import sys from helper import unittest, PillowTestCase from PIL import Image X = 255 class TestLibPack(PillowTestCase): def assert_pack(self, mode, rawmode, data, *pixels): """ data - either raw bytes with data or just number of bytes in rawmode. """ im = Image.new(mode, (len(pixels), 1)) for x, pixel in enumerate(pixels): im.putpixel((x, 0), pixel) if isinstance(data, (int)): data_len = data * len(pixels) data = bytes(bytearray(range(1, data_len + 1))) self.assertEqual(data, im.tobytes("raw", rawmode)) def test_1(self): self.assert_pack("1", "1", b'\x01', 0,0,0,0,0,0,0,X) self.assert_pack("1", "1;I", b'\x01', X,X,X,X,X,X,X,0) self.assert_pack("1", "1;R", b'\x01', X,0,0,0,0,0,0,0) self.assert_pack("1", "1;IR", b'\x01', 0,X,X,X,X,X,X,X) self.assert_pack("1", "1", b'\xaa', X,0,X,0,X,0,X,0) self.assert_pack("1", "1;I", b'\xaa', 0,X,0,X,0,X,0,X) self.assert_pack("1", "1;R", b'\xaa', 0,X,0,X,0,X,0,X) self.assert_pack("1", "1;IR", b'\xaa', X,0,X,0,X,0,X,0) self.assert_pack("1", "L", b'\xff\x00\x00\xff\x00\x00', X,0,0,X,0,0) def test_L(self): self.assert_pack("L", "L", 1, 1,2,3,4) self.assert_pack("L", "L;16", b'\x00\xc6\x00\xaf', 198, 175) self.assert_pack("L", "L;16B", b'\xc6\x00\xaf\x00', 198, 175) def test_LA(self): self.assert_pack("LA", "LA", 2, (1,2), (3,4), (5,6)) self.assert_pack("LA", "LA;L", 2, (1,4), (2,5), (3,6)) def test_P(self): self.assert_pack("P", "P;1", b'\xe4', 1, 1, 1, 0, 0, 255, 0, 0) self.assert_pack("P", "P;2", b'\xe4', 3, 2, 1, 0) self.assert_pack("P", "P;4", b'\x02\xef', 0, 2, 14, 15) self.assert_pack("P", "P", 1, 1, 2, 3, 4) def test_PA(self): self.assert_pack("PA", "PA", 2, (1,2), (3,4), (5,6)) self.assert_pack("PA", "PA;L", 2, (1,4), (2,5), (3,6)) def test_RGB(self): self.assert_pack("RGB", "RGB", 3, (1,2,3), (4,5,6), (7,8,9)) self.assert_pack("RGB", "RGBX", b'\x01\x02\x03\xff\x05\x06\x07\xff', (1,2,3), (5,6,7)) self.assert_pack("RGB", "XRGB", b'\x00\x02\x03\x04\x00\x06\x07\x08', (2,3,4), (6,7,8)) self.assert_pack("RGB", "BGR", 3, (3,2,1), (6,5,4), (9,8,7)) self.assert_pack("RGB", "BGRX", b'\x01\x02\x03\x00\x05\x06\x07\x00', (3,2,1), (7,6,5)) self.assert_pack("RGB", "XBGR", b'\x00\x02\x03\x04\x00\x06\x07\x08', (4,3,2), (8,7,6)) self.assert_pack("RGB", "RGB;L", 3, (1,4,7), (2,5,8), (3,6,9)) self.assert_pack("RGB", "R", 1, (1,9,9), (2,9,9), (3,9,9)) self.assert_pack("RGB", "G", 1, (9,1,9), (9,2,9), (9,3,9)) self.assert_pack("RGB", "B", 1, (9,9,1), (9,9,2), (9,9,3)) def test_RGBA(self): self.assert_pack("RGBA", "RGBA", 4, (1,2,3,4), (5,6,7,8), (9,10,11,12)) self.assert_pack("RGBA", "RGBA;L", 4, (1,4,7,10), (2,5,8,11), (3,6,9,12)) self.assert_pack("RGBA", "RGB", 3, (1,2,3,14), (4,5,6,15), (7,8,9,16)) self.assert_pack("RGBA", "BGR", 