chore: import upstream snapshot with attribution

test/python/testpipeline/testaudio/testaudiomixer.py

@@ -0,0 +1,29 @@
+"""
+AudioMixer module tests
+"""
+
+import unittest
+
+import numpy as np
+
+from txtai.pipeline import AudioMixer
+
+
+class TestAudioStream(unittest.TestCase):
+    """
+    AudioStream tests.
+    """
+
+    def testAudioStream(self):
+        """
+        Test mixing audio streams
+        """
+
+        audio1 = np.random.rand(2, 5000), 100
+        audio2 = np.random.rand(2, 5000), 100
+
+        mixer = AudioMixer()
+        audio, rate = mixer((audio1, audio2))
+
+        self.assertEqual(audio.shape, (2, 5000))
+        self.assertEqual(rate, 100)