done

complete/src/main/java/hello/HelloController.java

@@ -7,7 +7,8 @@ import org.springframework.web.bind.annotation.RequestMapping;
 public class HelloController {
     
     @RequestMapping("/")
-    public String index() {
+    public String index()
+    {
         return "Greetings from Spring Boot!";
     }
     

initial/pom.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
     <groupId>org.springframework</groupId>
@@ -18,6 +18,23 @@
             <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>
@@ -34,4 +51,4 @@
         </plugins>
     </build>
 
-</project>
+</project>

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

@@ -1,15 +1,17 @@
+
 package hello;
 
+
+import org.springframework.web.bind.annotation.RequestMethod;
 import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.bind.annotation.RequestMapping;
 
-@RestController//meaning it's ready for use by Spring MVC to handle web requests.
+@RestController
 public class HelloController {
-    
-    @RequestMapping("/greeting")//to invoke index method
-    public String index()
-    {
+
+    @RequestMapping(method = RequestMethod.GET, value = "/index")
+    public String index() {
         return "Greetings from Spring Boot!";
     }
-    
-}
+
+}

initial/src/test/java/hello/HelloControllorIT.java

@@ -0,0 +1,40 @@
+package hello;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.net.URL;
+
+import static org.hamcrest.Matchers.equalTo;
+import static org.junit.Assert.assertThat;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+public class HelloControllorIT {
+    @LocalServerPort
+    private int port;
+
+    private URL base;
+
+    @Autowired
+    private TestRestTemplate template;
+
+    @Before
+    public void setUp() throws Exception {
+        this.base = new URL("http://localhost:" + port + "/");
+    }
+
+    @Test
+    public void getHello() throws Exception {
+        ResponseEntity<String> response = template.getForEntity(base.toString(),
+                String.class);
+        assertThat(response.getBody(), equalTo("Greetings from Spring Boot!"));
+    }
+}

initial/src/test/java/hello/HelloControllorTest.java

@@ -0,0 +1,42 @@
+package hello;
+
+import static org.hamcrest.Matchers.*;
+import static org.junit.Assert.*;
+
+import java.net.URL;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import java.net.URL;
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+public class HelloControllorTest {
+
+    @LocalServerPort
+    private int port;
+
+    private URL base;
+
+    @Autowired
+    private TestRestTemplate template;
+
+    @Before
+    public void setUp() throws Exception {
+        this.base = new URL("http://localhost:" + port + "/");
+    }
+
+    @Test
+    public void getHello() throws Exception {
+        ResponseEntity<String> response = template.getForEntity(base.toString(),
+                String.class);
+        assertThat(response.getBody(), equalTo("Greetings from Spring Boot!"));
+    }
+}