3 from numpy.testing import TestCase
4 from numpy.testing.utils import assert_equal, assert_almost_equal
5 from numpy import cos, arange
8 from aubio import window, level_lin
10 from aubio import fvec
12 class aubio_window(TestCase):
14 def test_accept_name_and_size(self):
15 window("default", 1024)
17 def test_fail_name_not_string(self):
23 self.fail('non-string window type does not raise a ValueError')
25 def test_fail_size_not_int(self):
27 window("default", "default")
31 self.fail('non-integer window length does not raise a ValueError')
33 def test_compute_hanning_1024(self):
35 aubio_window = window("hanning", size)
36 numpy_window = .5 - .5 * cos(2. * pi * arange(size) / size)
37 assert_almost_equal(aubio_window, numpy_window)
39 class aubio_level_lin(TestCase):
40 def test_accept_fvec(self):
43 def test_fail_not_fvec(self):
49 self.fail('non-number input phase does not raise a TypeError')
51 def test_zeros_is_zeros(self):
52 assert_equal(level_lin(fvec(1024)), 0.)
54 def test_minus_ones_is_one(self):
55 from numpy import ones
56 assert_equal(level_lin(-ones(1024, dtype="float32")), 1.)
58 if __name__ == '__main__':
59 from unittest import main