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121 lines
3.4 KiB
Python
121 lines
3.4 KiB
Python
from __future__ import annotations
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from types import ModuleType
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import pytest
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from PIL import Image, JpegXlImagePlugin
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from .helper import skip_unless_feature
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pytestmark = [skip_unless_feature("jpegxl")]
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ElementTree: ModuleType | None
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try:
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from defusedxml import ElementTree
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except ImportError:
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ElementTree = None
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# cjxl flower.jpg flower.jxl --lossless_jpeg=0 -q 75 -e 8
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# >>> from PIL import Image
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# >>> with Image.open('Tests/images/flower2.webp') as im:
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# >>> with open('/tmp/xmp.xml', 'wb') as f:
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# >>> f.write(im.info['xmp'])
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# cjxl flower2.jpg flower2.jxl --lossless_jpeg=0 -q 75 -e 8 -x xmp=/tmp/xmp.xml
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def test_read_exif_metadata() -> None:
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with Image.open("Tests/images/flower.jxl") as im:
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assert im.format == "JPEG XL"
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exif_data = im.info["exif"]
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exif = im.getexif()
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# Camera make
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assert exif[271] == "Canon"
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with Image.open("Tests/images/flower.jpg") as im_jpeg:
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expected_exif = im_jpeg.info["exif"]
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# jpeg xl always returns exif without 'Exif\0\0' prefix
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assert exif_data == expected_exif[6:]
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def test_read_exif_metadata_without_prefix() -> None:
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with Image.open("Tests/images/flower2.jxl") as im:
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# Assert prefix is not present
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assert im.info["exif"][:6] != b"Exif\x00\x00"
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exif = im.getexif()
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assert exif[305] == "Adobe Photoshop CS6 (Macintosh)"
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def test_read_icc_profile() -> None:
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with Image.open("Tests/images/flower2.jxl") as im:
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assert im.format == "JPEG XL"
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icc = im.info["icc_profile"]
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with Image.open("Tests/images/flower2.jxl") as im_jpeg:
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expected_icc = im_jpeg.info["icc_profile"]
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assert icc == expected_icc
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def test_getxmp() -> None:
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with Image.open("Tests/images/flower.jxl") as im:
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assert "xmp" not in im.info
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if ElementTree is None:
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with pytest.warns(
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UserWarning,
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match="XMP data cannot be read without defusedxml dependency",
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):
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xmp = im.getxmp()
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else:
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xmp = im.getxmp()
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assert xmp == {}
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with Image.open("Tests/images/flower2.jxl") as im:
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if ElementTree is None:
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with pytest.warns(
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UserWarning,
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match="XMP data cannot be read without defusedxml dependency",
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):
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assert im.getxmp() == {}
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else:
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assert "xmp" in im.info
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assert (
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im.getxmp()["xmpmeta"]["xmptk"]
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== "Adobe XMP Core 5.3-c011 66.145661, 2012/02/06-14:56:27 "
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)
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def test_4_byte_exif(monkeypatch: pytest.MonkeyPatch) -> None:
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class _mock_jpegxl:
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class JpegXlDecoder:
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def __init__(self, b: bytes) -> None:
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pass
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def get_info(self) -> tuple[tuple[int, int], str, int, int, int, int, int]:
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return ((1, 1), "L", 0, 0, 0, 0, 0)
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def get_icc(self) -> None:
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pass
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def get_exif(self) -> bytes:
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return b"\0\0\0\0"
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def get_xmp(self) -> None:
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pass
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monkeypatch.setattr(JpegXlImagePlugin, "_jpegxl", _mock_jpegxl)
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with Image.open("Tests/images/hopper.jxl") as im:
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assert "exif" not in im.info
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def test_read_exif_metadata_empty() -> None:
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with Image.open("Tests/images/hopper.jxl") as im:
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assert im.getexif() == {}
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