3, (3,2,1,14), (6,5,4,15), (9,8,7,16)) self.assert_pack("RGBA", "BGRA", 4, (3,2,1,4), (7,6,5,8), (11,10,9,12)) self.assert_pack("RGBA", "ABGR", 4, (4,3,2,1), (8,7,6,5), (12,11,10,9)) self.assert_pack("RGBA", "BGRa", 4, (191,127,63,4), (223,191,159,8), (233,212,191,12)) self.assert_pack("RGBA", "R", 1, (1,0,8,9), (2,0,8,9), (3,0,8,0)) self.assert_pack("RGBA", "G", 1, (6,1,8,9), (6,2,8,9), (6,3,8,9)) self.assert_pack("RGBA", "B", 1, (6,7,1,9), (6,7,2,0), (6,7,3,9)) self.assert_pack("RGBA", "A", 1, (6,7,0,1), (6,7,0,2), (0,7,0,3)) def test_RGBa(self): self.assert_pack("RGBa", "RGBa", 4, (1,2,3,4), (5,6,7,8), (9,10,11,12)) self.assert_pack("RGBa", "BGRa", 4, (3,2,1,4), (7,6,5,8), (11,10,9,12)) self.assert_pack("RGBa", "aBGR", 4, (4,3,2,1), (8,7,6,5), (12,11,10,9)) def test_RGBX(self): self.assert_pack("RGBX", "RGBX", 4, (1,2,3,4), (5,6,7,8), (9,10,11,12)) self.assert_pack("RGBX", "RGBX;L", 4, (1,4,7,10), (2,5,8,11), (3,6,9,12)) self.assert_pack("RGBX", "RGB", 3, (1,2,3,X), (4,5,6,X), (7,8,9,X)) self.assert_pack("RGBX", "BGR", 3, (3,2,1,X), (6,5,4,X), (9,8,7,X)) self.assert_pack("RGBX", "BGRX", b'\x01\x02\x03\x00\x05\x06\x07\x00\t\n\x0b\x00', (3,2,1,X), (7,6,5,X), (11,10,9,X)) self.assert_pack("RGBX", "XBGR", b'\x00\x02\x03\x04\x00\x06\x07\x08\x00\n\x0b\x0c', (4,3,2,X), (8,7,6,X), (12,11,10,X)) self.assert_pack("RGBX", "R", 1, (1,0,8,9), (2,0,8,9), (3,0,8,0)) self.assert_pack("RGBX", "G", 1, (6,1,8,9), (6,2,8,9), (6,3,8,9)) self.assert_pack("RGBX", "B", 1, (6,7,1,9), (6,7,2,0), (6,7,3,9)) self.assert_pack("RGBX", "X", 1, (6,7,0,1), (6,7,0,2), (0,7,0,3)) def test_CMYK(self): self.assert_pack("CMYK", "CMYK", 4, (1,2,3,4), (5,6,7,8), (9,10,11,12)) self.assert_pack("CMYK", "CMYK;I", 4, (254,253,252,251), (250,249,248,247), (246,245,244,243)) self.assert_pack("CMYK", "CMYK;L", 4, (1,4,7,10), (2,5,8,11), (3,6,9,12)) self.assert_pack("CMYK", "K", 1, (6,7,0,1), (6,7,0,2), (0,7,0,3)) def test_YCbCr(self): self.assert_pack("YCbCr", "YCbCr", 3, (1,2,3), (4,5,6), (7,8,9)) self.assert_pack("YCbCr", "YCbCr;L", 3, (1,4,7), (2,5,8), (3,6,9)) self.assert_pack("YCbCr", "YCbCrX", b'\x01\x02\x03\xff\x05\x06\x07\xff\t\n\x0b\xff', (1,2,3), (5,6,7), (9,10,11)) self.assert_pack("YCbCr", "YCbCrK", b'\x01\x02\x03\xff\x05\x06\x07\xff\t\n\x0b\xff', (1,2,3), (5,6,7), (9,10,11)) self.assert_pack("YCbCr", "Y", 1, (1,0,8,9), (2,0,8,9), (3,0,8,0)) self.assert_pack("YCbCr", "Cb", 1, (6,1,8,9), (6,2,8,9), (6,3,8,9)) self.assert_pack("YCbCr", "Cr", 1, (6,7,1,9), (6,7,2,0), (6,7,3,9)) def test_LAB(self): self.assert_pack("LAB", "LAB", 3, (1,130,131), (4,133,134), (7,136,137)) self.assert_pack("LAB", "L", 1, (1,9,9), (2,9,9), (3,9,9)) self.assert_pack("LAB", "A", 