python/tests/test_cvec.py: add more tests

[aubio.git] / python / tests / test_cvec.py

diff --git a/python/tests/test_cvec.py b/python/tests/test_cvec.py
index 8691646..80232eb 100755 (executable)
--- a/python/tests/test_cvec.py
+++ b/python/tests/test_cvec.py
@@ -1,15 +1,18 @@
-from numpy.testing import TestCase, run_module_suite
+#! /usr/bin/env python
+
+from numpy.testing import TestCase
 from numpy.testing import assert_equal, assert_almost_equal
-from aubio import cvec
-from numpy import array, shape, pi
+from aubio import cvec, fvec, float_type
+import numpy as np
+
+wrong_type = 'float32' if float_type == 'float64' else 'float64'
 
 class aubio_cvec_test_case(TestCase):
 
     def test_vector_created_with_zeroes(self):
         a = cvec(10)
-        a
-        shape(a.norm)
-        shape(a.phas)
+        assert_equal(a.norm.shape[0], 10 / 2 + 1)
+        assert_equal(a.phas.shape[0], 10 / 2 + 1)
         a.norm[0]
         assert_equal(a.norm, 0.)
         assert_equal(a.phas, 0.)
@@ -33,18 +36,111 @@ class aubio_cvec_test_case(TestCase):
     def test_assign_cvec_norm_slice(self):
         spec = cvec(1024)
         spec.norm[40:100] = 100
-        assert_equal (spec.norm[0:40], 0)
-        assert_equal (spec.norm[40:100], 100)
-        assert_equal (spec.norm[100:-1], 0)
-        assert_equal (spec.phas, 0)
+        assert_equal(spec.norm[0:40], 0)
+        assert_equal(spec.norm[40:100], 100)
+        assert_equal(spec.norm[100:-1], 0)
+        assert_equal(spec.phas, 0)
 
     def test_assign_cvec_phas_slice(self):
         spec = cvec(1024)
-        spec.phas[39:-1] = -pi
-        assert_equal (spec.phas[0:39], 0)
-        assert_equal (spec.phas[39:-1], -pi)
-        assert_equal (spec.norm, 0)
+        spec.phas[39:-1] = -np.pi
+        assert_equal(spec.phas[0:39], 0)
+        assert_equal(spec.phas[39:-1], -np.pi)
+        assert_equal(spec.norm, 0)
+
+    def test_assign_cvec_with_other_cvec(self):
+        """ check dest cvec is still reachable after source was deleted """
+        spec = cvec(1024)
+        a = np.random.rand(1024//2+1).astype(float_type)
+        b = np.random.rand(1024//2+1).astype(float_type)
+        spec.norm = a
+        spec.phas = b
+        new_spec = spec
+        del spec
+        assert_equal(a, new_spec.norm)
+        assert_equal(b, new_spec.phas)
+        assert_equal(id(a), id(new_spec.norm))
+        assert_equal(id(b), id(new_spec.phas))
+
+    def test_pass_to_numpy(self):
+        spec = cvec(1024)
+        norm = spec.norm
+        phas = spec.phas
+        del spec
+        new_spec = cvec(1024)
+        new_spec.norm = norm
+        new_spec.phas = phas
+        assert_equal(norm, new_spec.norm)
+        assert_equal(phas, new_spec.phas)
+        assert_equal(id(norm), id(new_spec.norm))
+        assert_equal(id(phas), id(new_spec.phas))
+        del norm
+        del phas
+        assert_equal(new_spec.norm, 0.)
+        assert_equal(new_spec.phas, 0.)
+        del new_spec
+
+    def test_assign_norm_too_large(self):
+        a = cvec(512)
+        b = fvec(512//2+1 + 4)
+        with self.assertRaises(ValueError):
+            a.norm = b
+
+    def test_assign_norm_too_small(self):
+        a = cvec(512)
+        b = fvec(512//2+1 - 4)
+        with self.assertRaises(ValueError):
+            a.norm = b
+
+    def test_assign_phas_too_large(self):
+        a = cvec(512)
+        b = fvec(512//2+1 + 4)
+        with self.assertRaises(ValueError):
+            a.phas = b
+
+    def test_assign_phas_too_small(self):
+        a = cvec(512)
+        b = fvec(512//2+1 - 4)
+        with self.assertRaises(ValueError):
+            a.phas = b
+
+    def test_cvec_repr(self):
+        win_s = 512
+        c = cvec(win_s)
+        expected_repr = "aubio cvec of {:d} elements".format(win_s//2+1)
+        self.assertEqual(repr(c), expected_repr)
+
+class aubio_cvec_wrong_norm_input(TestCase):
+
+    def test_wrong_length(self):
+        with self.assertRaises(ValueError):
+            cvec(-1)
+
+    def test_set_norm_with_scalar(self):
+        a = cvec(512)
+        with self.assertRaises(ValueError):
+            a.norm = 1
+
+    def test_set_norm_with_scalar_array(self):
+        a = cvec(512)
+        with self.assertRaises(ValueError):
+            a.norm = np.ndarray(1, dtype = 'int')
+
+    def test_set_norm_with_int_array(self):
+        a = cvec(512)
+        with self.assertRaises(ValueError):
+            a.norm = np.zeros(512//2+1, dtype = 'int')
+
+    def test_set_norm_with_wrong_float_array(self):
+        a = cvec(512)
+        with self.assertRaises(ValueError):
+            a.norm = np.zeros(512//2+1, dtype = wrong_type)
+
+    def test_set_norm_with_wrong_2d_array(self):
+        a = cvec(512)
+        with self.assertRaises(ValueError):
+            a.norm = np.zeros((512//2+1, 2), dtype = float_type)
 
 if __name__ == '__main__':
-    from unittest import main
+    from nose2 import main
     main()