add the test

Author: nklijia2011

src/test/java/com/uber/cadence/converter/JsonDataConverterTest.java

@@ -19,6 +19,7 @@
 
 import static org.junit.Assert.assertEquals;
 
+import com.uber.cadence.EventType;
 import com.uber.cadence.History;
 import com.uber.cadence.HistoryEvent;
 import com.uber.cadence.TaskList;
@@ -29,13 +30,44 @@
 import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 import java.util.UUID;
 import org.junit.Test;
 
 public class JsonDataConverterTest {
 
   private final DataConverter converter = JsonDataConverter.getInstance();
 
+  static class TestData {
+    String val1;
+    // TBase value;
+    HistoryEvent val2;
+    // TEnum value;
+    EventType val3;
+
+    public TestData(String val1, HistoryEvent val2, EventType val3) {
+      this.val1 = val1;
+      this.val2 = val2;
+      this.val3 = val3;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+      if (this == o) return true;
+      if (!(o instanceof TestData)) return false;
+      TestData testData = (TestData) o;
+      return Objects.equals(val1, testData.val1)
+          && Objects.equals(val2, testData.val2)
+          && val3 == testData.val3;
+    }
+
+    @Override
+    public int hashCode() {
+
+      return Objects.hash(val1, val2, val3);
+    }
+  }
+
   @Test
   public void testThrift() {
     List<HistoryEvent> events = new ArrayList<>();
@@ -57,6 +89,29 @@ public void testThrift() {
     assertEquals(new String(converted, StandardCharsets.UTF_8), history, fromConverted);
   }
 
+  @Test
+  public void testThriftFieldsInPOJO() {
+    WorkflowExecutionStartedEventAttributes started =
+        new WorkflowExecutionStartedEventAttributes()
+            .setExecutionStartToCloseTimeoutSeconds(11)
+            .setIdentity("testIdentity")
+            .setInput("input".getBytes(StandardCharsets.UTF_8))
+            .setWorkflowType(new WorkflowType().setName("workflowType1"))
+            .setTaskList(new TaskList().setName("taskList1"));
+
+    HistoryEvent historyEvent =
+        new HistoryEvent()
+            .setTimestamp(1234567)
+            .setEventId(321)
+            .setWorkflowExecutionStartedEventAttributes(started);
+
+    TestData testData = new TestData("test-thrift", historyEvent, EventType.ActivityTaskCompleted);
+
+    byte[] converted = converter.toData(testData);
+    TestData fromConverted = converter.fromData(converted, TestData.class, TestData.class);
+    assertEquals(new String(converted, StandardCharsets.UTF_8), testData, fromConverted);
+  }
+
   public static void foo(List<UUID> arg) {}
 
   @Test