import io import os import pytest from PIL import IcnsImagePlugin, Image, _binary, features from .helper import assert_image_equal, assert_image_similar_tofile # sample icon file TEST_FILE = "Tests/images/pillow.icns" ENABLE_JPEG2K = features.check_codec("jpg_2000") def test_sanity(): # Loading this icon by default should result in the largest size # (512x512@2x) being loaded with Image.open(TEST_FILE) as im: # Assert that there is no unclosed file warning with pytest.warns(None) as record: im.load() assert not record assert im.mode == "RGBA" assert im.size == (1024, 1024) assert im.format == "ICNS" def test_save(tmp_path): temp_file = str(tmp_path / "temp.icns") with Image.open(TEST_FILE) as im: im.save(temp_file) with Image.open(temp_file) as reread: assert reread.mode == "RGBA" assert reread.size == (1024, 1024) assert reread.format == "ICNS" file_length = os.path.getsize(temp_file) with open(temp_file, "rb") as fp: fp.seek(4) assert _binary.i32be(fp.read(4)) == file_length def test_save_append_images(tmp_path): temp_file = str(tmp_path / "temp.icns") provided_im = Image.new("RGBA", (32, 32), (255, 0, 0, 128)) with Image.open(TEST_FILE) as im: im.save(temp_file, append_images=[provided_im]) assert_image_similar_tofile(im, temp_file, 1) with Image.open(temp_file) as reread: reread.size = (16, 16, 2) reread.load() assert_image_equal(reread, provided_im) def test_save_fp(): fp = io.BytesIO() with Image.open(TEST_FILE) as im: im.save(fp, format="ICNS") with Image.open(fp) as reread: assert reread.mode == "RGBA" assert reread.size == (1024, 1024) assert reread.format == "ICNS" def test_sizes(): # Check that we can load all of the sizes, and that the final pixel # dimensions are as expected with Image.open(TEST_FILE) as im: for w, h, r in im.info["sizes"]: wr = w * r hr = h * r im.size = (w, h, r) im.load() assert im.mode == "RGBA" assert im.size == (wr, hr) # Check that we cannot load an incorrect size with pytest.raises(ValueError): im.size = (1, 1) def test_older_icon(): # This icon was made with Icon Composer rather than iconutil; it still # uses PNG rather than JP2, however (since it was made on 10.9). with Image.open("Tests/images/pillow2.icns") as im: for w, h, r in im.info["sizes"]: wr = w * r hr = h * r with Image.open("Tests/images/pillow2.icns") as im2: im2.size = (w, h, r) im2.load() assert im2.mode == "RGBA" assert im2.size == (wr, hr) def test_jp2_icon(): # This icon was made by using Uli Kusterer's oldiconutil to replace # the PNG images with JPEG 2000 ones. The advantage of doing this is # that OS X 10.5 supports JPEG 2000 but not PNG; some commercial # software therefore does just this. # (oldiconutil is here: https://github.com/uliwitness/oldiconutil) if not ENABLE_JPEG2K: return with Image.open("Tests/images/pillow3.icns") as im: for w, h, r in im.info["sizes"]: wr = w * r hr = h * r with Image.open("Tests/images/pillow3.icns") as im2: im2.size = (w, h, r) im2.load() assert im2.mode == "RGBA" assert im2.size == (wr, hr) def test_getimage(): with open(TEST_FILE, "rb") as fp: icns_file = IcnsImagePlugin.IcnsFile(fp) im = icns_file.getimage() assert im.mode == "RGBA" assert im.size == (1024, 1024) im = icns_file.getimage((512, 512)) assert im.mode == "RGBA" assert im.size == (512, 512) def test_not_an_icns_file(): with io.BytesIO(b"invalid\n") as fp: with pytest.raises(SyntaxError): IcnsImagePlugin.IcnsFile(fp) def test_icns_decompression_bomb(): with Image.open( "Tests/images/oom-8ed3316a4109213ca96fb8a256a0bfefdece1461.icns" ) as im: with pytest.raises(Image.DecompressionBombError): im.load()