diff --git a/src/test/java/com/uber/cadence/internal/replay/StartChildWorkflowExecutionParametersTest.java b/src/test/java/com/uber/cadence/internal/replay/StartChildWorkflowExecutionParametersTest.java
new file mode 100644
index 000000000..6e0b36248
--- /dev/null
+++ b/src/test/java/com/uber/cadence/internal/replay/StartChildWorkflowExecutionParametersTest.java
@@ -0,0 +1,175 @@
+/**
+ * Copyright 2012-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * <p>Modifications copyright (C) 2017 Uber Technologies, Inc.
+ *
+ * <p>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
+ *
+ * <p>http://aws.amazon.com/apache2.0
+ *
+ * <p>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 com.uber.cadence.internal.replay;
+
+import static junit.framework.TestCase.assertEquals;
+import static junit.framework.TestCase.assertNotNull;
+import static junit.framework.TestCase.assertTrue;
+
+import com.uber.cadence.ParentClosePolicy;
+import com.uber.cadence.WorkflowIdReusePolicy;
+import com.uber.cadence.WorkflowType;
+import com.uber.cadence.internal.common.RetryParameters;
+import java.util.HashMap;
+import java.util.Map;
+import org.junit.Test;
+
+public class StartChildWorkflowExecutionParametersTest {
+
+  @Test
+  public void testBuilderAndGetters() {
+    String domain = "testDomain";
+    String control = "testControl";
+    long executionTimeout = 1000L;
+    byte[] input = {1, 2, 3};
+    String taskList = "testTaskList";
+    long taskTimeout = 2000L;
+    String workflowId = "testWorkflowId";
+    WorkflowType workflowType = new WorkflowType().setName("testWorkflowType");
+    WorkflowIdReusePolicy reusePolicy = WorkflowIdReusePolicy.AllowDuplicate;
+    RetryParameters retryParameters = new RetryParameters();
+    String cronSchedule = "* * * * *";
+    Map<String, Object> memo = new HashMap<>();
+    memo.put("key1", "value1");
+    Map<String, Object> searchAttributes = new HashMap<>();
+    searchAttributes.put("key2", "value2");
+    Map<String, byte[]> context = new HashMap<>();
+    context.put("key3", new byte[] {4, 5, 6});
+    ParentClosePolicy closePolicy = ParentClosePolicy.TERMINATE;
+
+    StartChildWorkflowExecutionParameters parameters =
+        new StartChildWorkflowExecutionParameters.Builder()
+            .setDomain(domain)
+            .setControl(control)
+            .setExecutionStartToCloseTimeoutSeconds(executionTimeout)
+            .setInput(input)
+            .setTaskList(taskList)
+            .setTaskStartToCloseTimeoutSeconds(taskTimeout)
+            .setWorkflowId(workflowId)
+            .setWorkflowType(workflowType)
+            .setWorkflowIdReusePolicy(reusePolicy)
+            .setRetryParameters(retryParameters)
+            .setCronSchedule(cronSchedule)
+            .setMemo(memo)
+            .setSearchAttributes(searchAttributes)
+            .setContext(context)
+            .setParentClosePolicy(closePolicy)
+            .build();
+
+    assertEquals(domain, parameters.getDomain());
+    assertEquals(control, parameters.getControl());
+    assertEquals(executionTimeout, parameters.getExecutionStartToCloseTimeoutSeconds());
+    assertEquals(taskList, parameters.getTaskList());
+    assertEquals(taskTimeout, parameters.getTaskStartToCloseTimeoutSeconds());
+    assertEquals(workflowId, parameters.getWorkflowId());
+    assertEquals(workflowType, parameters.getWorkflowType());
+    assertEquals(reusePolicy, parameters.getWorkflowIdReusePolicy());
+    assertEquals(retryParameters, parameters.getRetryParameters());
+    assertEquals(cronSchedule, parameters.getCronSchedule());
+    assertEquals(memo, parameters.getMemo());
+    assertEquals(searchAttributes, parameters.getSearchAttributes());
+    assertEquals(context, parameters.getContext());
+    assertEquals(closePolicy, parameters.getParentClosePolicy());
