Pillow/Tests/test_image_putalpha.py
Brian Crowell ad784eb808 py3k: Import Christoph Gohlke's test suite
This is Christoph Gohlke's test suite from his personal PIL package found
at http://www.lfd.uci.edu/~gohlke/pythonlibs/.

This is just to bring it in as a separate commit. Future commits will align
it with Pillow.
2013-01-10 08:46:39 -06:00

44 lines
1.0 KiB
Python

from tester import *
from PIL import Image
def test_interface():
im = Image.new("RGBA", (1, 1), (1, 2, 3, 0))
assert_equal(im.getpixel((0, 0)), (1, 2, 3, 0))
im = Image.new("RGBA", (1, 1), (1, 2, 3))
assert_equal(im.getpixel((0, 0)), (1, 2, 3, 255))
im.putalpha(Image.new("L", im.size, 4))
assert_equal(im.getpixel((0, 0)), (1, 2, 3, 4))
im.putalpha(5)
assert_equal(im.getpixel((0, 0)), (1, 2, 3, 5))
def test_promote():
im = Image.new("L", (1, 1), 1)
assert_equal(im.getpixel((0, 0)), 1)
im.putalpha(2)
assert_equal(im.mode, 'LA')
assert_equal(im.getpixel((0, 0)), (1, 2))
im = Image.new("RGB", (1, 1), (1, 2, 3))
assert_equal(im.getpixel((0, 0)), (1, 2, 3))
im.putalpha(4)
assert_equal(im.mode, 'RGBA')
assert_equal(im.getpixel((0, 0)), (1, 2, 3, 4))
def test_readonly():
im = Image.new("RGB", (1, 1), (1, 2, 3))
im.readonly = 1
im.putalpha(4)
assert_false(im.readonly)
assert_equal(im.mode, 'RGBA')
assert_equal(im.getpixel((0, 0)), (1, 2, 3, 4))