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import sys
from array import array
from PIL import Image
from .helper import assert_image_equal, hopper
def test_sanity():
im1 = hopper()
data = list(im1.getdata())
im2 = Image.new(im1.mode, im1.size, 0)
im2.putdata(data)
assert_image_equal(im1, im2)
# readonly
im2 = Image.new(im1.mode, im2.size, 0)
im2.readonly = 1
im2.putdata(data)
assert not im2.readonly
assert_image_equal(im1, im2)
def test_long_integers():
# see bug-200802-systemerror
def put(value):
im = Image.new("RGBA", (1, 1))
im.putdata([value])
return im.getpixel((0, 0))
assert put(0xFFFFFFFF) == (255, 255, 255, 255)
assert put(0xFFFFFFFF) == (255, 255, 255, 255)
assert put(-1) == (255, 255, 255, 255)
assert put(-1) == (255, 255, 255, 255)
if sys.maxsize > 2 ** 32:
assert put(sys.maxsize) == (255, 255, 255, 255)
else:
assert put(sys.maxsize) == (255, 255, 255, 127)
def test_pypy_performance():
im = Image.new("L", (256, 256))
im.putdata(list(range(256)) * 256)
def test_mode_i():
src = hopper("L")
data = list(src.getdata())
im = Image.new("I", src.size, 0)
im.putdata(data, 2, 256)
target = [2 * elt + 256 for elt in data]
assert list(im.getdata()) == target
def test_mode_F():
src = hopper("L")
data = list(src.getdata())
im = Image.new("F", src.size, 0)
im.putdata(data, 2.0, 256.0)
target = [2.0 * float(elt) + 256.0 for elt in data]
assert list(im.getdata()) == target
def test_array_B():
# shouldn't segfault
# see https://github.com/python-pillow/Pillow/issues/1008
arr = array("B", [0]) * 15000
im = Image.new("L", (150, 100))
im.putdata(arr)
assert len(im.getdata()) == len(arr)
def test_array_F():
# shouldn't segfault
# see https://github.com/python-pillow/Pillow/issues/1008
im = Image.new("F", (150, 100))
arr = array("f", [0.0]) * 15000
im.putdata(arr)
assert len(im.getdata()) == len(arr)
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