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128 lines
3.7 KiB
Python
128 lines
3.7 KiB
Python
import io
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import sys
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import pytest
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from PIL import IcnsImagePlugin, Image
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from .helper import assert_image_equal, assert_image_similar
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# sample icon file
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TEST_FILE = "Tests/images/pillow.icns"
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ENABLE_JPEG2K = hasattr(Image.core, "jp2klib_version")
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def test_sanity():
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# Loading this icon by default should result in the largest size
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# (512x512@2x) being loaded
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with Image.open(TEST_FILE) as im:
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# Assert that there is no unclosed file warning
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pytest.warns(None, im.load)
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assert im.mode == "RGBA"
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assert im.size == (1024, 1024)
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assert im.format == "ICNS"
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@pytest.mark.skipif(sys.platform != "darwin", reason="Requires macOS")
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def test_save(tmp_path):
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temp_file = str(tmp_path / "temp.icns")
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with Image.open(TEST_FILE) as im:
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im.save(temp_file)
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with Image.open(temp_file) as reread:
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assert reread.mode == "RGBA"
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assert reread.size == (1024, 1024)
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assert reread.format == "ICNS"
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@pytest.mark.skipif(sys.platform != "darwin", reason="Requires macOS")
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def test_save_append_images(tmp_path):
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temp_file = str(tmp_path / "temp.icns")
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provided_im = Image.new("RGBA", (32, 32), (255, 0, 0, 128))
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with Image.open(TEST_FILE) as im:
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im.save(temp_file, append_images=[provided_im])
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with Image.open(temp_file) as reread:
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assert_image_similar(reread, im, 1)
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with Image.open(temp_file) as reread:
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reread.size = (16, 16, 2)
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reread.load()
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assert_image_equal(reread, provided_im)
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def test_sizes():
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# Check that we can load all of the sizes, and that the final pixel
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# dimensions are as expected
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with Image.open(TEST_FILE) as im:
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for w, h, r in im.info["sizes"]:
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wr = w * r
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hr = h * r
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im.size = (w, h, r)
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im.load()
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assert im.mode == "RGBA"
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assert im.size == (wr, hr)
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# Check that we cannot load an incorrect size
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with pytest.raises(ValueError):
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im.size = (1, 1)
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def test_older_icon():
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# This icon was made with Icon Composer rather than iconutil; it still
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# uses PNG rather than JP2, however (since it was made on 10.9).
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with Image.open("Tests/images/pillow2.icns") as im:
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for w, h, r in im.info["sizes"]:
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wr = w * r
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hr = h * r
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with Image.open("Tests/images/pillow2.icns") as im2:
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im2.size = (w, h, r)
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im2.load()
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assert im2.mode == "RGBA"
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assert im2.size == (wr, hr)
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def test_jp2_icon():
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# This icon was made by using Uli Kusterer's oldiconutil to replace
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# the PNG images with JPEG 2000 ones. The advantage of doing this is
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# that OS X 10.5 supports JPEG 2000 but not PNG; some commercial
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# software therefore does just this.
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# (oldiconutil is here: https://github.com/uliwitness/oldiconutil)
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if not ENABLE_JPEG2K:
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return
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with Image.open("Tests/images/pillow3.icns") as im:
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for w, h, r in im.info["sizes"]:
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wr = w * r
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hr = h * r
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with Image.open("Tests/images/pillow3.icns") as im2:
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im2.size = (w, h, r)
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im2.load()
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assert im2.mode == "RGBA"
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assert im2.size == (wr, hr)
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def test_getimage():
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with open(TEST_FILE, "rb") as fp:
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icns_file = IcnsImagePlugin.IcnsFile(fp)
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im = icns_file.getimage()
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assert im.mode == "RGBA"
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assert im.size == (1024, 1024)
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im = icns_file.getimage((512, 512))
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assert im.mode == "RGBA"
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assert im.size == (512, 512)
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def test_not_an_icns_file():
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with io.BytesIO(b"invalid\n") as fp:
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with pytest.raises(SyntaxError):
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IcnsImagePlugin.IcnsFile(fp)
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