+    assertEquals(input, parameters.getInput());
+  }
+
+  @Test
+  public void testEqualsAndHashCode() {
+    Map<String, Object> memo = new HashMap<>();
+    memo.put("key1", "value1");
+
+    RetryParameters retryParameters = new RetryParameters();
+    retryParameters.setInitialIntervalInSeconds(10);
+    retryParameters.setBackoffCoefficient(2.0);
+    retryParameters.setMaximumIntervalInSeconds(100);
+    retryParameters.setMaximumAttempts(5);
+
+    String cronSchedule = "0 * * * *";
+
+    Map<String, Object> searchAttributes = new HashMap<>();
+    searchAttributes.put("attrKey1", "attrValue1");
+
+    Map<String, byte[]> context = new HashMap<>();
+    context.put("contextKey1", new byte[] {4, 5, 6});
+
+    StartChildWorkflowExecutionParameters parameters1 =
+        new StartChildWorkflowExecutionParameters.Builder()
+            .setDomain("domain1")
+            .setControl("control1")
+            .setExecutionStartToCloseTimeoutSeconds(1000L)
+            .setInput(new byte[] {1, 2, 3})
+            .setTaskList("taskList1")
+            .setTaskStartToCloseTimeoutSeconds(2000L)
+            .setWorkflowId("workflowId1")
+            .setWorkflowType(new WorkflowType().setName("workflowType1"))
+            .setWorkflowIdReusePolicy(WorkflowIdReusePolicy.AllowDuplicate)
+            .setRetryParameters(retryParameters)
+            .setCronSchedule(cronSchedule)
+            .setMemo(memo)
+            .setSearchAttributes(searchAttributes)
+            .setContext(context)
+            .setParentClosePolicy(ParentClosePolicy.TERMINATE)
+            .build();
+
+    StartChildWorkflowExecutionParameters parameters2 =
+        new StartChildWorkflowExecutionParameters.Builder()
+            .setDomain("domain1")
+            .setControl("control1")
+            .setExecutionStartToCloseTimeoutSeconds(1000L)
+            .setInput(new byte[] {1, 2, 3})
+            .setTaskList("taskList1")
+            .setTaskStartToCloseTimeoutSeconds(2000L)
+            .setWorkflowId("workflowId1")
+            .setWorkflowType(new WorkflowType().setName("workflowType1"))
+            .setWorkflowIdReusePolicy(WorkflowIdReusePolicy.AllowDuplicate)
+            .setRetryParameters(retryParameters)
+            .setCronSchedule(cronSchedule)
+            .setMemo(memo)
+            .setSearchAttributes(searchAttributes)
+            .setContext(context)
+            .setParentClosePolicy(ParentClosePolicy.TERMINATE)
+            .build();
+
+    assertEquals(parameters1, parameters2);
+    assertEquals(parameters1.hashCode(), parameters2.hashCode());
+  }
+
+  @Test
+  public void testToString() {
+    StartChildWorkflowExecutionParameters parameters =
+        new StartChildWorkflowExecutionParameters.Builder()
+            .setDomain("testDomain")
+            .setControl("testControl")
+            .setExecutionStartToCloseTimeoutSeconds(1000L)
+            .setInput(new byte[] {1, 2, 3})
+            .setTaskList("testTaskList")
+            .setTaskStartToCloseTimeoutSeconds(2000L)
+            .setWorkflowId("testWorkflowId")
+            .setWorkflowType(new WorkflowType().setName("testWorkflowType"))
+            .setWorkflowIdReusePolicy(WorkflowIdReusePolicy.AllowDuplicate)
+            .setRetryParameters(new RetryParameters())
+            .setCronSchedule("* * * * *")
+            .setMemo(new HashMap<>())
+            .setSearchAttributes(new HashMap<>())
+            .setContext(new HashMap<>())
+            .setParentClosePolicy(ParentClosePolicy.TERMINATE)
+            .build();
+
+    assertNotNull(parameters.toString());
+    assertTrue(parameters.toString().contains("testDomain"));
+    assertTrue(parameters.toString().contains("testControl"));
+    assertTrue(parameters.toString().contains("1000"));
+  }
+}