Pillow/Tests/test_file_icns.py
Jon Dufresne a33939f5c3 Remove unused, open files at top level of tests.
The data read from the file was unused. The files remained opened and
were never explicitly closed.

Fixes some instances of warnings during tests:

"ResourceWarning: unclosed file ..."
2016-11-01 06:34:17 -07:00

88 lines
2.7 KiB
Python

from helper import unittest, PillowTestCase
from PIL import Image
import sys
# sample icon file
TEST_FILE = "Tests/images/pillow.icns"
enable_jpeg2k = hasattr(Image.core, 'jp2klib_version')
class TestFileIcns(PillowTestCase):
def test_sanity(self):
# Loading this icon by default should result in the largest size
# (512x512@2x) being loaded
im = Image.open(TEST_FILE)
im.load()
self.assertEqual(im.mode, "RGBA")
self.assertEqual(im.size, (1024, 1024))
self.assertEqual(im.format, "ICNS")
@unittest.skipIf(sys.platform != 'darwin',
"requires MacOS")
def test_save(self):
im = Image.open(TEST_FILE)
temp_file = self.tempfile("temp.icns")
im.save(temp_file)
reread = Image.open(temp_file)
self.assertEqual(reread.mode, "RGBA")
self.assertEqual(reread.size, (1024, 1024))
self.assertEqual(reread.format, "ICNS")
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(TEST_FILE)
for w, h, r in im.info['sizes']:
wr = w * r
hr = h * r
im2 = Image.open(TEST_FILE)
im2.size = (w, h, r)
im2.load()
self.assertEqual(im2.mode, 'RGBA')
self.assertEqual(im2.size, (wr, hr))
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()