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Test mode when saving PPM images (#9195)

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Hugo van Kemenade 2025-10-10 12:58:56 +03:00 committed by GitHub
commit 10c674510f
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1 changed files with 13 additions and 0 deletions
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Tests/test_file_ppm.py
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@ -92,6 +92,13 @@ def test_16bit_pgm() -> None:
assert_image_equal_tofile(im, "Tests/images/16_bit_binary_pgm.tiff")
def test_p4_save(tmp_path: Path) -> None:
with Image.open("Tests/images/hopper_1bit.pbm") as im:
filename = tmp_path / "temp.pbm"
im.save(filename)
assert_image_equal_tofile(im, filename)
def test_16bit_pgm_write(tmp_path: Path) -> None:
with Image.open("Tests/images/16_bit_binary.pgm") as im:
filename = tmp_path / "temp.pgm"
@ -134,6 +141,12 @@ def test_pfm_big_endian(tmp_path: Path) -> None:
assert_image_equal_tofile(im, filename)
def test_save_unsupported_mode(tmp_path: Path) -> None:
im = hopper("P")
with pytest.raises(OSError, match="cannot write mode P as PPM"):
im.save(tmp_path / "out.ppm")
@pytest.mark.parametrize(
"data",
[