diff --git a/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystem.java b/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystem.java
index ab289ea6f0817..f876e1ad4b886 100644
--- a/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystem.java
+++ b/services/core/java/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystem.java
@@ -901,7 +901,6 @@ public class HdmiCecLocalDeviceAudioSystem extends HdmiCecLocalDeviceSource {
 
     @ServiceThreadOnly
     void setArcStatus(boolean enabled) {
-        // TODO(shubang): add tests
         assertRunOnServiceThread();
 
         HdmiLogger.debug("Set Arc Status[old:%b new:%b]", mArcEstablished, enabled);
diff --git a/services/tests/servicestests/src/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystemTest.java b/services/tests/servicestests/src/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystemTest.java
index dd98c4b09b78a..09dd3e3e50dbf 100644
--- a/services/tests/servicestests/src/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystemTest.java
+++ b/services/tests/servicestests/src/com/android/server/hdmi/HdmiCecLocalDeviceAudioSystemTest.java
@@ -537,6 +537,15 @@ public class HdmiCecLocalDeviceAudioSystemTest {
         assertThat(mNativeWrapper.getOnlyResultMessage()).isEqualTo(expectedMessage);
     }
 
+    @Test
+    public void setArcStatus() {
+        mHdmiCecLocalDeviceAudioSystem.setArcStatus(true);
+        assertThat(mHdmiCecLocalDeviceAudioSystem.isArcEnabled()).isTrue();
+
+        mHdmiCecLocalDeviceAudioSystem.setArcStatus(false);
+        assertThat(mHdmiCecLocalDeviceAudioSystem.isArcEnabled()).isFalse();
+    }
+
     @Test
     @Ignore("b/151150320")
     public void handleSystemAudioModeRequest_fromNonTV_tVNotSupport() {