case insensitivity
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assert ImageColor.getrgb("RGB(255,0,0)") == ImageColor.getrgb("rgb(255,0,0)")
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assert ImageColor.getrgb("RGB(100%,0%,0%)") == ImageColor.getrgb("rgb(100%,0%,0%)")
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assert ImageColor.getrgb("RGBA(255,0,0,0)") == ImageColor.getrgb("rgba(255,0,0,0)")
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assert ImageColor.getrgb("HSL(0,100%,50%)") == ImageColor.getrgb("hsl(0,100%,50%)")
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assert ImageColor.getrgb("HSV(0,100%,50%)") == ImageColor.getrgb("hsv(0,100%,50%)")
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assert ImageColor.getrgb("HSB(0,100%,50%)") == ImageColor.getrgb("hsb(0,100%,50%)")
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# space agnosticism
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assert (255, 0, 0) == ImageColor.getrgb("rgb( 255 , 0 , 0 )")
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assert (255, 0, 0) == ImageColor.getrgb("rgb( 100% , 0% , 0% )")
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assert (255, 0, 0, 0) == ImageColor.getrgb("rgba( 255 , 0 , 0 , 0 )")
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assert (255, 0, 0) == ImageColor.getrgb("hsl( 0 , 100% , 50% )")
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assert (255, 0, 0) == ImageColor.getrgb("hsv( 0 , 100% , 100% )")
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# wrong number of components
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with pytest.raises(ValueError):
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ImageColor.getrgb("rgb(255,0)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("rgb(255,0,0,0)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("rgb(100%,0%)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("rgb(100%,0%,0)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("rgb(100%,0%,0 %)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("rgb(100%,0%,0%,0%)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("rgba(255,0,0)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("rgba(255,0,0,0,0)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("hsl(0,100%)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("hsl(0,100%,0%,0%)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("hsl(0%,100%,50%)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("hsl(0,100,50%)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("hsl(0,100%,50)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("hsv(0,100%)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("hsv(0,100%,0%,0%)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("hsv(0%,100%,50%)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("hsv(0,100,50%)")
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with pytest.raises(ValueError):
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ImageColor.getrgb("hsv(0,100%,50)")
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# look for rounding errors (based on code by Tim Hatch)
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def test_rounding_errors():
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for color in ImageColor.colormap:
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expected = Image.new("RGB", (1, 1), color).convert("L").getpixel((0, 0))
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actual = ImageColor.getcolor(color, "L")
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assert expected == actual
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assert (0, 255, 115) == ImageColor.getcolor("rgba(0, 255, 115, 33)", "RGB")
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Image.new("RGB", (1, 1), "white")
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assert (0, 0, 0, 255) == ImageColor.getcolor("black", "RGBA")
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assert (255, 255, 255, 255) == ImageColor.getcolor("white", "RGBA")
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assert (0, 255, 115, 33) == ImageColor.getcolor("rgba(0, 255, 115, 33)", "RGBA")
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Image.new("RGBA", (1, 1), "white")
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assert 0 == ImageColor.getcolor("black", "L")
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assert 255 == ImageColor.getcolor("white", "L")
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assert 163 == ImageColor.getcolor("rgba(0, 255, 115, 33)", "L")
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Image.new("L", (1, 1), "white")
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assert 0 == ImageColor.getcolor("black", "1")
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assert 255 == ImageColor.getcolor("white", "1")
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# The following test is wrong, but is current behavior
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# The correct result should be 255 due to the mode 1
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assert 163 == ImageColor.getcolor("rgba(0, 255, 115, 33)", "1")
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# Correct behavior
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# assert
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# 255, ImageColor.getcolor("rgba(0, 255, 115, 33)", "1"))
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Image.new("1", (1, 1), "white")
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assert (0, 255) == ImageColor.getcolor("black", "LA")
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assert (255, 255) == ImageColor.getcolor("white", "LA")
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assert (163, 33) == ImageColor.getcolor("rgba(0, 255, 115, 33)", "LA")
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Image.new("LA", (1, 1), "white")
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def test_color_too_long():
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# Arrange
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color_too_long = "hsl(" + "1" * 40 + "," + "1" * 40 + "%," + "1" * 40 + "%)"
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# Act / Assert
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with pytest.raises(ValueError):
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ImageColor.getrgb(color_too_long)
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