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Add tests for BGRa

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Arjen Nienhuis 2016-08-07 02:22:06 +02:00
parent 7fb0aaad6a
commit a6661a9a46
1 changed files with 29 additions and 0 deletions
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Tests/test_mode_bgra.py Normal file
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from helper import unittest, PillowTestCase, py3
from PIL import Image
class TestBGRa(PillowTestCase):
def test_bgra(self):
RGBA_RED_50 = b'\xff\x00\x00\x80' # 50% red
BGRa_RED_50 = b'\x00\x00\x80\x80' # 50% red
RGBa_RED_50 = b'\x80\x00\x00\x80' # 50% red
im = Image.frombuffer("BGRa", (1, 1), BGRa_RED_50, 'raw', "BGRa", 0, 1)
self.assertEqual(im.tobytes(), BGRa_RED_50)
self.assertEqual(im.tobytes('raw', 'RGBa'), RGBa_RED_50)
im = Image.frombuffer("RGBA", (1, 1), BGRa_RED_50, "raw", "BGRa", 4, 1)
self.assertEqual(im.tobytes(), RGBA_RED_50)
im = im.convert('BGRa')
self.assertEqual(im.tobytes(), BGRa_RED_50)
self.assertEqual(im.load()[0, 0], (0x00, 0x00, 0x80, 0x80))
im = im.convert('RGBA')
self.assertEqual(im.tobytes(), RGBA_RED_50)
self.assertEqual(im.load()[0, 0], (0xff, 0x00, 0x00, 0x80))
if __name__ == '__main__':
unittest.main()