diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 2e0ed03fe3..88aaafd837 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -39,6 +39,7 @@
 *   Leanback extension:
 *   Cast Extension:
 *   Test Utilities:
+    *   Implement `onInit()` and `onRelease()` in `FakeRenderer`.
 *   Remove deprecated symbols:
 *   Demo app:
 
diff --git a/libraries/test_utils/src/main/java/androidx/media3/test/utils/FakeRenderer.java b/libraries/test_utils/src/main/java/androidx/media3/test/utils/FakeRenderer.java
index 4a05ae7a29..4dc8b9df59 100644
--- a/libraries/test_utils/src/main/java/androidx/media3/test/utils/FakeRenderer.java
+++ b/libraries/test_utils/src/main/java/androidx/media3/test/utils/FakeRenderer.java
@@ -61,7 +61,9 @@ public class FakeRenderer extends BaseRenderer {
   private boolean hasPendingBuffer;
   private List<Format> formatsRead;
 
+  public boolean isInitialized;
   public boolean isEnded;
+  public boolean isReleased;
   public int positionResetCount;
   public int sampleBufferReadCount;
   public int enabledCount;
@@ -196,4 +198,14 @@ public class FakeRenderer extends BaseRenderer {
   protected boolean shouldProcessBuffer(long bufferTimeUs, long playbackPositionUs) {
     return bufferTimeUs < playbackPositionUs + SOURCE_READAHEAD_US;
   }
+
+  @Override
+  protected void onInit() {
+    isInitialized = true;
+  }
+
+  @Override
+  protected void onRelease() {
+    isReleased = true;
+  }
 }