1, (9,1,9), (9,2,9), (9,3,9)) self.assert_pack("LAB", "B", 1, (9,9,1), (9,9,2), (9,9,3)) def test_HSV(self): self.assert_pack("HSV", "HSV", 3, (1,2,3), (4,5,6), (7,8,9)) self.assert_pack("HSV", "H", 1, (1,9,9), (2,9,9), (3,9,9)) self.assert_pack("HSV", "S", 1, (9,1,9), (9,2,9), (9,3,9)) self.assert_pack("HSV", "V", 1, (9,9,1), (9,9,2), (9,9,3)) def test_I(self): self.assert_pack("I", "I;16B", 2, 0x0102, 0x0304) self.assert_pack("I", "I;32S", b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999) if sys.byteorder == 'little': self.assert_pack("I", "I", 4, 0x04030201, 0x08070605) self.assert_pack("I", "I;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999) else: self.assert_pack("I", "I", 4, 0x01020304, 0x05060708) self.assert_pack("I", "I;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097151999, 0x01000083) def test_F_float(self): self.assert_pack("F", "F;32F", 4, 1.539989614439558e-36, 4.063216068939723e-34) if sys.byteorder == 'little': self.assert_pack("F", "F", 4, 1.539989614439558e-36, 4.063216068939723e-34) self.assert_pack("F", "F;32NF", 4, 1.539989614439558e-36, 4.063216068939723e-34) else: self.assert_pack("F", "F", 4, 2.387939260590663e-38, 6.301941157072183e-36) self.assert_pack("F", "F;32NF", 4, 2.387939260590663e-38, 6.301941157072183e-36) class TestLibUnpack(PillowTestCase): def assert_unpack(self, mode, rawmode, data, *pixels): """ data - either raw bytes with data or just number of bytes in rawmode. """ if isinstance(data, (int)): data_len = data * len(pixels) data = bytes(bytearray(range(1, data_len + 1))) im = Image.frombytes(mode, (len(pixels), 1), data, "raw", rawmode, 0, 1) for x, pixel in enumerate(pixels): self.assertEqual(pixel, im.getpixel((x, 0))) def test_1(self): self.assert_unpack("1", "1", b'\x01', 0, 0, 0, 0, 0, 0, 0, X) self.assert_unpack("1", "1;I", b'\x01', X, X, X, X, X, X, X, 0) self.assert_unpack("1", "1;R", b'\x01', X, 0, 0, 0, 0, 0, 0, 0) self.assert_unpack("1", "1;IR", b'\x01', 0, X, X, X, X, X, X, X) self.assert_unpack("1", "1", b'\xaa', X, 0, X, 0, X, 0, X, 0) self.assert_unpack("1", "1;I", b'\xaa', 0, X, 0, X, 0, X, 0, X) self.assert_unpack("1", "1;R", b'\xaa', 0, X, 0, X, 0, X, 0, X) self.assert_unpack("1", "1;IR", b'\xaa', X, 0, X, 0, X, 0, X, 0) self.assert_unpack("1", "1;8", b'\x00\x01\x02\xff', 0, X, X, X) def test_L(self): self.assert_unpack("L", "L;2", b'\xe4', 255, 170, 85, 0) self.assert_unpack("L", "L;2I", b'\xe4', 0, 85, 170, 255) self.assert_unpack("L", "L;2R", b'\xe4', 0, 170, 85, 255) self.assert_unpack("L", "L;2IR", b'\xe4', 255, 85, 170, 0) self.assert_unpack("L", "L;4", b'\x02\xef', 0, 34, 238, 255) self.assert_unpack("L", "L;4I", b'\x02\xef', 