From 46cdd3129cfdd395b085db99c493ba3f33dc11bc Mon Sep 17 00:00:00 2001 From: Yay295 Date: Sat, 27 Apr 2024 17:44:57 -0500 Subject: [PATCH] parametrize test_lib_pack.py --- Tests/test_lib_pack.py | 1455 ++++++++++++++++++++-------------------- 1 file changed, 737 insertions(+), 718 deletions(-) diff --git a/Tests/test_lib_pack.py b/Tests/test_lib_pack.py index b4a300d0c59..a66bf97087e 100644 --- a/Tests/test_lib_pack.py +++ b/Tests/test_lib_pack.py @@ -1,820 +1,839 @@ from __future__ import annotations -import sys +from typing import Union import pytest from PIL import Image -X = 255 +from .helper import is_big_endian +X = 255 -class TestLibPack: - def assert_pack( - self, - mode: str, - rawmode: str, - data: int | bytes, - *pixels: float | tuple[int, ...], - ) -> None: - """ - 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(range(1, data_len + 1)) - - assert data == im.tobytes("raw", rawmode) - - def test_1(self) -> None: - 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) -> None: - 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) -> None: - 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_La(self) -> None: - self.assert_pack("La", "La", 2, (1, 2), (3, 4), (5, 6)) - - def test_P(self) -> None: - 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) -> None: - 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) -> None: - 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) -> None: - 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( +UnPackParamTypes = list[ + tuple[str, str, Union[bytes, int], list[Union[float, tuple[int, ...]]]] +] + + +def get_pack_parameters() -> UnPackParamTypes: + params: UnPackParamTypes = [] + + # Mode 1 + params += [ + ("1", "1", b"\x01", [0, 0, 0, 0, 0, 0, 0, X]), + ("1", "1;I", b"\x01", [X, X, X, X, X, X, X, 0]), + ("1", "1;R", b"\x01", [X, 0, 0, 0, 0, 0, 0, 0]), + ("1", "1;IR", b"\x01", [0, X, X, X, X, X, X, X]), + ("1", "1", b"\xaa", [X, 0, X, 0, X, 0, X, 0]), + ("1", "1;I", b"\xaa", [0, X, 0, X, 0, X, 0, X]), + ("1", "1;R", b"\xaa", [0, X, 0, X, 0, X, 0, X]), + ("1", "1;IR", b"\xaa", [X, 0, X, 0, X, 0, X, 0]), + ("1", "L", b"\xff\x00\x00\xff\x00\x00", [X, 0, 0, X, 0, 0]), + ] + + # Mode L + params += [ + ("L", "L", 1, [1, 2, 3, 4]), + ("L", "L;16", b"\x00\xc6\x00\xaf", [198, 175]), + ("L", "L;16B", b"\xc6\x00\xaf\x00", [198, 175]), + ] + + # Mode LA + params += [ + ("LA", "LA", 2, [(1, 2), (3, 4), (5, 6)]), + ("LA", "LA;L", 2, [(1, 4), (2, 5), (3, 6)]), + ] + + # Mode La + params += [("La", "La", 2, [(1, 2), (3, 4), (5, 6)])] + + # Mode P + params += [ + ("P", "P;1", b"\xe4", [1, 1, 1, 0, 0, 255, 0, 0]), + ("P", "P;2", b"\xe4", [3, 2, 1, 0]), + ("P", "P;4", b"\x02\xef", [0, 2, 14, 15]), + ("P", "P", 1, [1, 2, 3, 4]), + ] + + # Mode PA + params += [ + ("PA", "PA", 2, [(1, 2), (3, 4), (5, 6)]), + ("PA", "PA;L", 2, [(1, 4), (2, 5), (3, 6)]), + ] + + # Mode RGB + params += [ + ("RGB", "RGB", 3, [(1, 2, 3), (4, 5, 6), (7, 8, 9)]), + ("RGB", "RGBX", b"\x01\x02\x03\xff\x05\x06\x07\xff", [(1, 2, 3), (5, 6, 7)]), + ("RGB", "XRGB", b"\x00\x02\x03\x04\x00\x06\x07\x08", [(2, 3, 4), (6, 7, 8)]), + ("RGB", "BGR", 3, [(3, 2, 1), (6, 5, 4), (9, 8, 7)]), + ("RGB", "BGRX", b"\x01\x02\x03\x00\x05\x06\x07\x00", [(3, 2, 1), (7, 6, 5)]), + ("RGB", "XBGR", b"\x00\x02\x03\x04\x00\x06\x07\x08", [(4, 3, 2), (8, 7, 6)]), + ("RGB", "RGB;L", 3, [(1, 4, 7), (2, 5, 8), (3, 6, 9)]), + ("RGB", "R", 1, [(1, 9, 9), (2, 9, 9), (3, 9, 9)]), + ("RGB", "G", 1, [(9, 1, 9), (9, 2, 9), (9, 3, 9)]), + ("RGB", "B", 1, [(9, 9, 1), (9, 9, 2), (9, 9, 3)]), + ] + + # Mode RGBA + params += [ + ("RGBA", "RGBA", 4, [(1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)]), + ("RGBA", "RGBA;L", 4, [(1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)]), + ("RGBA", "RGB", 3, [(1, 2, 3, 14), (4, 5, 6, 15), (7, 8, 9, 16)]), + ("RGBA", "BGR", 3, [(3, 2, 1, 14), (6, 5, 4, 15), (9, 8, 7, 16)]), + ("RGBA", "BGRA", 4, [(3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12)]), + ("RGBA", "ABGR", 4, [(4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9)]), + ( "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) -> None: - 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) -> None: - 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( + [(191, 127, 63, 4), (223, 191, 159, 8), (233, 212, 191, 12)], + ), + ("RGBA", "R", 