Add unit test

Author: Quinn-With-Two-Ns

temporal-sdk/src/main/java/io/temporal/failure/ApplicationFailure.java

@@ -280,7 +280,6 @@ public Builder setType(String type) {
       return this;
     }
 
-
     /**
      * Set the optional error message.
      *

temporal-sdk/src/test/java/io/temporal/failure/ApplicationFailureTest.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2022 Temporal Technologies, Inc. All Rights Reserved.
+ *
+ * Copyright (C) 2012-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * Modifications copyright (C) 2017 Uber Technologies, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this material except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License 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 io.temporal.failure;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class ApplicationFailureTest {
+
+  @Test
+  public void applicationFailureCopy() {
+    ApplicationFailure originalAppFailure =
+        ApplicationFailure.newBuilder().setType("TestType").setMessage("test message").build();
+    ApplicationFailure newAppFailure =
+        ApplicationFailure.newBuilder(originalAppFailure).setNonRetryable(true).build();
+    Assert.assertEquals(originalAppFailure.getType(), newAppFailure.getType());
+    Assert.assertEquals(
+        originalAppFailure.getOriginalMessage(), newAppFailure.getOriginalMessage());
+    Assert.assertNotEquals(originalAppFailure.isNonRetryable(), newAppFailure.isNonRetryable());
+  }
+}