Implement equals,hashCode on ExecutionAttributes

Author: dagnir

core/sdk-core/src/main/java/software/amazon/awssdk/core/interceptor/ExecutionAttributes.java

@@ -97,6 +97,26 @@ public ExecutionAttributes copy() {
         return toBuilder().build();
     }
 
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+
+        if (o == null || getClass() != o.getClass()) {
+            return false;
+        }
+
+        ExecutionAttributes that = (ExecutionAttributes) o;
+
+        return attributes != null ? attributes.equals(that.attributes) : that.attributes == null;
+    }
+
+    @Override
+    public int hashCode() {
+        return attributes != null ? attributes.hashCode() : 0;
+    }
+
     public static ExecutionAttributes unmodifiableExecutionAttributes(ExecutionAttributes attributes) {
         return new UnmodifiableExecutionAttributes(attributes);
     }

core/sdk-core/src/test/java/software/amazon/awssdk/core/RequestOverrideConfigurationTest.java

@@ -281,7 +281,7 @@ public void testConfigurationEquals() {
                 .build();
 
         assertThat(request1Override).isEqualTo(request1Override);
-        assertThat(request1Override).isNotEqualTo(request2Override);
+        assertThat(request1Override).isEqualTo(request2Override);
         assertThat(request1Override).isNotEqualTo(null);
     }
 }

core/sdk-core/src/test/java/software/amazon/awssdk/core/interceptor/ExecutionAttributesTest.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License").
+ * You may not use this file except in compliance with the License.
+ * A copy of the License is located at
+ *
+ *  http://aws.amazon.com/apache2.0
+ *
+ * or in the "license" file accompanying this file. This file is distributed
+ * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package software.amazon.awssdk.core.interceptor;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import org.junit.Test;
+
+public class ExecutionAttributesTest {
+    private static final ExecutionAttribute<String> ATTR_1 = new ExecutionAttribute<>("Attr1");
+    private static final ExecutionAttribute<String> ATTR_2 = new ExecutionAttribute<>("Attr2");
+
+    @Test
+    public void equals_identity_returnsTrue() {
+        ExecutionAttributes executionAttributes = ExecutionAttributes.builder()
+                .put(ATTR_1, "hello")
+                .put(ATTR_2, "world")
+                .build();
+
+        assertThat(executionAttributes.equals(executionAttributes)).isTrue();
+    }
+
+    @Test
+    public void equals_sameAttributes_returnsTrue() {
+        ExecutionAttributes executionAttributes1 = ExecutionAttributes.builder()
+                .put(ATTR_1, "hello")
+                .put(ATTR_2, "world")
+                .build();
+
+        ExecutionAttributes executionAttributes2 = ExecutionAttributes.builder()
+                .put(ATTR_1, "hello")
+                .put(ATTR_2, "world")
+                .build();
+
+        assertThat(executionAttributes1).isEqualTo(executionAttributes2);
+        assertThat(executionAttributes2).isEqualTo(executionAttributes1);
+    }
+
+    @Test
+    public void equals_differentAttributes_returnsFalse() {
+        ExecutionAttributes executionAttributes1 = ExecutionAttributes.builder()
+                .put(ATTR_1, "HELLO")
+                .put(ATTR_2, "WORLD")
+                .build();
+
+        ExecutionAttributes executionAttributes2 = ExecutionAttributes.builder()
+                .put(ATTR_1, "hello")
+                .put(ATTR_2, "world")
+                .build();
+
+        assertThat(executionAttributes1).isNotEqualTo(executionAttributes2);
+        assertThat(executionAttributes2).isNotEqualTo(executionAttributes1);
+    }
+
+
+    @Test
+    public void hashCode_objectsEqual_valuesEqual() {
+        ExecutionAttributes executionAttributes1 = ExecutionAttributes.builder()
+                .put(ATTR_1, "hello")
+                .put(ATTR_2, "world")
+                .build();
+
+        ExecutionAttributes executionAttributes2 = ExecutionAttributes.builder()
+                .put(ATTR_1, "hello")
+                .put(ATTR_2, "world")
+                .build();
+
+        assertThat(executionAttributes1.hashCode()).isEqualTo(executionAttributes2.hashCode());
+    }
+}