Pillow/Tests/test_image_quantize.py
2014-07-07 20:03:50 +03:00

36 lines
753 B
Python

from helper import unittest, PillowTestCase, lena
from PIL import Image
class TestImageQuantize(PillowTestCase):
def test_sanity(self):
im = lena()
im = im.quantize()
self.assert_image(im, "P", im.size)
im = lena()
im = im.quantize(palette=lena("P"))
self.assert_image(im, "P", im.size)
def test_octree_quantize(self):
im = lena()
im = im.quantize(100, Image.FASTOCTREE)
self.assert_image(im, "P", im.size)
assert len(im.getcolors()) == 100
def test_rgba_quantize(self):
im = lena('RGBA')
im.quantize()
self.assertRaises(Exception, lambda: im.quantize(method=0))
if __name__ == '__main__':
unittest.main()
# End of file