Test AudioManager.getHalVersion.

Verify the returned value is not 0.

Bug: 195401076
Test: atest AudioManagerTest
Change-Id: Ia7ac6b08f1e26dc1dff675f8179d690eb57662c2
diff --git a/tests/tests/media/audio/src/android/media/audio/cts/AudioManagerTest.java b/tests/tests/media/audio/src/android/media/audio/cts/AudioManagerTest.java
index 80a7983..ca8d1ec 100644
--- a/tests/tests/media/audio/src/android/media/audio/cts/AudioManagerTest.java
+++ b/tests/tests/media/audio/src/android/media/audio/cts/AudioManagerTest.java
@@ -2022,6 +2022,10 @@
         }
     }
 
+    public void testGetHalVersion() {
+        assertNotEquals(null, AudioManager.getHalVersion());
+    }
+
     private void assertStreamVolumeEquals(int stream, int expectedVolume) throws Exception {
         assertStreamVolumeEquals(stream, expectedVolume,
                 "Unexpected stream volume for stream=" + stream);