1, [(1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0)]), + ("RGBA", "G", 1, [(6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9)]), + ("RGBA", "B", 1, [(6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9)]), + ("RGBA", "A", 1, [(6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3)]), + ] + + # Mode RGBa + params += [ + ("RGBa", "RGBa", 4, [(1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)]), + ("RGBa", "BGRa", 4, [(3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12)]), + ("RGBa", "aBGR", 4, [(4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9)]), + ] + + # Mode RGBX + params += [ + ("RGBX", "RGBX", 4, [(1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)]), + ("RGBX", "RGBX;L", 4, [(1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)]), + ("RGBX", "RGB", 3, [(1, 2, 3, X), (4, 5, 6, X), (7, 8, 9, X)]), + ("RGBX", "BGR", 3, [(3, 2, 1, X), (6, 5, 4, X), (9, 8, 7, X)]), + ( "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( + [(3, 2, 1, X), (7, 6, 5, X), (11, 10, 9, X)], + ), + ( "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) -> None: - self.assert_pack("CMYK", "CMYK", 4, (1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)) - self.assert_pack( + [(4, 3, 2, X), (8, 7, 6, X), (12, 11, 10, X)], + ), + ("RGBX", "R", 1, [(1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0)]), + ("RGBX", "G", 1, [(6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9)]), + ("RGBX", "B", 1, [(6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9)]), + ("RGBX", "X", 1, [(6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3)]), + ] + + # Mode CMYK + params += [ + ("CMYK", "CMYK", 4, [(1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)]), + ( "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) -> None: - 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( + [(254, 253, 252, 251), (250, 249, 248, 247), (246, 245, 244, 243)], + ), + ("CMYK", "CMYK;L", 4, [(1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)]), + ("CMYK", "K", 1, [(6, 7, 0, 1), (6, 7, 0, 2), (0, 7, 0, 3)]), + ] + + # Mode YCbCr + params += [ + ("YCbCr", "YCbCr", 3, [(1, 2, 3), (4, 5, 6), (7, 8, 9)]), + ("YCbCr", "YCbCr;L", 3, [(1, 4, 7), (2, 5, 8), (3, 6, 9)]), + ( "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( + [(1, 2, 3), (5, 6, 7), (9, 10, 11)], + ), + ( "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) -> None: - 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) -> None: - 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) -> None: - 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( + [(1, 2, 3), (5, 6, 7), (9, 10, 11)], + ), + ("YCbCr", "Y", 1, [(1, 0, 8, 9), (2, 0, 8, 9), (3, 0, 8, 0)]), + ("YCbCr", "Cb", 1, [(6, 1, 8, 9), (6, 2, 8, 9), (6, 3, 8, 9)]), + ("YCbCr", "Cr", 1, [(6, 7, 1, 9), (6, 7, 2, 0), (6, 7, 3, 9)]), + ] + + # Mode LAB + params += [ + ("LAB", "LAB", 3, [(1, 130, 131), (4, 133, 134), (7, 136, 137)]), + ("LAB", "L", 1, [(1, 9, 9), (2, 9, 9), (3, 9, 9)]), + ("LAB", "A", 1, [(9, 1, 9), (9, 2, 9), (9, 3, 9)]), + ("LAB", "B", 1, [(9, 9, 1), (9, 9, 2), (9, 9, 3)]), + ] + + # Mode HSV + params += [ + ("HSV", "HSV", 3, [(1, 2, 3), (4, 5, 6), (7, 8, 9)]), + ("HSV", "H", 1, [(1, 9, 9), (2, 9, 9), (3, 9, 9)]), + ("HSV", "S", 1, [(9, 1, 9), (9, 2, 9), (9, 3, 9)]), + ("HSV", "V", 1, [(9, 9, 1), (9, 9, 2), (9, 9, 3)]), + ] + + # Mode I + params += [ + ("I", "I;16B", 2, [0x0102, 0x0304]), + ("I", "I;32S", b"\x83\x00\x00\x01\x01\x00\x00\x83", [0x01000083, -2097151999]), + ] + if is_big_endian(): + params += [ + ("I", "I", 4, [0x01020304, 0x05060708]), + ( "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( + [-2097151999, 0x01000083], + ), + ] + else: + params += [ + ("I", "I", 4, [0x04030201, 0x08070605]), + ( "I", "I;32NS", b"\x83\x00\x00\x01\x01\x00\x00\x83", - -2097151999, - 0x01000083, - ) - - def test_I16(self) -> None: - if sys.byteorder == "little": - self.assert_pack("I;16N", "I;16N", 2, 0x0201, 0x0403, 0x0605) - else: - self.assert_pack("I;16N", "I;16N", 2, 0x0102, 0x0304, 0x0506) - - def test_F_float(self) -> None: - 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: - def assert_unpack( - self, - mode: str, - rawmode: str, - data: int | bytes, - *pixels: float | tuple[int, ...], - ) -> None: - """ - data - either raw bytes with data or just number of bytes in rawmode. - """ - if isinstance(data, int): - data_len = data * len(pixels) - data = bytes(range(1, data_len + 1)) - - im = Image.frombytes(mode, (len(pixels), 1), data, "raw", rawmode, 0, 1) - - for x, pixel in enumerate(pixels): - assert pixel == im.getpixel((x, 0)) - - def test_1(self) -> None: - 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) -> None: - 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) -> None: - 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_La(self) -> None: - self.assert_unpack("La", "La", 2, (1, 2), (3, 4), (5, 6)) - - def test_P(self) -> None: - 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) + [0x01000083, -2097151999], + ), + ] + + # Mode I;16 + if is_big_endian(): + params += [("I;16N", "I;16N", 2, [0x0102, 0x0304, 0x0506])] + else: + params += [("I;16N", "I;16N", 2, [0x0201, 0x0403, 0x0605])] + + # Mode F float + params += [ + ("F", "F;32F", 4, [1.539989614439558e-36, 4.063216068939723e-34]), + ] + if is_big_endian(): + params += [ + ("F", "F", 4, [2.387939260590663e-38, 6.301941157072183e-36]), + ("F", "F;32NF", 4, [2.387939260590663e-38, 6.301941157072183e-36]), + ] + else: + params += [ + ("F", "F", 4, [1.539989614439558e-36, 4.063216068939723e-34]), + ("F", "F;32NF", 4, [1.539989614439558e-36, 4.063216068939723e-34]), + ] + + return params + + +@pytest.mark.parametrize("mode, rawmode, data, pixels", get_pack_parameters()) +def test_pack( + mode: str, rawmode: str, data: bytes | int, pixels: list[float | tuple[int, ...]] +) -> None: + """ + Test packing from {mode} to {rawmode}. + data - Either the number of bytes in a pixel of the rawmode, or a byte string. + If a number is given, bytes will be generated starting at 1. + The byte string will be compared against the pack result. + pixels - The pixels to populate the starting image with. + """ + 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(range(1, data_len + 1)) + + assert data == im.tobytes("raw", rawmode) + + +def get_unpack_parameters() -> UnPackParamTypes: + params: UnPackParamTypes = [] + + # Mode 1 + params += [ + ("1", "1", b"\x01", [0, 0, 0, 0, 0, 0, 0, X]), + ("1", "1;I", b"\x01", [X, X, X, X, X, X, X, 0]), + ("1", "1;R", b"\x01", [X, 0, 0, 0, 0, 0, 0, 0]), + ("1", "1;IR", b"\x01", [0, X, X, X, X, X, X, X]), + ("1", "1", b"\xaa", [X, 0, X, 0, X, 0, X, 0]), + ("1", "1;I", b"\xaa", [0, X, 0, X, 0, X, 0, X]), + ("1", "1;R", b"\xaa", [0, X, 0, X, 0, X, 0, X]), + ("1", "1;IR", b"\xaa", [X, 0, X, 0, X, 0, X, 0]), + ("1", "1;8", b"\x00\x01\x02\xff", [0, X, X, X]), + ] + + # Mode L + params += [ + ("L", "L;2", b"\xe4", [255, 170, 85, 0]), + ("L", "L;2I", b"\xe4", [0, 85, 170, 255]), + ("L", "L;2R", b"\xe4", [0, 170, 85, 255]), + ("L", "L;2IR", b"\xe4", [255, 85, 170, 0]), + ("L", "L;4", b"\x02\xef", [0, 34, 238, 255]), + ("L", "L;4I", b"\x02\xef", [255, 221, 17, 0]), + ("L", "L;4R", b"\x02\xef", [68, 0, 255, 119]), + ("L", "L;4IR", b"\x02\xef", [187, 255, 0, 136]), + ("L", "L", 1, [1, 2, 3, 4]), + ("L", "L;I", 1, [254, 253, 252, 251]), + ("L", "L;R", 1, [128, 64, 192, 32]), + ("L", "L;16", 2, [2, 4, 6, 8]), + ("L", "L;16B", 2, [1, 3, 5, 7]), + ("L", "L;16", b"\x00\xc6\x00\xaf", [198, 175]), + ("L", "L;16B", b"\xc6\x00\xaf\x00", [198, 175]), + ] + + # Mode LA + params += [ + ("LA", "LA", 2, [(1, 2), (3, 4), (5, 6)]), + ("LA", "LA;L", 2, [(1, 4), (2, 5), (3, 6)]), + ] + + # Mode La + params += [ + ("La", "La", 2, [(1, 2), (3, 4), (5, 6)]), + ] + + # Mode P + params += [ + ("P", "P;1", b"\xe4", [1, 1, 1, 0, 0, 1, 0, 0]), + ("P", "P;2", b"\xe4", [3, 2, 1, 0]), # erroneous? - # self.assert_unpack("P", "P;2L", b'\xe4', 1, 1, 1, 0) - self.assert_unpack("P", "P;4", b"\x02\xef", 0, 2, 14, 15) + # ("P", "P;2L", b"\xe4", [1, 1, 1, 0]), + ("P", "P;4", b"\x02\xef", [0, 2, 14, 15]), # erroneous? - # self.assert_unpack("P", "P;4L", b'\x02\xef', 2, 10, 10, 0) - 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) -> None: - 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) -> None: - 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( + # ("P", "P;4L", b"\x02\xef", [2, 10, 10, 0]), + ("P", "P", 1, [1, 2, 3, 4]), + ("P", "P;R", 1, [128, 64, 192, 32]), + ] + + # Mode PA + params += [ + ("PA", "PA", 2, [(1, 2), (3, 4), (5, 6)]), + ("PA", "PA;L", 2, [(1, 4), (2, 5), (3, 6)]), + ] + + # Mode RGB + params += [ + ("RGB", "RGB", 3, [(1, 2, 3), (4, 5, 6), (7, 8, 9)]), + ("RGB", "RGB;L", 3, [(1, 4, 7), (2, 5, 8), (3, 6, 9)]), + ("RGB", "RGB;R", 3, [(128, 