255, 221, 17, 0) self.assert_unpack("L", "L;4R", b'\x02\xef', 68, 0, 255, 119) self.assert_unpack("L", "L;4IR", b'\x02\xef', 187, 255, 0, 136) self.assert_unpack("L", "L", 1, 1, 2, 3, 4) self.assert_unpack("L", "L;I", 1, 254, 253, 252, 251) self.assert_unpack("L", "L;R", 1, 128, 64, 192, 32) self.assert_unpack("L", "L;16", 2, 2, 4, 6, 8) self.assert_unpack("L", "L;16B", 2, 1, 3, 5, 7) self.assert_unpack("L", "L;16", b'\x00\xc6\x00\xaf', 198, 175) self.assert_unpack("L", "L;16B", b'\xc6\x00\xaf\x00', 198, 175) def test_LA(self): self.assert_unpack("LA", "LA", 2, (1, 2), (3, 4), (5, 6)) self.assert_unpack("LA", "LA;L", 2, (1, 4), (2, 5), (3, 6)) def test_P(self): self.assert_unpack("P", "P;1", b'\xe4', 1, 1, 1, 0, 0, 1, 0, 0) self.assert_unpack("P", "P;2", b'\xe4', 3, 2, 1, 0) # self.assert_unpack("P", "P;2L", b'\xe4', 1, 1, 1, 0) # erroneous? self.assert_unpack("P", "P;4", b'\x02\xef', 0, 2, 14, 15) # self.assert_unpack("P", "P;4L", b'\x02\xef', 2, 10, 10, 0) # erroneous? self.assert_unpack("P", "P", 1, 1, 2, 3, 4) self.assert_unpack("P", "P;R", 1, 128, 64, 192, 32) def test_PA(self): self.assert_unpack("PA", "PA", 2, (1, 2), (3, 4), (5, 6)) self.assert_unpack("PA", "PA;L", 2, (1, 4), (2, 5), (3, 6)) def test_RGB(self): self.assert_unpack("RGB", "RGB", 3, (1,2,3), (4,5,6), (7,8,9)) self.assert_unpack("RGB", "RGB;L", 3, (1,4,7), (2,5,8), (3,6,9)) self.assert_unpack("RGB", "RGB;R", 3, (128,64,192), (32,160,96)) self.assert_unpack("RGB", "RGB;16L", 6, (2,4,6), (8,10,12)) self.assert_unpack("RGB", "RGB;16B", 6, (1,3,5), (7,9,11)) self.assert_unpack("RGB", "BGR", 3, (3,2,1), (6,5,4), (9,8,7)) self.assert_unpack("RGB", "RGB;15", 2, (8,131,0), (24,0,8)) self.assert_unpack("RGB", "BGR;15", 2, (0,131,8), (8,0,24)) self.assert_unpack("RGB", "RGB;16", 2, (8,64,0), (24,129,0)) self.assert_unpack("RGB", "BGR;16", 2, (0,64,8), (0,129,24)) self.assert_unpack("RGB", "RGB;4B", 2, (17,0,34), (51,0,68)) self.assert_unpack("RGB", "RGBX", 4, (1,2,3), (5,6,7), (9,10,11)) self.assert_unpack("RGB", "RGBX;L", 4, (1,4,7), (2,5,8), (3,6,9)) self.assert_unpack("RGB", "BGRX", 4, (3,2,1), (7,6,5), (11,10,9)) self.assert_unpack("RGB", "XRGB", 4, (2,3,4), (6,7,8), (10,11,12)) self.assert_unpack("RGB", "XBGR", 4, (4,3,2), (8,7,6), (12,11,10)) self.assert_unpack("RGB", "YCC;P", b'D]\x9c\x82\x1a\x91\xfaOC\xe7J\x12', # random data (127,102,0), (192,227,0), (213,255,170), (98,255,133)) self.assert_unpack("RGB", "R", 1, (1,0,0), (2,0,0), (3,0,0)) self.assert_unpack("RGB", "G", 1, (0,1,0), (0,2,0), (0,3,0)) self.assert_unpack("RGB", "B", 1, (0,0,1), (0,0,2), (0,0,3)) def test_RGBA(self): self.assert_unpack("RGBA", "LA", 2, (1,1,1,2), (3,3,3,4), (5,5,5,6)) self.assert_unpack("RGBA", "LA;16B", 