initial/pom.xml

             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
+        <dependency>
+            <groupId>io.springfox</groupId>
+            <artifactId>springfox-swagger-ui</artifactId>
+            <version>2.2.2</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>io.springfox</groupId>
+            <artifactId>springfox-swagger2</artifactId>
+            <version>2.2.2</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <properties>

initial/src/main/java/hello/Application.java

 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.ApplicationContext;
+import springfox.documentation.swagger2.annotations.EnableSwagger2;
 
+@EnableSwagger2
 @SpringBootApplication
 public class Application {
     
     public static void main(String[] args) {
+
         ApplicationContext ctx = SpringApplication.run(Application.class, args);
-        
+
+
         System.out.println("Let's inspect the beans provided by Spring Boot:");
         
         String[] beanNames = ctx.getBeanDefinitionNames();

initial/src/main/java/hello/HelloController.java

 package hello;
 
+import io.swagger.annotations.ApiOperation;
+import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.bind.annotation.RequestMapping;
 
 @RestController
 public class HelloController {
-    
-    @RequestMapping("/")
+
+    @ApiOperation(value = "Get Index")
+    @RequestMapping(method = RequestMethod.GET, value = "/index")
     public String index() {
         return "Greetings from Spring Boot!";
     }

initial/src/main/java/hello/app.groovy

+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+class ThisWillActuallyRun {
+
+    @RequestMapping("/")
+    String home() {
+        return "Hello World!"
+    }
+
+}

initial/src/test/java/hello/HelloControllerTest.java

+package hello;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.MediaType;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+@AutoConfigureMockMvc
+public class HelloControllerTest {
+
+    @Autowired
+    private MockMvc mvc;
+
+    @Test
+    public void getHello() throws Exception {
+        mvc.perform(MockMvcRequestBuilders.get("/").accept(MediaType.APPLICATION_JSON))
+                .andExpect(status().isOk())
+                .andExpect(content().string(equalTo("Greetings from Spring Boot!")));
+    }
+}