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Spring Boot Test

Dependency

• build.gradle

dependencies {
	implementation 'org.springframework.boot:spring-boot-starter-web'
	testImplementation('org.springframework.boot:spring-boot-starter-test') {
		exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
	}
}

• pom.xml

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-test</artifactId>
  <scope>test</scope>
  <exclusions>
    <exclusion>
      <groupId>org.junit.vintage</groupId>
      <artifactId>junit-vintage-engine</artifactId>
    </exclusion>
  </exclusions>
</dependency>

Test Code

• @SpringBootTest

Run Test

• ./mvnw test or ./gradlew test

Smoke Test

@SpringBootTest
public class SmokeTest {

	@Autowired
	private HomeController controller;

	@Test
	public void contextLoads() throws Exception {
		assertThat(controller).isNotNull();
	}
}

Http Request Test

@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
public class HttpRequestTest {

	@LocalServerPort
	private int port;

	@Autowired
	private TestRestTemplate restTemplate;

	@Test
	public void greetingShouldReturnDefaultMessage() throws Exception {
		assertThat(this.restTemplate.getForObject("http://localhost:" + port + "/",
				String.class)).contains("Hello, World");
	}
}

Web MVC Test

@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
public class HttpRequestTest {

	@LocalServerPort
	private int port;

	@Autowired
	private TestRestTemplate restTemplate;

	@Test
	public void greetingShouldReturnDefaultMessage() throws Exception {
		assertThat(this.restTemplate.getForObject("http://localhost:" + port + "/",
				String.class)).contains("Hello, World");
	}
}

ref

• https://spring.io/guides/gs/testing-web/

What Else?

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