run tests again. (#509)

Author: vincentqb

test/test_batch_consistency.py

@@ -315,3 +315,7 @@ def test_batch_Vol(self):
 
         assert computed.shape == expected.shape, (computed.shape, expected.shape)
         assert torch.allclose(computed, expected)
+
+
+if __name__ == '__main__':
+    unittest.main()

test/test_librosa_compatibility.py

@@ -344,3 +344,7 @@ def test_InverseMelScale(self):
         # torch.dist(spec_lr, spec_ta, p=1)
         # >>> tensor(943.2759)
         assert torch.dist(spec_orig, spec_ta, p=1) < threshold
+
+
+if __name__ == '__main__':
+    unittest.main()

test/test_torchscript_consistency.py

@@ -408,3 +408,7 @@ def test_Vol(self):
             common_utils.TEST_DIR_PATH, 'assets', 'steam-train-whistle-daniel_simon.wav')
         waveform, _ = torchaudio.load(test_filepath)
         _test_script_module(torchaudio.transforms.Vol, waveform, 1.1)
+
+
+if __name__ == '__main__':
+    unittest.main()