from .helper import PillowTestCase, hopper from array import array import sys from PIL import Image class TestImagePutData(PillowTestCase): def test_sanity(self): im1 = hopper() data = list(im1.getdata()) im2 = Image.new(im1.mode, im1.size, 0) im2.putdata(data) self.assert_image_equal(im1, im2) # readonly im2 = Image.new(im1.mode, im2.size, 0) im2.readonly = 1 im2.putdata(data) self.assertFalse(im2.readonly) self.assert_image_equal(im1, im2) def test_long_integers(self): # see bug-200802-systemerror def put(value): im = Image.new("RGBA", (1, 1)) im.putdata([value]) return im.getpixel((0, 0)) self.assertEqual(put(0xFFFFFFFF), (255, 255, 255, 255)) self.assertEqual(put(0xFFFFFFFF), (255, 255, 255, 255)) self.assertEqual(put(-1), (255, 255, 255, 255)) self.assertEqual(put(-1), (255, 255, 255, 255)) if sys.maxsize > 2**32: self.assertEqual(put(sys.maxsize), (255, 255, 255, 255)) else: self.assertEqual(put(sys.maxsize), (255, 255, 255, 127)) def test_pypy_performance(self): im = Image.new('L', (256, 256)) im.putdata(list(range(256))*256) def test_mode_i(self): 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] self.assertEqual(list(im.getdata()), target) def test_mode_F(self): 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] self.assertEqual(list(im.getdata()), target) def test_array_B(self): # 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) self.assertEqual(len(im.getdata()), len(arr)) def test_array_F(self): # 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) self.assertEqual(len(im.getdata()), len(arr))