source: python/tests/test_musicutils.py @ efa62ce

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since efa62ce was efa62ce, checked in by Paul Brossier <piem@piem.org>, 5 years ago

ext/py-musicutils.c: complete window implementation

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File size: 1.0 KB
Line 
1#! /usr/bin/env python
2
3from numpy.testing import TestCase
4from numpy.testing.utils import assert_almost_equal
5from aubio import window
6
7class aubio_window(TestCase):
8
9    def test_accept_name_and_size(self):
10        window("default", 1024)
11
12    def test_fail_name_not_string(self):
13        try:
14            window(10, 1024)
15        except ValueError, e:
16            pass
17        else:
18            self.fail('non-string window type does not raise a ValueError')
19
20    def test_fail_size_not_int(self):
21        try:
22            window("default", "default")
23        except ValueError, e:
24            pass
25        else:
26            self.fail('non-integer window length does not raise a ValueError')
27
28    def test_compute_hanning_1024(self):
29        from numpy import cos, arange
30        from math import pi
31        size = 1024
32        aubio_window = window("hanning", size)
33        numpy_window = .5 - .5 * cos(2. * pi * arange(size) / size)
34        assert_almost_equal(aubio_window, numpy_window)
35
36if __name__ == '__main__':
37    from unittest import main
38    main()
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