Check for instance equality before attempting to check for the @Memoized hashCode optimization

RELNOTES=n/a

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=233968723

1 files changed, 11 insertions, 0 deletions

diff --git a/value/src/test/java/com/google/auto/value/extension/memoized/MemoizedTest.java b/value/src/test/java/com/google/auto/value/extension/memoized/MemoizedTest.java
index 2cdd6689..a8ea3e3d 100644
--- a/value/src/test/java/com/google/auto/value/extension/memoized/MemoizedTest.java
+++ b/value/src/test/java/com/google/auto/value/extension/memoized/MemoizedTest.java
@@ -382,6 +382,17 @@ public class MemoizedTest {
   }
 
   @Test
+  public void hashCodeEqualsOptimization_hashCodeIgnoredForSameInstance() {
+    HashCodeEqualsOptimization optimizedEquals =
+        new AutoValue_MemoizedTest_HashCodeEqualsOptimization(new EqualsCounter());
+
+    assertThat(optimizedEquals.equals(optimizedEquals)).isTrue();
+
+    assertThat(optimizedEquals.equalsCounter().equalsCount).isEqualTo(0);
+    assertThat(optimizedEquals.hashCodeCount).isEqualTo(0);
+  }
+
+  @Test
   public void hashCodeEqualsOptimization_offWhenEqualsIsFinal() {
     HashCodeEqualsOptimizationOffWhenEqualsIsFinal memoizedHashCodeAndFinalEqualsMethod =
         new AutoValue_MemoizedTest_HashCodeEqualsOptimizationOffWhenEqualsIsFinal();