1 files changed, 143 insertions, 0 deletions
diff --git a/python/tests/test_fvec.py b/python/tests/test_fvec.py
new file mode 100755
index 0000000..4ea5533
--- /dev/null
+++ b/python/tests/test_fvec.py
@@ -0,0 +1,143 @@
+#! /usr/bin/env python
+
+from unittest import main
+import numpy as np
+from numpy.testing import TestCase, assert_equal, assert_almost_equal
+from aubio import fvec, zero_crossing_rate, alpha_norm, min_removal
+from aubio import float_type
+
+wrong_type = 'float32' if float_type == 'float64' else 'float64'
+
+default_size = 512
+
+class aubio_fvec_test_case(TestCase):
+
+    def test_vector_created_with_zeroes(self):
+        a = fvec(10)
+        assert a.dtype == float_type
+        assert a.shape == (10,)
+        assert_equal(a, 0)
+
+    def test_vector_create_with_list(self):
+        a = fvec([0, 1, 2, 3])
+        assert a.dtype == float_type
+        assert a.shape == (4,)
+        assert_equal(list(range(4)), a)
+
+    def test_vector_assign_element(self):
+        a = fvec(default_size)
+        a[0] = 1
+        assert_equal(a[0], 1)
+
+    def test_vector_assign_element_end(self):
+        a = fvec(default_size)
+        a[-1] = 1
+        assert_equal(a[-1], 1)
+        assert_equal(a[len(a)-1], 1)
+
+    def test_vector(self):
+        a = fvec()
+        len(a)
+        _ = a[0]
+        np.array(a)
+        a = fvec(1)
+        a = fvec(10)
+        _ = a.T
+
+class aubio_fvec_wrong_values(TestCase):
+
+    def test_negative_length(self):
+        """ test creating fvec with negative length fails (pure python) """
+        self.assertRaises(ValueError, fvec, -10)
+
+    def test_zero_length(self):
+        """ test creating fvec with zero length fails (pure python) """
+        self.assertRaises(ValueError, fvec, 0)
+
+    def test_out_of_bound(self):
+        """ test assiging fvec out of bounds fails (pure python) """
+        a = fvec(2)
+        self.assertRaises(IndexError, a.__getitem__, 3)
+        self.assertRaises(IndexError, a.__getitem__, 2)
+
+class aubio_wrong_fvec_input(TestCase):
+    """ uses min_removal to test PyAubio_IsValidVector """
+
+    def test_no_input(self):
+        self.assertRaises(TypeError, min_removal)
+
+    def test_none(self):
+        self.assertRaises(ValueError, min_removal, None)
+
+    def test_wrong_scalar(self):
+        a = np.array(10, dtype=float_type)
+        self.assertRaises(ValueError, min_removal, a)
+
+    def test_wrong_dimensions(self):
+        a = np.array([[[1, 2], [3, 4]]], dtype=float_type)
+        self.assertRaises(ValueError, min_removal, a)
+
+    def test_wrong_array_size(self):
+        x = np.array([], dtype=float_type)
+        self.assertRaises(ValueError, min_removal, x)
+
+    def test_wrong_type(self):
+        a = np.zeros(10, dtype=wrong_type)
+        self.assertRaises(ValueError, min_removal, a)
+
+    def test_wrong_list_input(self):
+        self.assertRaises(ValueError, min_removal, [0., 1.])
+
+    def test_good_input(self):
+        a = np.zeros(10, dtype=float_type)
+        assert_equal(np.zeros(10, dtype=float_type), min_removal(a))
+
+class aubio_alpha_norm(TestCase):
+
+    def test_alpha_norm_of_random(self):
+        x = np.random.rand(1024).astype(float_type)
+        alpha = np.random.rand() * 5.
+        x_alpha_norm = (np.sum(np.abs(x)**alpha)/len(x))**(1/alpha)
+        assert_almost_equal(alpha_norm(x, alpha), x_alpha_norm, decimal = 5)
+
+class aubio_zero_crossing_rate_test(TestCase):
+
+    def test_zero_crossing_rate(self):
+        a = np.array([0, 1, -1], dtype=float_type)
+        assert_almost_equal(zero_crossing_rate(a), 1./3.)
+
+    def test_zero_crossing_rate_zeros(self):
+        a = np.zeros(100, dtype=float_type)
+        self.assertEqual(zero_crossing_rate(a), 0)
+
+    def test_zero_crossing_rate_minus_ones(self):
+        a = np.ones(100, dtype=float_type)
+        self.assertEqual(zero_crossing_rate(a), 0)
+
+    def test_zero_crossing_rate_plus_ones(self):
+        a = np.ones(100, dtype=float_type)
+        self.assertEqual(zero_crossing_rate(a), 0)
+
+class aubio_fvec_min_removal(TestCase):
+
+    def test_fvec_min_removal_of_array(self):
+        a = np.array([20, 1, 19], dtype=float_type)
+        b = min_removal(a)
+        assert_equal(b, [19, 0, 18])
+
+class aubio_fvec_test_memory(TestCase):
+
+    def test_pass_to_numpy(self):
+        a = fvec(10)
+        a[:] = 1.
+        b = a
+        del a
+        assert_equal(b, 1.)
+        c = fvec(10)
+        c = b
+        del b
+        assert_equal(c, 1.)
+        del c
+
+if __name__ == '__main__':
+    main()