64, 192), (32, 160, 96)]), + ("RGB", "RGB;16L", 6, [(2, 4, 6), (8, 10, 12)]), + ("RGB", "RGB;16B", 6, [(1, 3, 5), (7, 9, 11)]), + ("RGB", "BGR", 3, [(3, 2, 1), (6, 5, 4), (9, 8, 7)]), + ("RGB", "RGB;15", 2, [(8, 131, 0), (24, 0, 8)]), + ("RGB", "BGR;15", 2, [(0, 131, 8), (8, 0, 24)]), + ("RGB", "RGB;16", 2, [(8, 64, 0), (24, 129, 0)]), + ("RGB", "BGR;16", 2, [(0, 64, 8), (0, 129, 24)]), + ("RGB", "RGB;4B", 2, [(17, 0, 34), (51, 0, 68)]), + ("RGB", "RGBX", 4, [(1, 2, 3), (5, 6, 7), (9, 10, 11)]), + ("RGB", "RGBX;L", 4, [(1, 4, 7), (2, 5, 8), (3, 6, 9)]), + ("RGB", "BGRX", 4, [(3, 2, 1), (7, 6, 5), (11, 10, 9)]), + ("RGB", "XRGB", 4, [(2, 3, 4), (6, 7, 8), (10, 11, 12)]), + ("RGB", "XBGR", 4, [(4, 3, 2), (8, 7, 6), (12, 11, 10)]), + ( "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)) - - self.assert_unpack("RGB", "R;16B", 2, (1, 0, 0), (3, 0, 0), (5, 0, 0)) - self.assert_unpack("RGB", "G;16B", 2, (0, 1, 0), (0, 3, 0), (0, 5, 0)) - self.assert_unpack("RGB", "B;16B", 2, (0, 0, 1), (0, 0, 3), (0, 0, 5)) - - self.assert_unpack("RGB", "R;16L", 2, (2, 0, 0), (4, 0, 0), (6, 0, 0)) - self.assert_unpack("RGB", "G;16L", 2, (0, 2, 0), (0, 4, 0), (0, 6, 0)) - self.assert_unpack("RGB", "B;16L", 2, (0, 0, 2), (0, 0, 4), (0, 0, 6)) - - if sys.byteorder == "little": - self.assert_unpack("RGB", "R;16N", 2, (2, 0, 0), (4, 0, 0), (6, 0, 0)) - self.assert_unpack("RGB", "G;16N", 2, (0, 2, 0), (0, 4, 0), (0, 6, 0)) - self.assert_unpack("RGB", "B;16N", 2, (0, 0, 2), (0, 0, 4), (0, 0, 6)) - else: - self.assert_unpack("RGB", "R;16N", 2, (1, 0, 0), (3, 0, 0), (5, 0, 0)) - self.assert_unpack("RGB", "G;16N", 2, (0, 1, 0), (0, 3, 0), (0, 5, 0)) - self.assert_unpack("RGB", "B;16N", 2, (0, 0, 1), (0, 0, 3), (0, 0, 5)) - - self.assert_unpack( - "RGB", "CMYK", 4, (250, 249, 248), (242, 241, 240), (234, 233, 233) - ) - - def test_BGR(self) -> None: - with pytest.warns(DeprecationWarning): - self.assert_unpack( - "BGR;15", "BGR;15", 3, (8, 131, 0), (24, 0, 8), (41, 131, 8) - ) - self.assert_unpack( - "BGR;16", "BGR;16", 3, (8, 64, 0), (24, 129, 0), (41, 194, 0) - ) - self.assert_unpack("BGR;24", "BGR;24", 3, (1, 2, 3), (4, 5, 6), (7, 8, 9)) - - def test_RGBA(self) -> None: - 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", "RGBAX", 5, (1, 2, 3, 4), (6, 7, 8, 9), (11, 12, 13, 14) - ) - self.assert_unpack( - "RGBA", "RGBAXX", 6, (1, 2, 3, 4), (7, 8, 9, 10), (13, 14, 15, 16) - ) - self.assert_unpack( + [(127, 102, 0), (192, 227, 0), (213, 255, 170), (98, 255, 133)], + ), + ("RGB", "R", 1, [(1, 0, 0), (2, 0, 0), (3, 0, 0)]), + ("RGB", "G", 1, [(0, 1, 0), (0, 2, 0), (0, 3, 0)]), + ("RGB", "B", 1, [(0, 0, 1), (0, 0, 2), (0, 0, 3)]), + ("RGB", "R;16B", 2, [(1, 0, 0), (3, 0, 0), (5, 0, 0)]), + ("RGB", "G;16B", 2, [(0, 1, 0), (0, 3, 0), (0, 5, 0)]), + ("RGB", "B;16B", 2, [(0, 0, 1), (0, 0, 3), (0, 0, 5)]), + ("RGB", "R;16L", 2, [(2, 0, 0), (4, 0, 0), (6, 0, 0)]), + ("RGB", "G;16L", 2, [(0, 2, 0), (0, 4, 0), (0, 6, 0)]), + ("RGB", "B;16L", 2, [(0, 0, 2), (0, 0, 4), (0, 0, 6)]), + ] + + if is_big_endian(): + params += [ + ("RGB", "R;16N", 2, [(1, 0, 0), (3, 0, 0), (5, 0, 0)]), + ("RGB", "G;16N", 2, [(0, 1, 0), (0, 3, 0), (0, 5, 0)]), + ("RGB", "B;16N", 2, [(0, 0, 1), (0, 0, 3), (0, 0, 5)]), + ] + else: + params += [ + ("RGB", "R;16N", 2, [(2, 0, 0), (4, 0, 0), (6, 0, 0)]), + ("RGB", "G;16N", 2, [(0, 2, 0), (0, 4, 0), (0, 6, 0)]), + ("RGB", "B;16N", 2, [(0, 0, 2), (0, 0, 4), (0, 0, 6)]), + ] + + params += [ + ("RGB", "CMYK", 4, [(250, 249, 248), (242, 241, 240), (234, 233, 233)]), + ] + + # Mode RGBA + params += [ + ("RGBA", "LA", 2, [(1, 1, 1, 2), (3, 3, 3, 4), (5, 5, 5, 6)]), + ("RGBA", "LA;16B", 4, [(1, 1, 1, 3), (5, 5, 5, 7), (9, 9, 9, 11)]), + ("RGBA", "RGBA", 4, [(1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)]), + ("RGBA", "RGBAX", 5, [(1, 2, 3, 4), (6, 7, 8, 9), (11, 12, 13, 14)]), + ("RGBA", "RGBAXX", 6, [(1, 2, 3, 4), (7, 8, 9, 10), (13, 14, 15, 16)]), + ( "RGBA", "RGBa", 4, - (63, 127, 191, 4), - (159, 191, 223, 8), - (191, 212, 233, 12), - ) - self.assert_unpack( + [ + (63, 127, 191, 4), + (159, 191, 223, 8), + (191, 212, 233, 12), + ], + ), + ( "RGBA", "RGBa", b"\x01\x02\x03\x00\x10\x20\x30\x7f\x10\x20\x30\xff", - (0, 0, 0, 0), - (32, 64, 96, 127), - (16, 32, 48, 255), - ) - self.assert_unpack( + [ + (0, 0, 0, 0), + (32, 64, 96, 127), + (16, 32, 48, 255), + ], + ), + ( "RGBA", "RGBaX", b"\x01\x02\x03\x00-\x10\x20\x30\x7f-\x10\x20\x30\xff-", - (0, 0, 0, 0), - (32, 64, 96, 127), - (16, 32, 48, 255), - ) - self.assert_unpack( + [ + (0, 0, 0, 0), + (32, 64, 96, 127), + (16, 32, 48, 255), + ], + ), + ( "RGBA", "RGBaXX", b"\x01\x02\x03\x00==\x10\x20\x30\x7f!!