@SpringBootTest for a non-spring-boot application

Question

I am creating a non-spring-boot application using spring-rest, spring-data-jpa etc and I would like to do integration testing using spring boot (1.4.1.RELEASE). Note that I don't have a SpringApplication class or @SpringApplication annotation anywhere

On my test class I have

@RunWith(SpringRunner.class) @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, classes = MyConfiguration.class) public class MyIT { } @RestController public class MyController { }

This is starting an embedded tomcat and I can see that my controller is being initialized, however, I get a 404 when calling my service using TestRestTemplate. It appears that DispatcherServlet does not seem to know about my controllers

Also, I had to define a servletContainer bean as follows

@Bean public EmbeddedServletContainerFactory servletContainer() { TomcatEmbeddedServletContainerFactory factory = new TomcatEmbeddedServletContainerFactory(); factory.setPort(9000); factory.setSessionTimeout(10, TimeUnit.MINUTES); return factory; }

Am I missing any configuration for Spring to have my controllers visible to embedded tomcat? I tried using @EnableAutoConfiguration @ComponentScan on the test class but they don't have any effect. I have wasted two days on this and any hints are greatly appreciated!!

Complete MyIT class

@RunWith(SpringRunner.class) @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, classes = { TestContextConfiguration.class }) public class MyIT { @Value("${local.server.port}") private int serverPort; @Resource private TestRestTemplate restTemplate; @Test public void test() throws Exception { System.out.println("Port:" + serverPort); System.out.println("Hello:" + this.restTemplate.getForEntity("/", String.class)); }

}

Controller class

@RestController public class MyController { @GetMapping("/") public String hello() { System.out.println("Hello called"); return "Hello"; } }

Output of the test

Port:9000 Hello:<404 Not Found,<!DOCTYPE html><html><head><title>Apache Tomcat/8.5.5 - Error report</title><style type="text/css">H1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} H2 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} H3 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} BODY {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} B {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} P {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A {color : black;}A.name {color : black;}.line {height: 1px; background-color: #525D76; border: none;}</style> </head><body><h1>HTTP Status 404 - /</h1><div class="line"></div><p><b>type</b> Status report</p><p><b>message</b> <u>/</u></p><p><b>description</b> <u>The requested resource is not available.</u></p><hr class="line"><h3>Apache Tomcat/8.5.5</h3></body></html>,{Content-Type=[text/html;charset=utf-8], Content-Language=[en], Content-Length=[992], Date=[Wed, 05 Oct 2016 14:26:46 GMT]}>

You are requesting "/" with restTemplate, do you handle @RequestMapping(value = "/", method = RequestMethod.GET) in your rest controller MyController — Issam El-atif
– Issam El-atif, Commented Oct 5, 2016 at 13:51
I have a separate JUnit for just the controller using MockMvc and that works fine — samragu
– samragu, Commented Oct 5, 2016 at 14:28

mpianello · Accepted Answer · 2018-06-04 17:40:10Z

This can be achieved by creating a TestConfig inner class and annotate it with @SpringBootConfiguration like:

@SpringBootConfiguration public static class TestConfig { }

Then, in your test class:

@RunWith(SpringRunner.class) @SpringBootTest(...) @Import(MyIT.TestConfig.class) public class MyIT { @SpringBootConfiguration @ComponentScan("com.example") public static class TestConfig { } }

Note that TestConfig class also has @ComponentScan annotation. This is used by Spring to find your applicacion beans.

Although this solution works in way to hacky and hard to maintain.

Zeta · Accepted Answer · 2022-10-24 09:20:44Z

Have a test configuration that define beans that you want to use, annotate with @TestConfiguration

@TestConfiguration public class TestConfig { @Bean public Faker getFaker() { return new Faker(); } }

Then your test class would like this

@SpringBootTest(classes = {MyService.class,TestConfig.class}) @RunWith(SpringRunner.class) public class MyIT { @Autowired MyService myService; @Autowired Faker faker; }

Collectives™ on Stack Overflow

@SpringBootTest for a non-spring-boot application

2 Answers 2

2 Comments

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

Comments

Linked

Related