4, (1,1,1,3), (5,5,5,7), (9,9,9,11)) self.assert_unpack("RGBA", "RGBA", 4, (1,2,3,4), (5,6,7,8), (9,10,11,12)) self.assert_unpack("RGBA", "RGBa", 4, (63,127,191,4), (159,191,223,8), (191,212,233,12)) self.assert_unpack("RGBA", "RGBa", b'\x01\x02\x03\x00\x10\x20\x30\xff', (0,0,0,0), (16,32,48,255)) self.assert_unpack("RGBA", "RGBa;16L", 8, (63,127,191,8), (159,191,223,16), (191,212,233,24)) self.assert_unpack("RGBA", "RGBa;16L", b'\x88\x01\x88\x02\x88\x03\x88\x00' b'\x88\x10\x88\x20\x88\x30\x88\xff', (0,0,0,0), (16,32,48,255)) self.assert_unpack("RGBA", "RGBa;16B", 8, (36,109,182,7), (153,187,221,15), (188,210,232,23)) self.assert_unpack("RGBA", "RGBa;16B", b'\x01\x88\x02\x88\x03\x88\x00\x88' b'\x10\x88\x20\x88\x30\x88\xff\x88', (0,0,0,0), (16,32,48,255)) self.assert_unpack("RGBA", "BGRa", 4, (191,127,63,4), (223,191,159,8), (233,212,191,12)) self.assert_unpack("RGBA", "BGRa", b'\x01\x02\x03\x00\x10\x20\x30\xff', (0,0,0,0), (48,32,16,255)) self.assert_unpack("RGBA", "RGBA;I", 4, (254,253,252,4), (250,249,248,8), (246,245,244,12)) self.assert_unpack("RGBA", "RGBA;L", 4, (1,4,7,10), (2,5,8,11), (3,6,9,12)) self.assert_unpack("RGBA", "RGBA;15", 2, (8,131,0,0), (24,0,8,0)) self.assert_unpack("RGBA", "BGRA;15", 2, (0,131,8,0), (8,0,24,0)) self.assert_unpack("RGBA", "RGBA;4B", 2, (17,0,34,0), (51,0,68,0)) self.assert_unpack("RGBA", "RGBA;16L", 8, (2,4,6,8), (10,12,14,16)) self.assert_unpack("RGBA", "RGBA;16B", 8, (1,3,5,7), (9,11,13,15)) self.assert_unpack("RGBA", "BGRA", 4, (3,2,1,4), (7,6,5,8), (11,10,9,12)) self.assert_unpack("RGBA", "ARGB", 4, (2,3,4,1), (6,7,8,5), (10,11,12,9)) self.assert_unpack("RGBA", "ABGR", 4, (4,3,2,1), (8,7,6,5), (12,11,10,9)) self.assert_unpack("RGBA", "YCCA;P", b']bE\x04\xdd\xbej\xed57T\xce\xac\xce:\x11', # random data (0,161,0,4), (255,255,255,237), (27,158,0,206), (0,118,0,17)) self.assert_unpack("RGBA", "R", 1, (1,0,0,0), (2,0,0,0), (3,0,0,0)) self.assert_unpack("RGBA", "G", 1, (0,1,0,0), (0,2,0,0), (0,3,0,0)) self.assert_unpack("RGBA", "B", 1, (0,0,1,0), (0,0,2,0), (0,0,3,0)) self.assert_unpack("RGBA", "A", 1, (0,0,0,1), (0,0,0,2), (0,0,0,3)) def test_RGBa(self): self.assert_unpack("RGBa", "RGBa", 4, (1,2,3,4), (5,6,7,8), (9,10,11,12)) self.assert_unpack("RGBa", "BGRa", 4, (3,2,1,4), (7,6,5,8), (11,10,9,12)) self.assert_unpack("RGBa", "aRGB", 4, (2,3,4,1), (6,7,8,5), (10,11,12,9)) self.assert_unpack("RGBa", "aBGR", 4, (4,3,2,1), (8,7,6,5), (12,11,10,9)) def test_RGBX(self): self.assert_unpack("RGBX", "RGB", 3, (1,2,3,X), (4,5,6,X), (7,8,9,X)) self.assert_unpack("RGBX", "RGB;L", 3, (1,4,7,X), (2,5,8,X), (3,6,9,X)) self.assert_unpack("RGBX", "RGB;16B", 