Add JUnit Jupiter sample application

See gh-8048

spring-boot-samples/README.adoc

@@ -132,6 +132,9 @@ The following sample applications are provided:
 | link:spring-boot-sample-jta-narayana[spring-boot-sample-jta-narayana]
 | JTA transactions with Narayana
 
+| link:spring-boot-sample-junit-jupiter[spring-boot-sample-junit-jupiter]
+| Demonstrates JUnit Jupiter-based testing
+
 | link:spring-boot-sample-liquibase[spring-boot-sample-liquibase]
 | Database migrations with Liquibase
 

spring-boot-samples/pom.xml

@@ -63,6 +63,7 @@
 		<module>spring-boot-sample-jta-bitronix</module>
 		<module>spring-boot-sample-jta-narayana</module>
 		<module>spring-boot-sample-jta-jndi</module>
+		<module>spring-boot-sample-junit-jupiter</module>
 		<module>spring-boot-sample-liquibase</module>
 		<module>spring-boot-sample-logback</module>
 		<module>spring-boot-sample-metrics-dropwizard</module>

spring-boot-samples/spring-boot-sample-junit-jupiter/pom.xml

@@ -0,0 +1,75 @@
+<?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">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<!-- Your own application should inherit from spring-boot-starter-parent -->
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-samples</artifactId>
+		<version>2.0.0.BUILD-SNAPSHOT</version>
+	</parent>
+	<artifactId>spring-boot-sample-junit-jupiter</artifactId>
+	<name>Spring Boot JUnit Jupiter Sample</name>
+	<description>Spring Boot JUnit Jupiter Sample</description>
+	<url>http://projects.spring.io/spring-boot/</url>
+	<organization>
+		<name>Pivotal Software, Inc.</name>
+		<url>http://www.spring.io</url>
+	</organization>
+	<properties>
+		<main.basedir>${basedir}/../..</main.basedir>
+		<junit.jupiter.version>5.0.0-M5</junit.jupiter.version>
+		<junit.platform.version>1.0.0-M5</junit.platform.version>
+	</properties>
+
+	<dependencies>
+		<!-- Compile -->
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+		<!-- Test -->
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+			<exclusions>
+				<exclusion>
+					<groupId>junit</groupId>
+					<artifactId>junit</artifactId>
+				</exclusion>
+			</exclusions>
+		</dependency>
+		<dependency>
+			<groupId>org.junit.jupiter</groupId>
+			<artifactId>junit-jupiter-api</artifactId>
+			<version>${junit.jupiter.version}</version>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<dependencies>
+					<dependency>
+						<groupId>org.junit.platform</groupId>
+						<artifactId>junit-platform-surefire-provider</artifactId>
+						<version>${junit.platform.version}</version>
+					</dependency>
+					<dependency>
+						<groupId>org.junit.jupiter</groupId>
+						<artifactId>junit-jupiter-engine</artifactId>
+						<version>${junit.jupiter.version}</version>
+					</dependency>
+				</dependencies>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

spring-boot-samples/spring-boot-sample-junit-jupiter/src/main/java/sample/MessageController.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2012-2017 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 sample;
+
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @author Eddú Meléndez
+ */
+@RestController
+public class MessageController {
+
+	@GetMapping("/hi")
+	public String hello() {
+		return "Hello World";
+	}
+
+}

spring-boot-samples/spring-boot-sample-junit-jupiter/src/main/java/sample/SampleJunitJupiterApplication.java

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2012-2017 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 sample;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SampleJunitJupiterApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SampleJunitJupiterApplication.class, args);
+	}
+}

spring-boot-samples/spring-boot-sample-junit-jupiter/src/test/java/sample/SampleJunitJupiterApplicationTests.java

@@ -0,0 +1,43 @@
+/*
+ * Copyright 2012-2017 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 sample;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@ExtendWith(SpringExtension.class)
+@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
+class SampleJunitJupiterApplicationTests {
+
+	@Autowired
+	private TestRestTemplate restTemplate;
+
+	@Test
+	void testMessage() {
+		String message = this.restTemplate.getForObject("/hi", String.class);
+		assertThat(message).isEqualTo("Hello World");
+	}
+
+}