Pillow/Tests/test_lib_image.py

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from helper import unittest, PillowTestCase
from PIL import Image
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class TestLibImage(PillowTestCase):
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def test_setmode(self):
im = Image.new("L", (1, 1), 255)
im.im.setmode("1")
self.assertEqual(im.im.getpixel((0, 0)), 255)
im.im.setmode("L")
self.assertEqual(im.im.getpixel((0, 0)), 255)
im = Image.new("1", (1, 1), 1)
im.im.setmode("L")
self.assertEqual(im.im.getpixel((0, 0)), 255)
im.im.setmode("1")
self.assertEqual(im.im.getpixel((0, 0)), 255)
im = Image.new("RGB", (1, 1), (1, 2, 3))
im.im.setmode("RGB")
self.assertEqual(im.im.getpixel((0, 0)), (1, 2, 3))
im.im.setmode("RGBA")
self.assertEqual(im.im.getpixel((0, 0)), (1, 2, 3, 255))
im.im.setmode("RGBX")
self.assertEqual(im.im.getpixel((0, 0)), (1, 2, 3, 255))
im.im.setmode("RGB")
self.assertEqual(im.im.getpixel((0, 0)), (1, 2, 3))
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self.assertRaises(ValueError, im.im.setmode, "L")
self.assertRaises(ValueError, im.im.setmode, "RGBABCDE")
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if __name__ == '__main__':
unittest.main()