6, (1,3,5,X), (7,9,11,X)) self.assert_unpack("RGBX", "BGR", 3, (3,2,1,X), (6,5,4,X), (9,8,7,X)) self.assert_unpack("RGBX", "RGB;15", 2, (8,131,0,X), (24,0,8,X)) self.assert_unpack("RGBX", "BGR;15", 2, (0,131,8,X), (8,0,24,X)) self.assert_unpack("RGBX", "RGB;4B", 2, (17,0,34,X), (51,0,68,X)) self.assert_unpack("RGBX", "RGBX", 4, (1,2,3,4), (5,6,7,8), (9,10,11,12)) self.assert_unpack("RGBX", "RGBXX", 5, (1,2,3,4), (6,7,8,9), (11,12,13,14)) self.assert_unpack("RGBX", "RGBXXX", 6, (1,2,3,4), (7,8,9,10), (13,14,15,16)) self.assert_unpack("RGBX", "RGBX;L", 4, (1,4,7,10), (2,5,8,11), (3,6,9,12)) self.assert_unpack("RGBX", "RGBX;16L", 8, (2,4,6,8), (10,12,14,16)) self.assert_unpack("RGBX", "RGBX;16B", 8, (1,3,5,7), (9,11,13,15)) self.assert_unpack("RGBX", "BGRX", 4, (3,2,1,X), (7,6,5,X), (11,10,9,X)) self.assert_unpack("RGBX", "XRGB", 4, (2,3,4,X), (6,7,8,X), (10,11,12,X)) self.assert_unpack("RGBX", "XBGR", 4, (4,3,2,X), (8,7,6,X), (12,11,10,X)) self.assert_unpack("RGBX", "YCC;P", b'D]\x9c\x82\x1a\x91\xfaOC\xe7J\x12', # random data (127,102,0,X), (192,227,0,X), (213,255,170,X), (98,255,133,X)) self.assert_unpack("RGBX", "R", 1, (1,0,0,0), (2,0,0,0), (3,0,0,0)) self.assert_unpack("RGBX", "G", 1, (0,1,0,0), (0,2,0,0), (0,3,0,0)) self.assert_unpack("RGBX", "B", 1, (0,0,1,0), (0,0,2,0), (0,0,3,0)) self.assert_unpack("RGBX", "X", 1, (0,0,0,1), (0,0,0,2), (0,0,0,3)) def test_CMYK(self): self.assert_unpack("CMYK", "CMYK", 4, (1,2,3,4), (5,6,7,8), (9,10,11,12)) self.assert_unpack("CMYK", "CMYKX", 5, (1,2,3,4), (6,7,8,9), (11,12,13,14)) self.assert_unpack("CMYK", "CMYKXX", 6, (1,2,3,4), (7,8,9,10), (13,14,15,16)) self.assert_unpack("CMYK", "CMYK;I", 4, (254,253,252,251), (250,249,248,247), (246,245,244,243)) self.assert_unpack("CMYK", "CMYK;L", 4, (1,4,7,10), (2,5,8,11), (3,6,9,12)) self.assert_unpack("CMYK", "C", 1, (1,0,0,0), (2,0,0,0), (3,0,0,0)) self.assert_unpack("CMYK", "M", 1, (0,1,0,0), (0,2,0,0), (0,3,0,0)) self.assert_unpack("CMYK", "Y", 1, (0,0,1,0), (0,0,2,0), (0,0,3,0)) self.assert_unpack("CMYK", "K", 1, (0,0,0,1), (0,0,0,2), (0,0,0,3)) self.assert_unpack("CMYK", "C;I", 1, (254,0,0,0), (253,0,0,0), (252,0,0,0)) self.assert_unpack("CMYK", "M;I", 1, (0,254,0,0), (0,253,0,0), (0,252,0,0)) self.assert_unpack("CMYK", "Y;I", 1, (0,0,254,0), (0,0,253,0), (0,0,252,0)) self.assert_unpack("CMYK", "K;I", 1, (0,0,0,254), (0,0,0,253), (0,0,0,252)) def test_YCbCr(self): self.assert_unpack("YCbCr", "YCbCr", 3, (1,2,3), (4,5,6), (7,8,9)) self.assert_unpack("YCbCr", "YCbCr;L", 3, (1,4,7), (2,5,8), (3,6,9)) self.assert_unpack("YCbCr", "YCbCrK", 4, (1,2,3), (5,6,7), (9,10,11)) self.assert_unpack("YCbCr", "YCbCrX", 4, (1,2,3), (5,6,7), (9,10,11)) self.assert_unpack("YCbCr", "YCbCrXX", 