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d50445ff30
Similar to the recent adoption of Black. isort is a Python utility to sort imports alphabetically and automatically separate into sections. By using isort, contributors can quickly and automatically conform to the projects style without thinking. Just let the tool do it. Uses the configuration recommended by the Black to avoid conflicts of style. Rewrite TestImageQt.test_deprecated to no rely on import order.
108 lines
3.0 KiB
Python
108 lines
3.0 KiB
Python
from PIL import Image
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from .helper import PillowTestCase, hopper
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class TestModeI16(PillowTestCase):
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original = hopper().resize((32, 32)).convert("I")
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def verify(self, im1):
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im2 = self.original.copy()
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self.assertEqual(im1.size, im2.size)
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pix1 = im1.load()
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pix2 = im2.load()
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for y in range(im1.size[1]):
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for x in range(im1.size[0]):
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xy = x, y
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p1 = pix1[xy]
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p2 = pix2[xy]
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self.assertEqual(
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p1,
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p2,
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("got %r from mode %s at %s, expected %r" % (p1, im1.mode, xy, p2)),
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)
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def test_basic(self):
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# PIL 1.1 has limited support for 16-bit image data. Check that
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# create/copy/transform and save works as expected.
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def basic(mode):
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imIn = self.original.convert(mode)
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self.verify(imIn)
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w, h = imIn.size
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imOut = imIn.copy()
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self.verify(imOut) # copy
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imOut = imIn.transform((w, h), Image.EXTENT, (0, 0, w, h))
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self.verify(imOut) # transform
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filename = self.tempfile("temp.im")
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imIn.save(filename)
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imOut = Image.open(filename)
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self.verify(imIn)
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self.verify(imOut)
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imOut = imIn.crop((0, 0, w, h))
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self.verify(imOut)
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imOut = Image.new(mode, (w, h), None)
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imOut.paste(imIn.crop((0, 0, w // 2, h)), (0, 0))
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imOut.paste(imIn.crop((w // 2, 0, w, h)), (w // 2, 0))
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self.verify(imIn)
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self.verify(imOut)
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imIn = Image.new(mode, (1, 1), 1)
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self.assertEqual(imIn.getpixel((0, 0)), 1)
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imIn.putpixel((0, 0), 2)
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self.assertEqual(imIn.getpixel((0, 0)), 2)
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if mode == "L":
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maximum = 255
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else:
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maximum = 32767
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imIn = Image.new(mode, (1, 1), 256)
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self.assertEqual(imIn.getpixel((0, 0)), min(256, maximum))
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imIn.putpixel((0, 0), 512)
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self.assertEqual(imIn.getpixel((0, 0)), min(512, maximum))
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basic("L")
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basic("I;16")
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basic("I;16B")
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basic("I;16L")
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basic("I")
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def test_tobytes(self):
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def tobytes(mode):
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return Image.new(mode, (1, 1), 1).tobytes()
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order = 1 if Image._ENDIAN == "<" else -1
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self.assertEqual(tobytes("L"), b"\x01")
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self.assertEqual(tobytes("I;16"), b"\x01\x00")
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self.assertEqual(tobytes("I;16B"), b"\x00\x01")
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self.assertEqual(tobytes("I"), b"\x01\x00\x00\x00"[::order])
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def test_convert(self):
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im = self.original.copy()
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self.verify(im.convert("I;16"))
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self.verify(im.convert("I;16").convert("L"))
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self.verify(im.convert("I;16").convert("I"))
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self.verify(im.convert("I;16B"))
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self.verify(im.convert("I;16B").convert("L"))
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self.verify(im.convert("I;16B").convert("I"))
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