2019cfa180
Lifted from https://github.com/behdad/fonttools/pull/287 Adds new roundtrip tests, but they are disabled.
37 lines
1.4 KiB
Python
37 lines
1.4 KiB
Python
from __future__ import print_function, division, absolute_import
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from fontTools.misc.py23 import *
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from fontTools.misc.fixedTools import fixedToFloat, floatToFixed
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import unittest
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class FixedToolsTest(unittest.TestCase):
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#def test_roundtrip(self):
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# for value in range(-32768, 32768):
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# self.assertEqual(value, floatToFixed(fixedToFloat(value, 14), 14))
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def test_fixedToFloat_precision14(self):
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self.assertEqual(0.8, fixedToFloat(13107, 14))
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self.assertEqual(0.0, fixedToFloat(0, 14))
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self.assertEqual(1.0, fixedToFloat(16384, 14))
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self.assertEqual(-1.0, fixedToFloat(-16384, 14))
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self.assertEqual(0.99994, fixedToFloat(16383, 14))
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self.assertEqual(-0.99994, fixedToFloat(-16383, 14))
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def test_fixedToFloat_precision6(self):
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self.assertAlmostEqual(-9.99, fixedToFloat(-639, 6))
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self.assertAlmostEqual(-10.0, fixedToFloat(-640, 6))
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self.assertAlmostEqual(9.99, fixedToFloat(639, 6))
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self.assertAlmostEqual(10.0, fixedToFloat(640, 6))
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def test_floatToFixed_precision14(self):
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self.assertEqual(13107, floatToFixed(0.8, 14))
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self.assertEqual(16384, floatToFixed(1.0, 14))
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self.assertEqual(16384, floatToFixed(1, 14))
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self.assertEqual(-16384, floatToFixed(-1.0, 14))
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self.assertEqual(-16384, floatToFixed(-1, 14))
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self.assertEqual(0, floatToFixed(0, 14))
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if __name__ == "__main__":
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unittest.main()
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