1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/java/org/apache/commons/lang3/builder/HashCodeBuilderTest.java b/src/test/java/org/apache/commons/lang3/builder/HashCodeBuilderTest.java
index 8741f2104..cf045e946 100644
--- a/src/test/java/org/apache/commons/lang3/builder/HashCodeBuilderTest.java
+++ b/src/test/java/org/apache/commons/lang3/builder/HashCodeBuilderTest.java
@@ -18,6 +18,7 @@
 package org.apache.commons.lang3.builder;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
 import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
@@ -332,6 +333,18 @@ public class HashCodeBuilderTest extends AbstractLangTest {
     }
 
     @Test
+    public void testEquals() {
+        final HashCodeBuilder hcb1 = new HashCodeBuilder(17, 37).append(1).append('a');
+        final HashCodeBuilder hcb2 = new HashCodeBuilder(17, 37).append(1).append('a');
+        final HashCodeBuilder hcb3 = new HashCodeBuilder(17, 37).append(2).append('c');
+        assertEquals(hcb1, hcb1);
+        assertEquals(hcb1, hcb2);
+        assertEquals(hcb2, hcb1);
+        assertNotEquals(hcb1, hcb3);
+        assertNotEquals(hcb2, hcb3);
+    }
+
+    @Test
     public void testFloat() {
         assertEquals(17 * 37, new HashCodeBuilder(17, 37).append(0f).toHashCode());
         final float f = 1234.89f;