mirror of https://github.com/KLayout/klayout.git
67 lines
1.9 KiB
Python
67 lines
1.9 KiB
Python
# KLayout Layout Viewer
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# Copyright (C) 2006-2024 Matthias Koefferlein
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import pya
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import unittest
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import os
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import sys
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def compare(pb1, pb2):
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if pb1.width() != pb2.width() or pb1.height() != pb2.height():
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return False
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for x in range(0, pb1.width()):
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for y in range(0, pb1.height()):
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if pb1.pixel(x, y) != pb2.pixel(x, y):
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return False
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return True
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class LAYPixelBufferTests(unittest.TestCase):
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def test_1(self):
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pb = pya.PixelBuffer(10, 20)
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pb.transparent = True
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pb.fill(0xf0010203)
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png = pb.to_png_data()
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# some range because implementations may differ
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self.assertGreater(len(png), 20)
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self.assertLess(len(png), 200)
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pb_copy = pya.PixelBuffer.from_png_data(png)
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self.assertEqual(compare(pb, pb_copy), True)
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ut_testtmp = os.getenv("TESTTMP", ".")
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tmp = os.path.join(ut_testtmp, "tmp.png")
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pb.write_png(tmp)
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pb_copy = pya.PixelBuffer.read_png(tmp)
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self.assertEqual(compare(pb, pb_copy), True)
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# run unit tests
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if __name__ == '__main__':
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suite = unittest.TestLoader().loadTestsFromTestCase(LAYPixelBufferTests)
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if not unittest.TextTestRunner(verbosity = 1).run(suite).wasSuccessful():
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sys.exit(1)
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