5, (1,2,3), (6,7,8), (11,12,13)) self.assert_unpack("YCbCr", "YCbCrXXX", 6, (1,2,3), (7,8,9), (13,14,15)) def test_LAB(self): self.assert_unpack("LAB", "LAB", 3, (1,130,131), (4,133,134), (7,136,137)) self.assert_unpack("LAB", "L", 1, (1,0,0), (2,0,0), (3,0,0)) self.assert_unpack("LAB", "A", 1, (0,1,0), (0,2,0), (0,3,0)) self.assert_unpack("LAB", "B", 1, (0,0,1), (0,0,2), (0,0,3)) def test_HSV(self): self.assert_unpack("HSV", "HSV", 3, (1,2,3), (4,5,6), (7,8,9)) self.assert_unpack("HSV", "H", 1, (1,0,0), (2,0,0), (3,0,0)) self.assert_unpack("HSV", "S", 1, (0,1,0), (0,2,0), (0,3,0)) self.assert_unpack("HSV", "V", 1, (0,0,1), (0,0,2), (0,0,3)) def test_I(self): self.assert_unpack("I", "I;8", 1, 0x01, 0x02, 0x03, 0x04) self.assert_unpack("I", "I;8S", b'\x01\x83', 1, -125) self.assert_unpack("I", "I;16", 2, 0x0201, 0x0403) self.assert_unpack("I", "I;16S", b'\x83\x01\x01\x83', 0x0183, -31999) self.assert_unpack("I", "I;16B", 2, 0x0102, 0x0304) self.assert_unpack("I", "I;16BS", b'\x83\x01\x01\x83', -31999, 0x0183) self.assert_unpack("I", "I;32", 4, 0x04030201, 0x08070605) self.assert_unpack("I", "I;32S", b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999) self.assert_unpack("I", "I;32B", 4, 0x01020304, 0x05060708) self.assert_unpack("I", "I;32BS", b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097151999, 0x01000083) if sys.byteorder == 'little': self.assert_unpack("I", "I", 4, 0x04030201, 0x08070605) self.assert_unpack("I", "I;16N", 2, 0x0201, 0x0403) self.assert_unpack("I", "I;16NS", b'\x83\x01\x01\x83', 0x0183, -31999) self.assert_unpack("I", "I;32N", 4, 0x04030201, 0x08070605) self.assert_unpack("I", "I;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', 0x01000083, -2097151999) else: self.assert_unpack("I", "I", 4, 0x01020304, 0x05060708) self.assert_unpack("I", "I;16N", 2, 0x0102, 0x0304) self.assert_unpack("I", "I;16NS", b'\x83\x01\x01\x83', -31999, 0x0183) self.assert_unpack("I", "I;32N", 4, 0x01020304, 0x05060708) self.assert_unpack("I", "I;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097151999, 0x01000083) def test_F_int(self): self.assert_unpack("F", "F;8", 1, 0x01, 0x02, 0x03, 0x04) self.assert_unpack("F", "F;8S", b'\x01\x83', 1, -125) self.assert_unpack("F", "F;16", 2, 0x0201, 0x0403) self.assert_unpack("F", "F;16S", b'\x83\x01\x01\x83', 0x0183, -31999) self.assert_unpack("F", "F;16B", 2, 0x0102, 0x0304) self.assert_unpack("F", "F;16BS", b'\x83\x01\x01\x83', -31999, 0x0183) self.assert_unpack("F", "F;32", 4, 67305984, 134678016) self.assert_unpack("F", "F;32S", b'\x83\x00\x00\x01\x01\x00\x00\x83', 16777348, -2097152000) self.assert_unpack("F", "F;32B", 4, 0x01020304, 