diff --git a/springboot/src/test/java/io/temporal/samples/springboot/HelloSampleTestMockedActivity.java b/springboot/src/test/java/io/temporal/samples/springboot/HelloSampleTestMockedActivity.java
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@@ -0,0 +1,106 @@
+/*
+ *  Copyright (c) 2020 Temporal Technologies, Inc. All Rights Reserved
+ *
+ *  Copyright 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 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 io.temporal.samples.springboot;
+
+import static org.mockito.ArgumentMatchers.any;
+
+import io.temporal.client.WorkflowClient;
+import io.temporal.client.WorkflowOptions;
+import io.temporal.samples.springboot.hello.HelloActivity;
+import io.temporal.samples.springboot.hello.HelloActivityImpl;
+import io.temporal.samples.springboot.hello.HelloWorkflow;
+import io.temporal.samples.springboot.hello.model.Person;
+import io.temporal.testing.TestWorkflowEnvironment;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.TestInstance;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.Mockito;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.autoconfigure.kafka.KafkaAutoConfiguration;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Primary;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.util.Assert;
+
+@SpringBootTest(classes = HelloSampleTestMockedActivity.Configuration.class)
+@ActiveProfiles("test")
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
+// set this to omit setting up embedded kafka
+@EnableAutoConfiguration(exclude = {KafkaAutoConfiguration.class})
+@DirtiesContext
+public class HelloSampleTestMockedActivity {
+
+  @Autowired ConfigurableApplicationContext applicationContext;
+
+  @Autowired TestWorkflowEnvironment testWorkflowEnvironment;
+
+  @Autowired WorkflowClient workflowClient;
+
+  @Captor ArgumentCaptor<Person> personArgumentCaptor;
+
+  @Autowired HelloActivity activity;
+
+  @BeforeEach
+  void setUp() {
+    applicationContext.start();
+  }
+
+  @Test
+  public void testHello() {
+    HelloWorkflow workflow =
+        workflowClient.newWorkflowStub(
+            HelloWorkflow.class,
+            WorkflowOptions.newBuilder()
+                .setTaskQueue("HelloSampleTaskQueue")
+                .setWorkflowId("HelloSampleTest")
+                .build());
+    String result = workflow.sayHello(new Person("Temporal", "User"));
+    Assert.notNull(result, "Greeting should not be null");
+    Assert.isTrue(result.equals("Hello from mocked activity"), "Invalid result");
+
+    Mockito.verify(activity, Mockito.times(1)).hello(personArgumentCaptor.capture());
+    Assert.notNull(personArgumentCaptor.getValue(), "Invalid input");
+    Assert.isTrue(
+        personArgumentCaptor.getValue().getFirstName().equals("Temporal"),
+        "Invalid person first name");
+    Assert.isTrue(
+        personArgumentCaptor.getValue().getLastName().equals("User"), "invalid person last name");
+  }
+
+  @ComponentScan
+  public static class Configuration {
+    @MockBean private HelloActivityImpl helloActivityMock;
+
+    @Bean
+    @Primary
+    public HelloActivity getTestActivityImpl() {
+      Mockito.when(helloActivityMock.hello(any())).thenReturn("Hello from mocked activity");
+      return helloActivityMock;
+    }
+  }
+}