\x10\x20\x30\xff??", - (0, 0, 0, 0), - (32, 64, 96, 127), - (16, 32, 48, 255), - ) - self.assert_unpack( + [ + (0, 0, 0, 0), + (32, 64, 96, 127), + (16, 32, 48, 255), + ], + ), + ( "RGBA", "RGBa;16L", 8, - (63, 127, 191, 8), - (159, 191, 223, 16), - (191, 212, 233, 24), - ) - self.assert_unpack( + [ + (63, 127, 191, 8), + (159, 191, 223, 16), + (191, 212, 233, 24), + ], + ), + ( "RGBA", "RGBa;16L", b"\x88\x01\x88\x02\x88\x03\x88\x00\x88\x10\x88\x20\x88\x30\x88\xff", - (0, 0, 0, 0), - (16, 32, 48, 255), - ) - self.assert_unpack( + [ + (0, 0, 0, 0), + (16, 32, 48, 255), + ], + ), + ( "RGBA", "RGBa;16B", 8, - (36, 109, 182, 7), - (153, 187, 221, 15), - (188, 210, 232, 23), - ) - self.assert_unpack( + [ + (36, 109, 182, 7), + (153, 187, 221, 15), + (188, 210, 232, 23), + ], + ), + ( "RGBA", "RGBa;16B", b"\x01\x88\x02\x88\x03\x88\x00\x88\x10\x88\x20\x88\x30\x88\xff\x88", - (0, 0, 0, 0), - (16, 32, 48, 255), - ) - self.assert_unpack( + [ + (0, 0, 0, 0), + (16, 32, 48, 255), + ], + ), + ( "RGBA", "BGRa", 4, - (191, 127, 63, 4), - (223, 191, 159, 8), - (233, 212, 191, 12), - ) - self.assert_unpack( + [ + (191, 127, 63, 4), + (223, 191, 159, 8), + (233, 212, 191, 12), + ], + ), + ( "RGBA", "BGRa", b"\x01\x02\x03\x00\x10\x20\x30\xff", - (0, 0, 0, 0), - (48, 32, 16, 255), - ) - self.assert_unpack( + [ + (0, 0, 0, 0), + (48, 32, 16, 255), + ], + ), + ( "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;16L", 8, (6, 4, 2, 8), (14, 12, 10, 16)) - self.assert_unpack("RGBA", "BGRA;16B", 8, (5, 3, 1, 7), (13, 11, 9, 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( + [ + (254, 253, 252, 4), + (250, 249, 248, 8), + (246, 245, 244, 12), + ], + ), + ("RGBA", "RGBA;L", 4, [(1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)]), + ("RGBA", "RGBA;15", 2, [(8, 131, 0, 0), (24, 0, 8, 0)]), + ("RGBA", "BGRA;15", 2, [(0, 131, 8, 0), (8, 0, 24, 0)]), + ("RGBA", "RGBA;4B", 2, [(17, 0, 34, 0), (51, 0, 68, 0)]), + ("RGBA", "RGBA;16L", 8, [(2, 4, 6, 8), (10, 12, 14, 16)]), + ("RGBA", "RGBA;16B", 8, [(1, 3, 5, 7), (9, 11, 13, 15)]), + ("RGBA", "BGRA;16L", 8, [(6, 4, 2, 8), (14, 12, 10, 16)]), + ("RGBA", "BGRA;16B", 8, [(5, 3, 1, 7), (13, 11, 9, 15)]), + ("RGBA", "BGRA", 4, [(3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12)]), + ("RGBA", "ARGB", 4, [(2, 3, 4, 1), (6, 7, 8, 5), (10, 11, 12, 9)]), + ("RGBA", "ABGR", 4, [(4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9)]), + ( "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)) - - self.assert_unpack("RGBA", "R;16B", 2, (1, 0, 0, 0), (3, 0, 0, 0), (5, 0, 0, 0)) - self.assert_unpack("RGBA", "G;16B", 2, (0, 1, 0, 0), (0, 3, 0, 0), (0, 5, 0, 0)) - self.assert_unpack("RGBA", "B;16B", 2, (0, 0, 1, 0), (0, 0, 3, 0), (0, 0, 5, 0)) - self.assert_unpack("RGBA", "A;16B", 2, (0, 0, 0, 1), (0, 0, 0, 3), (0, 0, 0, 5)) - - self.assert_unpack("RGBA", "R;16L", 2, (2, 0, 0, 0), (4, 0, 0, 0), (6, 0, 0, 0)) - self.assert_unpack("RGBA", "G;16L", 2, (0, 2, 0, 0), (0, 4, 0, 0), (0, 6, 0, 0)) - self.assert_unpack("RGBA", "B;16L", 2, (0, 0, 2, 0), (0, 0, 4, 0), (0, 0, 6, 0)) - self.assert_unpack("RGBA", "A;16L", 2, (0, 0, 0, 2), (0, 0, 0, 4), (0, 0, 0, 6)) - - if sys.byteorder == "little": - self.assert_unpack( - "RGBA", "R;16N", 2, (2, 0, 0, 0), (4, 0, 0, 0), (6, 0, 0, 0) - ) - self.assert_unpack( - "RGBA", "G;16N", 2, (0, 2, 0, 0), (0, 4, 0, 0), (0, 6, 0, 0) - ) - self.assert_unpack( - "RGBA", "B;16N", 2, (0, 0, 2, 0), (0, 0, 4, 0), (0, 0, 6, 0) - ) - self.assert_unpack( - "RGBA", "A;16N", 2, (0, 0, 0, 2), (0, 0, 0, 4), (0, 0, 0, 6) - ) - else: - self.assert_unpack( - "RGBA", "R;16N", 2, (1, 0, 0, 0), (3, 0, 0, 0), (5, 0, 0, 0) - ) - self.assert_unpack( - "RGBA", "G;16N", 2, (0, 1, 0, 0), (0, 3, 0, 0), (0, 5, 0, 0) - ) - self.assert_unpack( - "RGBA", "B;16N", 2, (0, 0, 1, 0), (0, 0, 3, 0), (0, 0, 5, 0) - ) - self.assert_unpack( - "RGBA", "A;16N", 2, (0, 0, 0, 1), (0, 0, 0, 3), (0, 0, 0, 5) - ) - - def test_RGBa(self) -> None: - 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) -> None: - 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( + [ + (0, 161, 0, 4), + (255, 255, 255, 