diff --git a/testutils/src/main/java/com/google/android/exoplayer2/testutil/FakeSampleStream.java b/testutils/src/main/java/com/google/android/exoplayer2/testutil/FakeSampleStream.java
index 67c444f72a..0edef520f3 100644
--- a/testutils/src/main/java/com/google/android/exoplayer2/testutil/FakeSampleStream.java
+++ b/testutils/src/main/java/com/google/android/exoplayer2/testutil/FakeSampleStream.java
@@ -164,7 +164,7 @@ public final class FakeSampleStream implements SampleStream {
 
   @Override
   public boolean isReady() {
-    return true;
+    return !readFormat || readEOSBuffer || !fakeSampleStreamItems.isEmpty();
   }
 
   @Override