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Added __copy__ method to Image

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This commit is contained in:
Andrew Murray 2016-03-16 20:23:51 +11:00
parent d3727b523e
commit bb0d312de7
2 changed files with 27 additions and 4 deletions
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2
PIL/Image.py
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@ -1012,6 +1012,8 @@ class Image(object):
im = self.im.copy()
return self._new(im)
__copy__ = copy
def crop(self, box=None):
"""
Returns a rectangular region from this image. The box is a

29
Tests/test_image_copy.py
View File

@ -1,16 +1,37 @@
from helper import unittest, PillowTestCase, hopper
import copy
class TestImageCopy(PillowTestCase):
def test_copy(self):
def copy(mode):
croppedCoordinates = (10, 10, 20, 20)
croppedSize = (10, 10)
for mode in "1", "P", "L", "RGB", "I", "F":
# Internal copy method
im = hopper(mode)
out = im.copy()
self.assertEqual(out.mode, mode)
self.assertEqual(out.mode, im.mode)
self.assertEqual(out.size, im.size)
for mode in "1", "P", "L", "RGB", "I", "F":
copy(mode)
# Python's copy method
im = hopper(mode)
out = copy.copy(im)
self.assertEqual(out.mode, im.mode)
self.assertEqual(out.size, im.size)
# Internal copy method on a cropped image
im = hopper(mode)
out = im.crop(croppedCoordinates).copy()
self.assertEqual(out.mode, im.mode)
self.assertEqual(out.size, croppedSize)
# Python's copy method on a cropped image
im = hopper(mode)
out = copy.copy(im.crop(croppedCoordinates))
self.assertEqual(out.mode, im.mode)
self.assertEqual(out.size, croppedSize)
if __name__ == '__main__':
unittest.main()