Replace curl-based test with Spring Mock MVC

complete/build.gradle

 
 dependencies {
     compile("org.springframework.boot:spring-boot-starter-web")
-    testCompile("junit:junit")
+    testCompile('org.springframework.boot:spring-boot-starter-test')
 }
 
 task wrapper(type: Wrapper) {

complete/pom.xml

             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.jayway.jsonpath</groupId>
+            <artifactId>json-path</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <properties>

complete/src/test/java/hello/GreetingControllerTests.java

+/*
+ * Copyright 2016 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License 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 hello;
+
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.jsonPath;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+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.SpringApplicationConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.test.context.web.WebAppConfiguration;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+import org.springframework.web.context.WebApplicationContext;
+
+/**
+ * @author Greg Turnquist
+ */
+@RunWith(SpringJUnit4ClassRunner.class)
+@SpringApplicationConfiguration(classes = Application.class)
+@WebAppConfiguration
+public class GreetingControllerTests {
+
+	@Autowired
+	private WebApplicationContext ctx;
+
+	private MockMvc mockMvc;
+
+	@Before
+	public void setUp() {
+		this.mockMvc = MockMvcBuilders.webAppContextSetup(ctx).build();
+	}
+
+	@Test
+	public void noParamGreetingShouldReturnDefaultMessage() throws Exception {
+
+		this.mockMvc.perform(get("/greeting"))
+				.andDo(print())
+				.andExpect(status().isOk())
+				.andExpect(jsonPath("$.content").value("Hello, World!"));
+	}
+
+	@Test
+	public void paramGreetingShouldReturnTailoredMessage() throws Exception {
+
+		this.mockMvc.perform(get("/greeting").param("name", "Spring Community"))
+				.andDo(print())
+				.andExpect(status().isOk())
+				.andExpect(jsonPath("$.content").value("Hello, Spring Community!"));
+	}
+
+}

initial/build.gradle

 
 dependencies {
     compile("org.springframework.boot:spring-boot-starter-web")
-    testCompile("junit:junit")
+    testCompile('org.springframework.boot:spring-boot-starter-test')
 }
 
 task wrapper(type: Wrapper) {

initial/pom.xml

             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.jayway.jsonpath</groupId>
+            <artifactId>json-path</artifactId>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <properties>

test/expected.json

-{"id":1,"content":"Hello, World!"}

test/run.sh

 
 cd ../complete
 mvn clean package
-java -jar target/gs-rest-service-0.1.0.jar &
-PID=$!
-sleep 10
-curl -s http://localhost:8080/greeting > target/actual.json
-kill -9 $PID
-
-echo "Let's look at the actual results: `cat target/actual.json`"
-echo "And compare it to: `cat ../test/expected.json`"
-
-if diff -w ../test/expected.json target/actual.json
-    then
-        echo SUCCESS
-        let ret=0
-    else
-        echo FAIL
-        let ret=255
-        exit $ret
-fi
 
 if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; 
   then