Add VisibleForTesting annotation to NRU

Adds VisibleForTesting annotation to
NotificationRankingUpdate.isFdNotNullAndClosed, to check that this
function is only used in tests.

Test: atest NotificationRankingUpdate
Bug: 249848655
Change-Id: I034337c2a79c77053bf927bfd82588563fab7b19

1 files changed, 2 insertions, 0 deletions

diff --git a/core/java/android/service/notification/NotificationRankingUpdate.java b/core/java/android/service/notification/NotificationRankingUpdate.java
index 79c8fb4a6620..c82a4cabaddd 100644
--- a/core/java/android/service/notification/NotificationRankingUpdate.java
+++ b/core/java/android/service/notification/NotificationRankingUpdate.java
@@ -26,6 +26,7 @@ import android.system.ErrnoException;
 import android.system.OsConstants;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.VisibleForTesting;
 
 import com.android.internal.config.sysui.SystemUiSystemPropertiesFlags;
 
@@ -138,6 +139,7 @@ public class NotificationRankingUpdate implements Parcelable {
      *
      * @hide
      */
+    @VisibleForTesting(otherwise = VisibleForTesting.NONE)
     public final boolean isFdNotNullAndClosed() {
         return mRankingMapFd != null && mRankingMapFd.getFd() == -1;
     }