131 lines
3.8 KiB
Python
Executable File
131 lines
3.8 KiB
Python
Executable File
#!/usr/bin/python
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import unittest
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import math
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#import logging
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#logging.basicConfig(level = logging.DEBUG)
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from gi.repository import Vips
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Vips.leak_set(True)
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# an expanding zip ... if either of the args is a scalar or a one-element list,
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# duplicate it down the other side
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def zip_expand(x, y):
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# handle singleton list case
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if isinstance(x, list) and len(x) == 1:
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x = x[0]
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if isinstance(y, list) and len(y) == 1:
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y = y[0]
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if isinstance(x, list) and isinstance(y, list):
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return list(zip(x, y))
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elif isinstance(x, list):
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return [[i, y] for i in x]
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elif isinstance(y, list):
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return [[x, j] for j in y]
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else:
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return [[x, y]]
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class TestDraw(unittest.TestCase):
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# test a pair of things which can be lists for approx. equality
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def assertAlmostEqualObjects(self, a, b, places = 4, msg = ''):
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# print 'assertAlmostEqualObjects %s = %s' % (a, b)
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for x, y in zip_expand(a, b):
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self.assertAlmostEqual(x, y, places = places, msg = msg)
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def test_draw_circle(self):
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im = Vips.Image.black(100, 100)
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im = im.draw_circle(100, 50, 50, 25)
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pixel = im(25, 50)
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self.assertEqual(len(pixel), 1)
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self.assertEqual(pixel[0], 100)
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pixel = im(26, 50)
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self.assertEqual(len(pixel), 1)
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self.assertEqual(pixel[0], 0)
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im = Vips.Image.black(100, 100)
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im = im.draw_circle(100, 50, 50, 25, fill = True)
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pixel = im(25, 50)
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self.assertEqual(len(pixel), 1)
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self.assertEqual(pixel[0], 100)
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pixel = im(26, 50)
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self.assertEqual(pixel[0], 100)
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pixel = im(24, 50)
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self.assertEqual(pixel[0], 0)
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def test_draw_flood(self):
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im = Vips.Image.black(100, 100)
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im = im.draw_circle(100, 50, 50, 25)
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im = im.draw_flood(100, 50, 50)
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im2 = Vips.Image.black(100, 100)
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im2 = im.draw_circle(100, 50, 50, 25, fill = True)
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diff = (im - im2).abs().max()
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self.assertEqual(diff, 0)
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def test_draw_image(self):
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im = Vips.Image.black(51, 51)
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im = im.draw_circle(100, 25, 25, 25, fill = True)
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im2 = Vips.Image.black(100, 100)
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im2 = im2.draw_image(im, 25, 25)
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im3 = Vips.Image.black(100, 100)
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im3 = im3.draw_circle(100, 50, 50, 25, fill = True)
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diff = (im2 - im3).abs().max()
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self.assertEqual(diff, 0)
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def test_draw_line(self):
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im = Vips.Image.black(100, 100)
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im = im.draw_line(100, 0, 0, 100, 0)
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pixel = im(0, 0)
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self.assertEqual(len(pixel), 1)
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self.assertEqual(pixel[0], 100)
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pixel = im(0, 1)
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self.assertEqual(len(pixel), 1)
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self.assertEqual(pixel[0], 0)
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def test_draw_mask(self):
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mask = Vips.Image.black(51, 51)
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mask = mask.draw_circle(128, 25, 25, 25, fill = True)
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im = Vips.Image.black(100, 100)
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im = im.draw_mask(200, mask, 25, 25)
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im2 = Vips.Image.black(100, 100)
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im2 = im2.draw_circle(100, 50, 50, 25, fill = True)
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diff = (im - im2).abs().max()
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self.assertEqual(diff, 0)
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def test_draw_rect(self):
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im = Vips.Image.black(100, 100)
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im = im.draw_rect(100, 25, 25, 50, 50, fill = True)
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im2 = Vips.Image.black(100, 100)
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for y in range(25, 75):
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im2 = im2.draw_line(100, 25, y, 74, y)
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diff = (im - im2).abs().max()
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self.assertEqual(diff, 0)
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def test_draw_smudge(self):
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im = Vips.Image.black(100, 100)
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im = im.draw_circle(100, 50, 50, 25, fill = True)
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im2 = im.draw_smudge(10, 10, 50, 50)
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im3 = im.crop(10, 10, 50, 50)
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im4 = im2.draw_image(im3, 10, 10)
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diff = (im4 - im).abs().max()
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self.assertEqual(diff, 0)
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if __name__ == '__main__':
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unittest.main()
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