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)