Add test for AudioDescriptor.getEncapsulationType.

Test: atest AudioManagerTest
Bug: 184396628
Change-Id: I579274e8d8a3bc8ecae38de0e942333afe49c4bf
diff --git a/tests/tests/media/src/android/media/cts/AudioManagerTest.java b/tests/tests/media/src/android/media/cts/AudioManagerTest.java
index 87e69b5..56df011 100644
--- a/tests/tests/media/src/android/media/cts/AudioManagerTest.java
+++ b/tests/tests/media/src/android/media/cts/AudioManagerTest.java
@@ -108,6 +108,9 @@
     private final static long POLL_TIME_PLAY_MUSIC = 2000;
     private final static long TIME_TO_PLAY = 2000;
     private final static String APPOPS_OP_STR = "android:write_settings";
+    private final static Set<Integer> ALL_KNOWN_ENCAPSULATION_TYPES = new HashSet<>() {{
+            add(AudioProfile.AUDIO_ENCAPSULATION_TYPE_IEC61937);
+    }};
     private final static Set<Integer> ALL_ENCAPSULATION_TYPES = new HashSet<>() {{
             add(AudioProfile.AUDIO_ENCAPSULATION_TYPE_NONE);
             add(AudioProfile.AUDIO_ENCAPSULATION_TYPE_IEC61937);
@@ -1863,6 +1866,8 @@
             for (AudioDescriptor descriptor : device.getAudioDescriptors()) {
                 assertNotEquals(AudioDescriptor.STANDARD_NONE, descriptor.getStandard());
                 assertNotNull(descriptor.getDescriptor());
+                assertTrue(
+                        ALL_KNOWN_ENCAPSULATION_TYPES.contains(descriptor.getEncapsulationType()));
             }
             assertEquals(formats, formatsFromProfile);
             assertEquals(channelMasks, channelMasksFromProfile);