Test the SpringBoot application startup

Question

I have a JUnit test that starts an spring-boot application (in my case, the main class is SpringTestDemoApp) after the test:

@WebIntegrationTest @RunWith(SpringJUnit4ClassRunner.class) @SpringApplicationConfiguration(classes = SpringTestDemoApp.class) public class SpringTest { @Test public void test() { // Test http://localhost:8080/ (with Selenium) } }

Everything works fine using spring-boot 1.3.3.RELEASE. Nevertheless, the annotation @WebIntegrationTest and @SpringApplicationConfiguration have been removed in spring-boot 1.5.2.RELEASE. I tried to refactor the code to the new version, but I am not able to do it. With the following test, my app is not started before the test and http://localhost:8080 returns 404:

@RunWith(SpringRunner.class) @SpringBootTest(classes = SpringTestDemoApp.class) @WebAppConfiguration public class SpringTest { @Test public void test() { // The same test than before } }

How can I refactor my test to make it works in spring-boot 1.5?

Are you able to see any exception/message in logs?

Darshan Mehta
– Darshan Mehta

2017-04-07 15:10:09 +00:00
Commented Apr 7, 2017 at 15:10 — Darshan Mehta
– Darshan Mehta, Commented Apr 7, 2017 at 15:10

Martin Schröder · Accepted Answer · 2018-02-09 12:54:52Z

The webEnvironment option inside @SpringBootTest is very important. It can take values like NONE, MOCK, RANDOM_PORT, DEFINED_PORT.

NONE will only create spring beans and not any mock the servlet environment.
MOCK will create spring beans and a mock servlet environment.
RANDOM_PORT will start the actual servlet container on a random port; this can be autowired using the @LocalServerPort.
DEFINED_PORT will take the defined port in the properties and start the server with it.

The default is RANDOM_PORT when you don’t define any webEnvironment. So the app may be starting at a different port for you.

Try to override it to DEFINED_PORT, or try to autowire the port number and try to run test on that port.

Sasha Shpota · Accepted Answer · 2017-04-07 15:56:27Z

It does not work because SpringBootTest uses random port by default, please use:

@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)

Paizo · Accepted Answer · 2017-04-07 15:32:11Z

This is a snippet of what I'm currently using, of course depending on the web-driver you want to use you can create different beans for it. Make sure you have spring boot test and selenium on your pom.xml:

 <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.seleniumhq.selenium</groupId> <artifactId>selenium-java</artifactId> <version>${selenium.version}</version> <scope>test</scope> </dependency>

in my case ${selenium.version} is:

<properties> <selenium.version>2.53.1</selenium.version> </properties>

and those are the classes:

@RunWith(SpringRunner.class) @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT) @Import(IntegrationConfiguration.class) public abstract class AbstractSystemIntegrationTest { @LocalServerPort protected int serverPort; @Autowired protected WebDriver driver; public String getCompleteLocalUrl(String path) { return "http://localhost:" + serverPort + path; } } public class IntegrationConfiguration { @Bean private WebDriver htmlUnitWebDriver(Environment env) { return new HtmlUnitDriver(true); } } public class MyWhateverIT extends AbstractSystemIntegrationTest { @Test public void myTest() { driver.get(getCompleteLocalUrl("/whatever-path/you/can/have")); WebElement title = driver.findElement(By.id("title-id")); Assert.assertThat(title, is(notNullValue())); } }

hope it helps!

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