Pillow/Tests/test_file_icns.py

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from helper import unittest, PillowTestCase
from PIL import Image
# sample icon file
file = "Tests/images/pillow.icns"
data = open(file, "rb").read()
enable_jpeg2k = hasattr(Image.core, 'jp2klib_version')
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class TestFileIcns(PillowTestCase):
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def test_sanity(self):
# Loading this icon by default should result in the largest size
# (512x512@2x) being loaded
im = Image.open(file)
im.load()
self.assertEqual(im.mode, "RGBA")
self.assertEqual(im.size, (1024, 1024))
self.assertEqual(im.format, "ICNS")
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def test_sizes(self):
# Check that we can load all of the sizes, and that the final pixel
# dimensions are as expected
im = Image.open(file)
for w, h, r in im.info['sizes']:
wr = w * r
hr = h * r
im2 = Image.open(file)
im2.size = (w, h, r)
im2.load()
self.assertEqual(im2.mode, 'RGBA')
self.assertEqual(im2.size, (wr, hr))
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def test_older_icon(self):
# 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).
im = Image.open('Tests/images/pillow2.icns')
for w, h, r in im.info['sizes']:
wr = w * r
hr = h * r
im2 = Image.open('Tests/images/pillow2.icns')
im2.size = (w, h, r)
im2.load()
self.assertEqual(im2.mode, 'RGBA')
self.assertEqual(im2.size, (wr, hr))
def test_jp2_icon(self):
# 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
im = Image.open('Tests/images/pillow3.icns')
for w, h, r in im.info['sizes']:
wr = w * r
hr = h * r
im2 = Image.open('Tests/images/pillow3.icns')
im2.size = (w, h, r)
im2.load()
self.assertEqual(im2.mode, 'RGBA')
self.assertEqual(im2.size, (wr, hr))
if __name__ == '__main__':
unittest.main()
# End of file