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test_file_webp_metadata.py
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test_file_webp_metadata.py
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from io import BytesIO
import pytest
from PIL import Image
from .helper import mark_if_feature_version, skip_unless_feature
pytestmark = [
skip_unless_feature("webp"),
skip_unless_feature("webp_mux"),
]
def test_read_exif_metadata():
file_path = "Tests/images/flower.webp"
with Image.open(file_path) as image:
assert image.format == "WEBP"
exif_data = image.info.get("exif", None)
assert exif_data
exif = image._getexif()
# Camera make
assert exif[271] == "Canon"
with Image.open("Tests/images/flower.jpg") as jpeg_image:
expected_exif = jpeg_image.info["exif"]
assert exif_data == expected_exif
def test_read_exif_metadata_without_prefix():
with Image.open("Tests/images/flower2.webp") as im:
# Assert prefix is not present
assert im.info["exif"][:6] != b"Exif\x00\x00"
exif = im.getexif()
assert exif[305] == "Adobe Photoshop CS6 (Macintosh)"
@mark_if_feature_version(
pytest.mark.valgrind_known_error, "libjpeg_turbo", "2.0", reason="Known Failing"
)
def test_write_exif_metadata():
file_path = "Tests/images/flower.jpg"
test_buffer = BytesIO()
with Image.open(file_path) as image:
expected_exif = image.info["exif"]
image.save(test_buffer, "webp", exif=expected_exif)
test_buffer.seek(0)
with Image.open(test_buffer) as webp_image:
webp_exif = webp_image.info.get("exif", None)
assert webp_exif == expected_exif[6:], "WebP EXIF didn't match"
def test_read_icc_profile():
file_path = "Tests/images/flower2.webp"
with Image.open(file_path) as image:
assert image.format == "WEBP"
assert image.info.get("icc_profile", None)
icc = image.info["icc_profile"]
with Image.open("Tests/images/flower2.jpg") as jpeg_image:
expected_icc = jpeg_image.info["icc_profile"]
assert icc == expected_icc
@mark_if_feature_version(
pytest.mark.valgrind_known_error, "libjpeg_turbo", "2.0", reason="Known Failing"
)
def test_write_icc_metadata():
file_path = "Tests/images/flower2.jpg"
test_buffer = BytesIO()
with Image.open(file_path) as image:
expected_icc_profile = image.info["icc_profile"]
image.save(test_buffer, "webp", icc_profile=expected_icc_profile)
test_buffer.seek(0)
with Image.open(test_buffer) as webp_image:
webp_icc_profile = webp_image.info.get("icc_profile", None)
assert webp_icc_profile
if webp_icc_profile:
assert webp_icc_profile == expected_icc_profile, "Webp ICC didn't match"
@mark_if_feature_version(
pytest.mark.valgrind_known_error, "libjpeg_turbo", "2.0", reason="Known Failing"
)
def test_read_no_exif():
file_path = "Tests/images/flower.jpg"
test_buffer = BytesIO()
with Image.open(file_path) as image:
assert "exif" in image.info
image.save(test_buffer, "webp")
test_buffer.seek(0)
with Image.open(test_buffer) as webp_image:
assert not webp_image._getexif()
@skip_unless_feature("webp_anim")
def test_write_animated_metadata(tmp_path):
iccp_data = b"<iccp_data>"
exif_data = b"<exif_data>"
xmp_data = b"<xmp_data>"
temp_file = str(tmp_path / "temp.webp")
with Image.open("Tests/images/anim_frame1.webp") as frame1:
with Image.open("Tests/images/anim_frame2.webp") as frame2:
frame1.save(
temp_file,
save_all=True,
append_images=[frame2, frame1, frame2],
icc_profile=iccp_data,
exif=exif_data,
xmp=xmp_data,
)
assert "xmp" not in frame1.info
assert frame1.getxmp() == {}
with Image.open(temp_file) as image:
assert "icc_profile" in image.info
assert "exif" in image.info
assert "xmp" in image.info
assert iccp_data == image.info["icc_profile"]
assert exif_data == image.info["exif"]
assert xmp_data == image.info["xmp"]
assert xmp_data == image.getxmp()