237), + (27, 158, 0, 206), + (0, 118, 0, 17), + ], + ), + ("RGBA", "R", 1, [(1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0)]), + ("RGBA", "G", 1, [(0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0)]), + ("RGBA", "B", 1, [(0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0)]), + ("RGBA", "A", 1, [(0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3)]), + ("RGBA", "R;16B", 2, [(1, 0, 0, 0), (3, 0, 0, 0), (5, 0, 0, 0)]), + ("RGBA", "G;16B", 2, [(0, 1, 0, 0), (0, 3, 0, 0), (0, 5, 0, 0)]), + ("RGBA", "B;16B", 2, [(0, 0, 1, 0), (0, 0, 3, 0), (0, 0, 5, 0)]), + ("RGBA", "A;16B", 2, [(0, 0, 0, 1), (0, 0, 0, 3), (0, 0, 0, 5)]), + ("RGBA", "R;16L", 2, [(2, 0, 0, 0), (4, 0, 0, 0), (6, 0, 0, 0)]), + ("RGBA", "G;16L", 2, [(0, 2, 0, 0), (0, 4, 0, 0), (0, 6, 0, 0)]), + ("RGBA", "B;16L", 2, [(0, 0, 2, 0), (0, 0, 4, 0), (0, 0, 6, 0)]), + ("RGBA", "A;16L", 2, [(0, 0, 0, 2), (0, 0, 0, 4), (0, 0, 0, 6)]), + ] + + if is_big_endian(): + params += [ + ("RGBA", "R;16N", 2, [(1, 0, 0, 0), (3, 0, 0, 0), (5, 0, 0, 0)]), + ("RGBA", "G;16N", 2, [(0, 1, 0, 0), (0, 3, 0, 0), (0, 5, 0, 0)]), + ("RGBA", "B;16N", 2, [(0, 0, 1, 0), (0, 0, 3, 0), (0, 0, 5, 0)]), + ("RGBA", "A;16N", 2, [(0, 0, 0, 1), (0, 0, 0, 3), (0, 0, 0, 5)]), + ] + else: + params += [ + ("RGBA", "R;16N", 2, [(2, 0, 0, 0), (4, 0, 0, 0), (6, 0, 0, 0)]), + ("RGBA", "G;16N", 2, [(0, 2, 0, 0), (0, 4, 0, 0), (0, 6, 0, 0)]), + ("RGBA", "B;16N", 2, [(0, 0, 2, 0), (0, 0, 4, 0), (0, 0, 6, 0)]), + ("RGBA", "A;16N", 2, [(0, 0, 0, 2), (0, 0, 0, 4), (0, 0, 0, 6)]), + ] + + # Mode RGBa + params += [ + ("RGBa", "RGBa", 4, [(1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)]), + ("RGBa", "BGRa", 4, [(3, 2, 1, 4), (7, 6, 5, 8), (11, 10, 9, 12)]), + ("RGBa", "aRGB", 4, [(2, 3, 4, 1), (6, 7, 8, 5), (10, 11, 12, 9)]), + ("RGBa", "aBGR", 4, [(4, 3, 2, 1), (8, 7, 6, 5), (12, 11, 10, 9)]), + ] + + # Mode RGBX + params += [ + ("RGBX", "RGB", 3, [(1, 2, 3, X), (4, 5, 6, X), (7, 8, 9, X)]), + ("RGBX", "RGB;L", 3, [(1, 4, 7, X), (2, 5, 8, X), (3, 6, 9, X)]), + ("RGBX", "RGB;16B", 6, [(1, 3, 5, X), (7, 9, 11, X)]), + ("RGBX", "BGR", 3, [(3, 2, 1, X), (6, 5, 4, X), (9, 8, 7, X)]), + ("RGBX", "RGB;15", 2, [(8, 131, 0, X), (24, 0, 8, X)]), + ("RGBX", "BGR;15", 2, [(0, 131, 8, X), (8, 0, 24, X)]), + ("RGBX", "RGB;4B", 2, [(17, 0, 34, X), (51, 0, 68, X)]), + ("RGBX", "RGBX", 4, [(1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)]), + ("RGBX", "RGBXX", 5, [(1, 2, 3, 4), (6, 7, 8, 9), (11, 12, 13, 14)]), + ("RGBX", "RGBXXX", 6, [(1, 2, 3, 4), (7, 8, 9, 10), (13, 14, 15, 16)]), + ("RGBX", "RGBX;L", 4, [(1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)]), + ("RGBX", "RGBX;16L", 8, [(2, 4, 6, 8), (10, 12, 14, 16)]), + ("RGBX", "RGBX;16B", 8, [(1, 3, 5, 7), (9, 11, 13, 15)]), + ("RGBX", "BGRX", 4, [(3, 2, 1, X), (7, 6, 5, X), (11, 10, 9, X)]), + ("RGBX", "XRGB", 4, [(2, 3, 4, X), (6, 7, 8, X), (10, 11, 12, X)]), + ("RGBX", "XBGR", 4, [(4, 3, 2, X), (8, 7, 6, X), (12, 11, 10, X)]), + ( "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) -> None: - 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( + [ + (127, 102, 0, X), + (192, 227, 0, X), + (213, 255, 170, X), + (98, 255, 133, X), + ], + ), + ("RGBX", "R", 1, [(1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0)]), + ("RGBX", "G", 1, [(0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0)]), + ("RGBX", "B", 1, [(0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0)]), + ("RGBX", "X", 1, [(0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3)]), + ] + + # Mode CMYK + params += [ + ("CMYK", "CMYK", 4, [(1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)]), + ("CMYK", "CMYKX", 5, [(1, 2, 3, 4), (6, 7, 8, 9), (11, 12, 13, 14)]), + ("CMYK", "CMYKXX", 6, [(1, 2, 3, 4), (7, 8, 9, 10), (13, 14, 15, 16)]), + ( "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) -> None: - 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)) - - def test_LAB(self) -> None: - 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) -> None: - 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) -> None: - 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( + [ + (254, 253, 252, 251), + (250, 249, 248, 247), + (246, 245, 244, 243), + ], + ), + ("CMYK", "CMYK;L", 4, [(1, 4, 7, 10), (2, 5, 8, 11), (3, 6, 9, 12)]), + ("CMYK", "C", 1, [(1, 0, 0, 0), (2, 0, 0, 0), (3, 0, 0, 0)]), + ("CMYK", "M", 