Csip: Add method for checking group lock status

This will be needed for integrating CSIP to BASS.

Bug: 150670922
Bug: 230559809
Tag: #feature
Sponsor: jpawlowski@
Test: atest BluetoothInstrumentationTests
Change-Id: I64de4bb5bf0fe423aa477f419b0be27205616e7c
(cherry picked from commit c6d52967)

android/app/src/com/android/bluetooth/csip/CsipSetCoordinatorService.java

@@ -553,6 +553,17 @@ public class CsipSetCoordinatorService extends ProfileService {
         }
     }
 
+    /**
+     * Check whether a given group is currently locked.
+     * @param groupId unique group identifier
+     * @return true if group is currently locked, otherwise false.
+     *
+     * @hide
+     */
+    public boolean isGroupLocked(int groupId) {
+        return mLocks.containsKey(groupId);
+    }
+
     /**
      * Get collection of group IDs for a given UUID
      * @param uuid

android/app/tests/unit/src/com/android/bluetooth/csip/CsipSetCoordinatorServiceTest.java

@@ -259,10 +259,12 @@ public class CsipSetCoordinatorServiceTest {
                         anyLong());
         mCsipSetCoordinatorNativeInterface.onDeviceAvailable(
                 getByteAddress(mTestDevice), group_id, group_size, 1, uuidLsb, uuidMsb);
+        Assert.assertFalse(mService.isGroupLocked(group_id));
 
         UUID lock_uuid = mService.lockGroup(group_id, mCsipSetCoordinatorLockCallback);
         Assert.assertNotNull(lock_uuid);
         verify(mCsipSetCoordinatorNativeInterface, times(1)).groupLockSet(eq(group_id), eq(true));
+        Assert.assertTrue(mService.isGroupLocked(group_id));
 
         doCallRealMethod()
                 .when(mCsipSetCoordinatorNativeInterface)
@@ -283,6 +285,7 @@ public class CsipSetCoordinatorServiceTest {
 
         mCsipSetCoordinatorNativeInterface.onGroupLockChanged(
                 group_id, false, IBluetoothCsipSetCoordinator.CSIS_GROUP_LOCK_SUCCESS);
+        Assert.assertFalse(mService.isGroupLocked(group_id));
 
         try {
             verify(mCsipSetCoordinatorLockCallback, times(1))
@@ -311,10 +314,12 @@ public class CsipSetCoordinatorServiceTest {
                         anyLong());
         mCsipSetCoordinatorNativeInterface.onDeviceAvailable(
                 getByteAddress(mTestDevice), group_id, group_size, 1, uuidLsb, uuidMsb);
+        Assert.assertFalse(mService.isGroupLocked(group_id));
 
         UUID lock_uuid = mService.lockGroup(group_id, mCsipSetCoordinatorLockCallback);
         verify(mCsipSetCoordinatorNativeInterface, times(1)).groupLockSet(eq(group_id), eq(true));
         Assert.assertNotNull(lock_uuid);
+        Assert.assertTrue(mService.isGroupLocked(group_id));
 
         lock_uuid = mService.lockGroup(group_id, mCsipSetCoordinatorLockCallback);
         verify(mCsipSetCoordinatorNativeInterface, times(1)).groupLockSet(eq(group_id), eq(true));