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Merge pull request #2009 from uploadcare/fix-cffi-tests
Retain a reference to core image object in PyAccess
This commit is contained in:
wiredfool
GitHub
commit
5514df3ed1
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@ -54,6 +54,9 @@ class PyAccess(object):
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self.xsize = vals['xsize']
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self.xsize = vals['xsize']
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self.ysize = vals['ysize']
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self.ysize = vals['ysize']
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# Keep pointer to im object to prevent dereferencing.
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self._im = img.im
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# Debugging is polluting test traces, only useful here
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# Debugging is polluting test traces, only useful here
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# when hacking on PyAccess
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# when hacking on PyAccess
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# logger.debug("%s", vals)
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# logger.debug("%s", vals)
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@ -1,7 +1,6 @@
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from helper import unittest, PillowTestCase, hopper
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from helper import unittest, PillowTestCase, hopper
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try:
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try:
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import cffi
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from PIL import PyAccess
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from PIL import PyAccess
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except ImportError:
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except ImportError:
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# Skip in setUp()
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# Skip in setUp()
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@ -9,13 +8,99 @@ except ImportError:
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from PIL import Image
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from PIL import Image
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from test_image_putpixel import TestImagePutPixel
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from test_image_getpixel import TestImageGetPixel
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Image.USE_CFFI_ACCESS = True
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class AccessTest(PillowTestCase):
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# initial value
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_init_cffi_access = Image.USE_CFFI_ACCESS
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_need_cffi_access = False
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@classmethod
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def setUpClass(cls):
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Image.USE_CFFI_ACCESS = cls._need_cffi_access
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@classmethod
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def tearDownClass(cls):
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Image.USE_CFFI_ACCESS = cls._init_cffi_access
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class TestImagePutPixel(AccessTest):
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def test_sanity(self):
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im1 = hopper()
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im2 = Image.new(im1.mode, im1.size, 0)
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for y in range(im1.size[1]):
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for x in range(im1.size[0]):
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pos = x, y
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im2.putpixel(pos, im1.getpixel(pos))
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self.assert_image_equal(im1, im2)
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im2 = Image.new(im1.mode, im1.size, 0)
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im2.readonly = 1
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for y in range(im1.size[1]):
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for x in range(im1.size[0]):
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pos = x, y
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im2.putpixel(pos, im1.getpixel(pos))
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self.assertFalse(im2.readonly)
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self.assert_image_equal(im1, im2)
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im2 = Image.new(im1.mode, im1.size, 0)
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pix1 = im1.load()
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pix2 = im2.load()
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for y in range(im1.size[1]):
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for x in range(im1.size[0]):
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pix2[x, y] = pix1[x, y]
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self.assert_image_equal(im1, im2)
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class TestImageGetPixel(AccessTest):
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@staticmethod
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def color(mode):
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bands = Image.getmodebands(mode)
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if bands == 1:
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return 1
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else:
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return tuple(range(1, bands + 1))
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def check(self, mode, c=None):
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if not c:
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c = self.color(mode)
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# check putpixel
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im = Image.new(mode, (1, 1), None)
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im.putpixel((0, 0), c)
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self.assertEqual(
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im.getpixel((0, 0)), c,
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"put/getpixel roundtrip failed for mode %s, color %s" % (mode, c))
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# check inital color
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im = Image.new(mode, (1, 1), c)
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self.assertEqual(
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im.getpixel((0, 0)), c,
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"initial color failed for mode %s, color %s " % (mode, c))
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def test_basic(self):
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for mode in ("1", "L", "LA", "I", "I;16", "I;16B", "F",
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"P", "PA", "RGB", "RGBA", "RGBX", "CMYK", "YCbCr"):
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self.check(mode)
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def test_signedness(self):
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# see https://github.com/python-pillow/Pillow/issues/452
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# pixelaccess is using signed int* instead of uint*
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for mode in ("I;16", "I;16B"):
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self.check(mode, 2**15-1)
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self.check(mode, 2**15)
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self.check(mode, 2**15+1)
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self.check(mode, 2**16-1)
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class TestCffiPutPixel(TestImagePutPixel):
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class TestCffiPutPixel(TestImagePutPixel):
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_need_cffi_access = True
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def setUp(self):
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def setUp(self):
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try:
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try:
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@ -23,11 +108,9 @@ class TestCffiPutPixel(TestImagePutPixel):
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except ImportError:
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except ImportError:
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self.skipTest("No cffi")
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self.skipTest("No cffi")
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def test_put(self):