1, [(0, 1, 0, 0), (0, 2, 0, 0), (0, 3, 0, 0)]), + ("CMYK", "Y", 1, [(0, 0, 1, 0), (0, 0, 2, 0), (0, 0, 3, 0)]), + ("CMYK", "K", 1, [(0, 0, 0, 1), (0, 0, 0, 2), (0, 0, 0, 3)]), + ("CMYK", "C;I", 1, [(254, 0, 0, 0), (253, 0, 0, 0), (252, 0, 0, 0)]), + ("CMYK", "M;I", 1, [(0, 254, 0, 0), (0, 253, 0, 0), (0, 252, 0, 0)]), + ("CMYK", "Y;I", 1, [(0, 0, 254, 0), (0, 0, 253, 0), (0, 0, 252, 0)]), + ("CMYK", "K;I", 1, [(0, 0, 0, 254), (0, 0, 0, 253), (0, 0, 0, 252)]), + ] + + # Mode YCbCr + params += [ + ("YCbCr", "YCbCr", 3, [(1, 2, 3), (4, 5, 6), (7, 8, 9)]), + ("YCbCr", "YCbCr;L", 3, [(1, 4, 7), (2, 5, 8), (3, 6, 9)]), + ("YCbCr", "YCbCrK", 4, [(1, 2, 3), (5, 6, 7), (9, 10, 11)]), + ("YCbCr", "YCbCrX", 4, [(1, 2, 3), (5, 6, 7), (9, 10, 11)]), + ] + + # Mode LAB + params += [ + ("LAB", "LAB", 3, [(1, 130, 131), (4, 133, 134), (7, 136, 137)]), + ("LAB", "L", 1, [(1, 0, 0), (2, 0, 0), (3, 0, 0)]), + ("LAB", "A", 1, [(0, 1, 0), (0, 2, 0), (0, 3, 0)]), + ("LAB", "B", 1, [(0, 0, 1), (0, 0, 2), (0, 0, 3)]), + ] + + # Mode HSV + params += [ + ("HSV", "HSV", 3, [(1, 2, 3), (4, 5, 6), (7, 8, 9)]), + ("HSV", "H", 1, [(1, 0, 0), (2, 0, 0), (3, 0, 0)]), + ("HSV", "S", 1, [(0, 1, 0), (0, 2, 0), (0, 3, 0)]), + ("HSV", "V", 1, [(0, 0, 1), (0, 0, 2), (0, 0, 3)]), + ] + + # Mode I + params += [ + ("I", "I;8", 1, [0x01, 0x02, 0x03, 0x04]), + ("I", "I;8S", b"\x01\x83", [1, -125]), + ("I", "I;16", 2, [0x0201, 0x0403]), + ("I", "I;16S", b"\x83\x01\x01\x83", [0x0183, -31999]), + ("I", "I;16B", 2, [0x0102, 0x0304]), + ("I", "I;16BS", b"\x83\x01\x01\x83", [-31999, 0x0183]), + ("I", "I;32", 4, [0x04030201, 0x08070605]), + ("I", "I;32S", b"\x83\x00\x00\x01\x01\x00\x00\x83", [0x01000083, -2097151999]), + ("I", "I;32B", 4, [0x01020304, 0x05060708]), + ("I", "I;32BS", b"\x83\x00\x00\x01\x01\x00\x00\x83", [-2097151999, 0x01000083]), + ] + if is_big_endian(): + params += [ + ("I", "I", 4, [0x01020304, 0x05060708]), + ("I", "I;16N", 2, [0x0102, 0x0304]), + ("I", "I;16NS", b"\x83\x01\x01\x83", [-31999, 0x0183]), + ("I", "I;32N", 4, [0x01020304, 0x05060708]), + ( "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( + [ + -2097151999, + 0x01000083, + ], + ), + ] + else: + params += [ + ("I", "I", 4, [0x04030201, 0x08070605]), + ("I", "I;16N", 2, [0x0201, 0x0403]), + ("I", "I;16NS", b"\x83\x01\x01\x83", [0x0183, -31999]), + ("I", "I;32N", 4, [0x04030201, 0x08070605]), + ( "I", "I;32NS", b"\x83\x00\x00\x01\x01\x00\x00\x83", - -2097151999, - 0x01000083, - ) - - def test_F_int(self) -> None: - 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( + [ + 0x01000083, + -2097151999, + ], + ), + ] + + # Mode F int + params += [ + ("F", "F;8", 1, [0x01, 0x02, 0x03, 0x04]), + ("F", "F;8S", b"\x01\x83", [1, -125]), + ("F", "F;16", 2, [0x0201, 0x0403]), + ("F", "F;16S", b"\x83\x01\x01\x83", [0x0183, -31999]), + ("F", "F;16B", 2, [0x0102, 0x0304]), + ("F", "F;16BS", b"\x83\x01\x01\x83", [-31999, 0x0183]), + ("F", "F;32", 4, [67305984, 134678016]), + ("F", "F;32S", b"\x83\x00\x00\x01\x01\x00\x00\x83", [16777348, -2097152000]), + ("F", "F;32B", 4, [0x01020304, 0x05060708]), + ("F", "F;32BS", b"\x83\x00\x00\x01\x01\x00\x00\x83", [-2097152000, 16777348]), + ] + if is_big_endian(): + params += [ + ("F", "F;16N", 2, [0x0102, 0x0304]), + ("F", "F;16NS", b"\x83\x01\x01\x83", [-31999, 0x0183]), + ("F", "F;32N", 4, [0x01020304, 0x05060708]), + ( "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( + [-2097152000, 16777348], + ), + ] + else: + params += [ + ("F", "F;16N", 2, [0x0201, 0x0403]), + ("F", "F;16NS", b"\x83\x01\x01\x83", [0x0183, -31999]), + ("F", "F;32N", 4, [67305984, 134678016]), + ( "F", "F;32NS", b"\x83\x00\x00\x01\x01\x00\x00\x83", - -2097152000, - 16777348, - ) - - def test_F_float(self) -> None: - 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( + [16777348, -2097152000], + ), + ] + + # Mode F float + params += [ + ("F", "F;32F", 4, [1.539989614439558e-36, 4.063216068939723e-34]), + ("F", "F;32BF", 4, [2.387939260590663e-38, 6.301941157072183e-36]), + ( "F", "F;64F", b"333333\xc3?\x00\x00\x00\x00\x00J\x93\xc0", # by struct.pack - 0.15000000596046448, - -1234.5, - ) - self.assert_unpack( + [0.15000000596046448, -1234.5], + ), + ( "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( + [0.15000000596046448, -1234.5], + ), + ] + if is_big_endian(): + params += [ + ("F", "F", 4, [2.387939260590663e-38, 6.301941157072183e-36]), + ("F", "F;32NF", 4, [2.387939260590663e-38, 6.301941157072183e-36]), + ( "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( + b"?