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Merge pull request #7209 from Yay295/bytes_tests

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Hugo van Kemenade 2024-03-30 11:08:50 +02:00 committed by GitHub
commit 016415800a
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2 changed files with 70 additions and 29 deletions
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87
Tests/test_image.py
View File

@ -33,36 +33,38 @@ from .helper import (
skip_unless_feature,
)
# name, pixel size
image_modes = (
("1", 1),
("L", 1),
("LA", 4),
("La", 4),
("P", 1),
("PA", 4),
("F", 4),
("I", 4),
("I;16", 2),
("I;16L", 2),
("I;16B", 2),
("I;16N", 2),
("RGB", 4),
("RGBA", 4),
("RGBa", 4),
("RGBX", 4),
("BGR;15", 2),
("BGR;16", 2),
("BGR;24", 3),
("CMYK", 4),
("YCbCr", 4),
("HSV", 4),
("LAB", 4),
)
image_mode_names = [name for name, _ in image_modes]
class TestImage:
@pytest.mark.parametrize(
"mode",
(
"1",
"P",
"PA",
"L",
"LA",
"La",
"F",
"I",
"I;16",
"I;16L",
"I;16B",
"I;16N",
"RGB",
"RGBX",
"RGBA",
"RGBa",
"BGR;15",
"BGR;16",
"BGR;24",
"CMYK",
"YCbCr",
"LAB",
"HSV",
),
)
@pytest.mark.parametrize("mode", image_mode_names)
def test_image_modes_success(self, mode: str) -> None:
Image.new(mode, (1, 1))
@ -1042,6 +1044,35 @@ class TestImage:
assert im.fp is None
class TestImageBytes:
@pytest.mark.parametrize("mode", image_mode_names)
def test_roundtrip_bytes_constructor(self, mode: str) -> None:
im = hopper(mode)
source_bytes = im.tobytes()
reloaded = Image.frombytes(mode, im.size, source_bytes)
assert reloaded.tobytes() == source_bytes
@pytest.mark.parametrize("mode", image_mode_names)
def test_roundtrip_bytes_method(self, mode: str) -> None:
im = hopper(mode)
source_bytes = im.tobytes()
reloaded = Image.new(mode, im.size)
reloaded.frombytes(source_bytes)
assert reloaded.tobytes() == source_bytes
@pytest.mark.parametrize(("mode", "pixelsize"), image_modes)
def test_getdata_putdata(self, mode: str, pixelsize: int) -> None:
im = Image.new(mode, (2, 2))
source_bytes = bytes(range(im.width * im.height * pixelsize))
im.frombytes(source_bytes)
reloaded = Image.new(mode, im.size)
reloaded.putdata(im.getdata())
assert_image_equal(im, reloaded)
class MockEncoder(ImageFile.PyEncoder):
pass

12
src/_imaging.c
View File

@ -1578,7 +1578,17 @@ if (PySequence_Check(op)) { \
int bigendian = 0;
if (image->type == IMAGING_TYPE_SPECIAL) {
// I;16*
bigendian = strcmp(image->mode, "I;16B") == 0;
if (strcmp(image->mode, "I;16N") == 0) {
#ifdef WORDS_BIGENDIAN
bigendian = 1;
#else
bigendian = 0;
#endif
} else if (strcmp(image->mode, "I;16B") == 0) {
bigendian = 1;
} else {
bigendian = 0;
}
}
for (i = x = y = 0; i < n; i++) {
set_value_to_item(seq, i);