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self.test_sanity()
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class TestCffiGetPixel(TestImageGetPixel):
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class TestCffiGetPixel(TestImageGetPixel):
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_need_cffi_access = True
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def setUp(self):
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def setUp(self):
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try:
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try:
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@ -35,12 +118,9 @@ class TestCffiGetPixel(TestImageGetPixel):
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except ImportError:
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except ImportError:
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self.skipTest("No cffi")
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self.skipTest("No cffi")
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def test_get(self):
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self.test_basic()
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self.test_signedness()
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class TestCffi(AccessTest):
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class TestCffi(PillowTestCase):
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_need_cffi_access = True
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def setUp(self):
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def setUp(self):
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try:
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try:
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@ -141,8 +221,17 @@ class TestCffi(PillowTestCase):
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# im = Image.new('I;32B', (10, 10), 2**10)
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# im = Image.new('I;32B', (10, 10), 2**10)
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# self._test_set_access(im, 2**13-1)
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# self._test_set_access(im, 2**13-1)
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# ref https://github.com/python-pillow/Pillow/pull/2009
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def test_reference_counting(self):
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size = 10
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for _ in range(10):
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# Do not save references to the image, only to the access object
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px = Image.new('L', (size, 1), 0).load()
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for i in range(size):
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# pixels can contain garbarge if image is released
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self.assertEqual(px[i, 0], 0)
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if __name__ == '__main__':
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if __name__ == '__main__':
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unittest.main()
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unittest.main()
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# End of file
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@ -1,53 +0,0 @@
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from helper import unittest, PillowTestCase
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from PIL import Image
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Image.USE_CFFI_ACCESS = False
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def color(mode):
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bands = Image.getmodebands(mode)
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if bands == 1:
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return 1
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else:
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return tuple(range(1, bands+1))
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class TestImageGetPixel(PillowTestCase):
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def check(self, mode, c=None):
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if not c:
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c = color(mode)
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# check putpixel
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im = Image.new(mode, (1, 1), None)
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im.putpixel((0, 0), c)
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self.assertEqual(
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im.getpixel((0, 0)), c,
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"put/getpixel roundtrip failed for mode %s, color %s" % (mode, c))
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# check inital color
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im = Image.new(mode, (1, 1), c)
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self.assertEqual(
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im.getpixel((0, 0)), c,
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"initial color failed for mode %s, color %s " % (mode, color))
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def test_basic(self):
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for mode in ("1", "L", "LA", "I", "I;16", "I;16B", "F",
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"P", "PA", "RGB", "RGBA", "RGBX", "CMYK", "YCbCr"):
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self.check(mode)
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def test_signedness(self):
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# see https://github.com/python-pillow/Pillow/issues/452
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# pixelaccess is using signed int* instead of uint*
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for mode in ("I;16", "I;16B"):
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self.check(mode, 2**15-1)
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self.check(mode, 2**15)
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self.check(mode, 2**15+1)
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self.check(mode, 2**16-1)
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if __name__ == '__main__':
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unittest.main()
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# End of file
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@ -1,50 +0,0 @@
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from helper import unittest, PillowTestCase, hopper
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from PIL import Image
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Image.USE_CFFI_ACCESS = False
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class TestImagePutPixel(PillowTestCase):
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def test_sanity(self):
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im1 = hopper()
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im2 = Image.new(im1.mode, im1.size, 0)
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for y in range(im1.size[1]):
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for x in range(im1.size[0]):
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pos = x, y
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im2.putpixel(pos, im1.getpixel(pos))
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self.assert_image_equal(im1, im2)
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im2 = Image.new(im1.mode, im1.size, 0)
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im2.readonly = 1
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for y in range(im1.size[1]):
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for x in range(im1.size[0]):
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pos = x, y
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im2.putpixel(pos, im1.getpixel(pos))
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self.assertFalse(im2.readonly)
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self.assert_image_equal(im1, im2)
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im2 = Image.new(im1.mode, im1.size, 0)
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pix1 = im1.load()
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pix2 = im2.load()
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for y in range(im1.size[1]):
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for x in range(im1.size[0]):
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pix2[x, y] = pix1[x, y]
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self.assert_image_equal(im1, im2)
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# see test_image_getpixel for more tests
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if __name__ == '__main__':
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unittest.main()
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# End of file
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