0x05060708) self.assert_unpack("F", "F;32BS", b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097152000, 16777348) if sys.byteorder == 'little': self.assert_unpack("F", "F;16N", 2, 0x0201, 0x0403) self.assert_unpack("F", "F;16NS", b'\x83\x01\x01\x83', 0x0183, -31999) self.assert_unpack("F", "F;32N", 4, 67305984, 134678016) self.assert_unpack("F", "F;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', 16777348, -2097152000) else: self.assert_unpack("F", "F;16N", 2, 0x0102, 0x0304) self.assert_unpack("F", "F;16NS", b'\x83\x01\x01\x83', -31999, 0x0183) self.assert_unpack("F", "F;32N", 4, 0x01020304, 0x05060708) self.assert_unpack("F", "F;32NS", b'\x83\x00\x00\x01\x01\x00\x00\x83', -2097152000, 16777348) def test_F_float(self): self.assert_unpack("F", "F;32F", 4, 1.539989614439558e-36, 4.063216068939723e-34) self.assert_unpack("F", "F;32BF", 4, 2.387939260590663e-38, 6.301941157072183e-36) self.assert_unpack("F", "F;64F", b'333333\xc3?\x00\x00\x00\x00\x00J\x93\xc0', # by struct.pack 0.15000000596046448, -1234.5) self.assert_unpack("F", "F;64BF", b'?\xc3333333\xc0\x93J\x00\x00\x00\x00\x00', # by struct.pack 0.15000000596046448, -1234.5) if sys.byteorder == 'little': self.assert_unpack("F", "F", 4, 1.539989614439558e-36, 4.063216068939723e-34) self.assert_unpack("F", "F;32NF", 4, 1.539989614439558e-36, 4.063216068939723e-34) self.assert_unpack("F", "F;64NF", b'333333\xc3?\x00\x00\x00\x00\x00J\x93\xc0', 0.15000000596046448, -1234.5) else: self.assert_unpack("F", "F", 4, 2.387939260590663e-38, 6.301941157072183e-36) self.assert_unpack("F", "F;32NF", 4, 2.387939260590663e-38, 6.301941157072183e-36) self.assert_unpack("F", "F;64NF", b'?\xc3333333\xc0\x93J\x00\x00\x00\x00\x00', 0.15000000596046448, -1234.5) def test_I16(self): self.assert_unpack("I;16", "I;16", 2, 0x0201, 0x0403, 0x0605) self.assert_unpack("I;16B", "I;16B", 2, 0x0102, 0x0304, 0x0506) self.assert_unpack("I;16L", "I;16L", 2, 0x0201, 0x0403, 0x0605) self.assert_unpack("I;16", "I;12", 2, 0x0010, 0x0203, 0x0040) if sys.byteorder == 'little': self.assert_unpack("I;16", "I;16N", 2, 0x0201, 0x0403, 0x0605) self.assert_unpack("I;16B", "I;16N", 2, 0x0201, 0x0403, 0x0605) self.assert_unpack("I;16L", "I;16N", 2, 0x0201, 0x0403, 0x0605) else: self.assert_unpack("I;16", "I;16N", 2, 0x0102, 0x0304, 0x0506) self.assert_unpack("I;16B", "I;16N", 2, 0x0102, 0x0304, 0x0506) self.assert_unpack("I;16L", "I;16N", 2, 0x0102, 0x0304, 0x0506) def test_value_error(self): self.assertRaises(ValueError, self.assert_unpack, "L", "L", 0, 0) self.assertRaises(ValueError, self.assert_unpack, "RGB", "RGB", 2, 0) self.assertRaises(ValueError, self.assert_unpack, "CMYK", "CMYK", 2, 0) if __name__ == '__main__': unittest.main()