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67 lines
1.8 KiB
Python
67 lines
1.8 KiB
Python
from test.support import TESTFN, run_unittest
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import os
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import wave
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import struct
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import unittest
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nchannels = 2
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sampwidth = 2
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framerate = 8000
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nframes = 100
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class TestWave(unittest.TestCase):
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def setUp(self):
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self.f = None
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def tearDown(self):
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if self.f is not None:
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self.f.close()
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try:
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os.remove(TESTFN)
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except OSError:
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pass
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def test_it(self, test_rounding=False):
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self.f = wave.open(TESTFN, 'wb')
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self.f.setnchannels(nchannels)
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self.f.setsampwidth(sampwidth)
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if test_rounding:
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self.f.setframerate(framerate - 0.1)
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else:
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self.f.setframerate(framerate)
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self.f.setnframes(nframes)
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output = b'\0' * nframes * nchannels * sampwidth
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self.f.writeframes(output)
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self.f.close()
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self.f = wave.open(TESTFN, 'rb')
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self.assertEqual(nchannels, self.f.getnchannels())
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self.assertEqual(sampwidth, self.f.getsampwidth())
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self.assertEqual(framerate, self.f.getframerate())
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self.assertEqual(nframes, self.f.getnframes())
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self.assertEqual(self.f.readframes(nframes), output)
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def test_fractional_framerate(self):
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"""
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Addresses [ 1512791 ] module wave does no rounding
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Floating point framerates should be rounded, rather than truncated.
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"""
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self.test_it(test_rounding=True)
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def test_issue7681(self):
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self.f = wave.open(TESTFN, 'wb')
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self.f.setnchannels(nchannels)
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self.f.setsampwidth(sampwidth)
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self.f.setframerate(framerate)
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# Don't call setnframes, make _write_header divide to figure it out
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output = b'\0' * nframes * nchannels * sampwidth
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self.f.writeframes(output)
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def test_main():
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run_unittest(TestWave)
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if __name__ == '__main__':
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test_main()
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