def test_jpeg_exif_preserve(jpg_exif_image, tmp_path):
# in filesystem
dst = tmp_path / "out.jpg"
optimize_jpeg(src=jpg_exif_image, dst=dst)
assert piexif.load(
str(dst))["Exif"] and (piexif.load(str(dst))["Exif"] == piexif.load(
str(jpg_exif_image.resolve()))["Exif"])
# in memory
with open(jpg_exif_image, "rb") as fl:
src_bytes = fl.read()
optimized_img = optimize_jpeg(src=io.BytesIO(src_bytes))
assert piexif.load(optimized_img.getvalue())["Exif"] and (
piexif.load(src_bytes)["Exif"] == piexif.load(
optimized_img.getvalue())["Exif"])
def test_wrong_extension_optim(tmp_path, png_image):
dst = tmp_path.joinpath("image.jpg")
shutil.copy(png_image, dst)
with pytest.raises(Exception):
optimize_jpeg(dst, dst)
def test_dynamic_jpeg_quality(jpg_image, tmp_path):
# check optimization without fast mode
dst = tmp_path / "out.jpg"
optimize_jpeg(src=jpg_image, dst=dst, fast_mode=False)
assert os.path.getsize(dst) < os.path.getsize(jpg_image)