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https://github.com/python-pillow/Pillow.git
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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.
160 lines
6.0 KiB
Python
160 lines
6.0 KiB
Python
from PIL.Image import (
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FLIP_LEFT_RIGHT,
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FLIP_TOP_BOTTOM,
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ROTATE_90,
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ROTATE_180,
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ROTATE_270,
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TRANSPOSE,
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TRANSVERSE,
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)
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from . import helper
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from .helper import PillowTestCase
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class TestImageTranspose(PillowTestCase):
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hopper = {
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mode: helper.hopper(mode).crop((0, 0, 121, 127)).copy()
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for mode in ["L", "RGB", "I;16", "I;16L", "I;16B"]
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}
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def test_flip_left_right(self):
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def transpose(mode):
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im = self.hopper[mode]
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out = im.transpose(FLIP_LEFT_RIGHT)
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self.assertEqual(out.mode, mode)
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self.assertEqual(out.size, im.size)
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x, y = im.size
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self.assertEqual(im.getpixel((1, 1)), out.getpixel((x - 2, 1)))
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self.assertEqual(im.getpixel((x - 2, 1)), out.getpixel((1, 1)))
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self.assertEqual(im.getpixel((1, y - 2)), out.getpixel((x - 2, y - 2)))
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self.assertEqual(im.getpixel((x - 2, y - 2)), out.getpixel((1, y - 2)))
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for mode in self.hopper:
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transpose(mode)
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def test_flip_top_bottom(self):
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def transpose(mode):
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im = self.hopper[mode]
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out = im.transpose(FLIP_TOP_BOTTOM)
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self.assertEqual(out.mode, mode)
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self.assertEqual(out.size, im.size)
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x, y = im.size
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self.assertEqual(im.getpixel((1, 1)), out.getpixel((1, y - 2)))
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self.assertEqual(im.getpixel((x - 2, 1)), out.getpixel((x - 2, y - 2)))
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self.assertEqual(im.getpixel((1, y - 2)), out.getpixel((1, 1)))
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self.assertEqual(im.getpixel((x - 2, y - 2)), out.getpixel((x - 2, 1)))
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for mode in self.hopper:
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transpose(mode)
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def test_rotate_90(self):
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def transpose(mode):
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im = self.hopper[mode]
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out = im.transpose(ROTATE_90)
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self.assertEqual(out.mode, mode)
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self.assertEqual(out.size, im.size[::-1])
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x, y = im.size
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self.assertEqual(im.getpixel((1, 1)), out.getpixel((1, x - 2)))
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self.assertEqual(im.getpixel((x - 2, 1)), out.getpixel((1, 1)))
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self.assertEqual(im.getpixel((1, y - 2)), out.getpixel((y - 2, x - 2)))
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self.assertEqual(im.getpixel((x - 2, y - 2)), out.getpixel((y - 2, 1)))
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for mode in self.hopper:
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transpose(mode)
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def test_rotate_180(self):
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def transpose(mode):
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im = self.hopper[mode]
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out = im.transpose(ROTATE_180)
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self.assertEqual(out.mode, mode)
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self.assertEqual(out.size, im.size)
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x, y = im.size
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self.assertEqual(im.getpixel((1, 1)), out.getpixel((x - 2, y - 2)))
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self.assertEqual(im.getpixel((x - 2, 1)), out.getpixel((1, y - 2)))
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self.assertEqual(im.getpixel((1, y - 2)), out.getpixel((x - 2, 1)))
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self.assertEqual(im.getpixel((x - 2, y - 2)), out.getpixel((1, 1)))
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for mode in self.hopper:
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transpose(mode)
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def test_rotate_270(self):
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def transpose(mode):
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im = self.hopper[mode]
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out = im.transpose(ROTATE_270)
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self.assertEqual(out.mode, mode)
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self.assertEqual(out.size, im.size[::-1])
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x, y = im.size
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self.assertEqual(im.getpixel((1, 1)), out.getpixel((y - 2, 1)))
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self.assertEqual(im.getpixel((x - 2, 1)), out.getpixel((y - 2, x - 2)))
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self.assertEqual(im.getpixel((1, y - 2)), out.getpixel((1, 1)))
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self.assertEqual(im.getpixel((x - 2, y - 2)), out.getpixel((1, x - 2)))
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for mode in self.hopper:
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transpose(mode)
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def test_transpose(self):
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def transpose(mode):
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im = self.hopper[mode]
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out = im.transpose(TRANSPOSE)
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self.assertEqual(out.mode, mode)
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self.assertEqual(out.size, im.size[::-1])
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x, y = im.size
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self.assertEqual(im.getpixel((1, 1)), out.getpixel((1, 1)))
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self.assertEqual(im.getpixel((x - 2, 1)), out.getpixel((1, x - 2)))
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self.assertEqual(im.getpixel((1, y - 2)), out.getpixel((y - 2, 1)))
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self.assertEqual(im.getpixel((x - 2, y - 2)), out.getpixel((y - 2, x - 2)))
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for mode in self.hopper:
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transpose(mode)
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def test_tranverse(self):
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def transpose(mode):
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im = self.hopper[mode]
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out = im.transpose(TRANSVERSE)
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self.assertEqual(out.mode, mode)
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self.assertEqual(out.size, im.size[::-1])
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x, y = im.size
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self.assertEqual(im.getpixel((1, 1)), out.getpixel((y - 2, x - 2)))
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self.assertEqual(im.getpixel((x - 2, 1)), out.getpixel((y - 2, 1)))
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self.assertEqual(im.getpixel((1, y - 2)), out.getpixel((1, x - 2)))
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self.assertEqual(im.getpixel((x - 2, y - 2)), out.getpixel((1, 1)))
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for mode in self.hopper:
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transpose(mode)
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def test_roundtrip(self):
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for mode in self.hopper:
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im = self.hopper[mode]
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def transpose(first, second):
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return im.transpose(first).transpose(second)
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self.assert_image_equal(im, transpose(FLIP_LEFT_RIGHT, FLIP_LEFT_RIGHT))
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self.assert_image_equal(im, transpose(FLIP_TOP_BOTTOM, FLIP_TOP_BOTTOM))
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self.assert_image_equal(im, transpose(ROTATE_90, ROTATE_270))
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self.assert_image_equal(im, transpose(ROTATE_180, ROTATE_180))
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self.assert_image_equal(
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im.transpose(TRANSPOSE), transpose(ROTATE_90, FLIP_TOP_BOTTOM)
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)
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self.assert_image_equal(
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im.transpose(TRANSPOSE), transpose(ROTATE_270, FLIP_LEFT_RIGHT)
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)
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self.assert_image_equal(
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im.transpose(TRANSVERSE), transpose(ROTATE_90, FLIP_LEFT_RIGHT)
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)
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self.assert_image_equal(
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im.transpose(TRANSVERSE), transpose(ROTATE_270, FLIP_TOP_BOTTOM)
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)
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self.assert_image_equal(
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im.transpose(TRANSVERSE), transpose(ROTATE_180, TRANSPOSE)
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)
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