\xc3333333\xc0\x93J\x00\x00\x00\x00\x00", + [0.15000000596046448, -1234.5], + ), + ] + else: + params += [ + ("F", "F", 4, [1.539989614439558e-36, 4.063216068939723e-34]), + ("F", "F;32NF", 4, [1.539989614439558e-36, 4.063216068939723e-34]), + ( "F", "F;64NF", - b"?\xc3333333\xc0\x93J\x00\x00\x00\x00\x00", - 0.15000000596046448, - -1234.5, - ) - - def test_I16(self) -> None: - self.assert_unpack("I;16", "I;16", 2, 0x0201, 0x0403, 0x0605) - self.assert_unpack("I;16", "I;16B", 2, 0x0102, 0x0304, 0x0506) - 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) - self.assert_unpack("I;16N", "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) - self.assert_unpack("I;16N", "I;16N", 2, 0x0102, 0x0304, 0x0506) - - def test_CMYK16(self) -> None: - self.assert_unpack("CMYK", "CMYK;16L", 8, (2, 4, 6, 8), (10, 12, 14, 16)) - self.assert_unpack("CMYK", "CMYK;16B", 8, (1, 3, 5, 7), (9, 11, 13, 15)) - if sys.byteorder == "little": - self.assert_unpack("CMYK", "CMYK;16N", 8, (2, 4, 6, 8), (10, 12, 14, 16)) - else: - self.assert_unpack("CMYK", "CMYK;16N", 8, (1, 3, 5, 7), (9, 11, 13, 15)) - - def test_value_error(self) -> None: - with pytest.raises(ValueError): - self.assert_unpack("L", "L", 0, 0) - with pytest.raises(ValueError): - self.assert_unpack("RGB", "RGB", 2, 0) - with pytest.raises(ValueError): - self.assert_unpack("CMYK", "CMYK", 2, 0) + b"333333\xc3?\x00\x00\x00\x00\x00J\x93\xc0", + [0.15000000596046448, -1234.5], + ), + ] + + # Mode I;16 + params += [ + ("I;16", "I;16", 2, [0x0201, 0x0403, 0x0605]), + ("I;16", "I;16B", 2, [0x0102, 0x0304, 0x0506]), + ("I;16B", "I;16B", 2, [0x0102, 0x0304, 0x0506]), + ("I;16L", "I;16L", 2, [0x0201, 0x0403, 0x0605]), + ("I;16", "I;12", 2, [0x0010, 0x0203, 0x0040]), + ] + if is_big_endian(): + params += [ + ("I;16", "I;16N", 2, [0x0102, 0x0304, 0x0506]), + ("I;16B", "I;16N", 2, [0x0102, 0x0304, 0x0506]), + ("I;16L", "I;16N", 2, [0x0102, 0x0304, 0x0506]), + ("I;16N", "I;16N", 2, [0x0102, 0x0304, 0x0506]), + ] + else: + params += [ + ("I;16", "I;16N", 2, [0x0201, 0x0403, 0x0605]), + ("I;16B", "I;16N", 2, [0x0201, 0x0403, 0x0605]), + ("I;16L", "I;16N", 2, [0x0201, 0x0403, 0x0605]), + ("I;16N", "I;16N", 2, [0x0201, 0x0403, 0x0605]), + ] + + # Mode CMYK + params += [ + ("CMYK", "CMYK;16L", 8, [(2, 4, 6, 8), (10, 12, 14, 16)]), + ("CMYK", "CMYK;16B", 8, [(1, 3, 5, 7), (9, 11, 13, 15)]), + ] + if is_big_endian(): + params += [ + ("CMYK", "CMYK;16N", 8, [(1, 3, 5, 7), (9, 11, 13, 15)]), + ] + else: + params += [ + ("CMYK", "CMYK;16N", 8, [(2, 4, 6, 8), (10, 12, 14, 16)]), + ] + + return params + + +@pytest.mark.parametrize("mode, rawmode, data, pixels", get_unpack_parameters()) +def test_unpack( + mode: str, rawmode: str, data: bytes | int, pixels: list[float | tuple[int, ...]] +) -> None: + """ + Test unpacking from {rawmode} to {mode}. + data - Either the number of bytes in a pixel of the rawmode, or a byte string. + If a number is given, bytes will be generated starting at 1. + The byte string will be used to populate the starting image. + pixels - The pixels to be compared against the image pixels after unpacking. + """ + if isinstance(data, int): + data_len = data * len(pixels) + data = bytes(range(1, data_len + 1)) + + im = Image.frombytes(mode, (len(pixels), 1), data, "raw", rawmode, 0, 1) + + for x, pixel in enumerate(pixels): + assert pixel == im.getpixel((x, 0)) + + +@pytest.mark.parametrize( + "mode, rawmode, data, pixels", + ( + # Mode BGR + ("BGR;15", "BGR;15", 3, [(8, 131, 0), (24, 0, 8), (41, 131, 8)]), + ("BGR;16", "BGR;16", 3, [(8, 64, 0), (24, 129, 0), (41, 194, 0)]), + ("BGR;24", "BGR;24", 3, [(1, 2, 3), (4, 5, 6), (7, 8, 9)]), + ), +) +def test_unpack_deprecated( + mode: str, rawmode: str, data: int | bytes, pixels: list[float | tuple[int, ...]] +) -> None: + with pytest.warns(DeprecationWarning): + test_unpack(mode, rawmode, data, pixels) + + +@pytest.mark.parametrize( + "mode, rawmode, data, pixels", + ( + ("L", "L", 0, [0]), + ("RGB", "RGB", 2, [0]), + ("CMYK", "CMYK", 2, [0]), + ), +) +def test_unpack_valueerror( + mode: str, rawmode: str, data: int | bytes, pixels: list[float | tuple[int, ...]] +) -> None: + with pytest.raises(ValueError): + test_unpack(mode, rawmode, data, pixels)