I want to create a Spring Boot test for a Controller-class.
The method I want to test is:
private String statusQueryToken; @RequestMapping("/onCompletion") public String whenSigningComplete(@RequestParam("status_query_token") String token){ this.statusQueryToken = token; I am unsure about how to test things in Spring Boot.
If I wanted to test that the field statusQueryToken has been initialized with the @RequestParam("status_query_token"), how would I go about doing this?
Thank you!
You can use Spring MockMvc
So try something like this:
MockMvc mockMvc = MockMvcBuilders.standaloneSetup(controller).build(); mockMvc.perform(get("/onCompletion").param("status_query_token", "yourToken")) .andExpect(status().isOk()); There are several way you can approach this. My preferred way to test with the real tomcat instance.
@RunWith(SpringJUnit4ClassRunner.class) @WebIntegrationTest("server.port:0") @SpringApplicationConfiguration(YourMainApplication.class) public class TestClass() { @Value("${local.server.port}") private int port; @Autowired private RestTemplate restTemplate; public <T> T get(String path, Class<T> responseType, Object... pathVariables) { return restTemplate.getForEntity(path, responseType, pathVariables).getBody(); } } 
There are different ways to test
1. Using Maven
$ mvn clean install This will generate the jar file with spring boot embedded with tomcat by default
$ mvn spring-boot:run This will run you spring app
Now Spring is up and running
2. Creating an executable jar (in absence on maven)
$ java -jar target/myproject.0.0.1.SNAPSHOT.jar "Same effect as above"
Now open the browser or soap ui or fiddler or postmaster to send request to the controller
ex: GET method http://localhost:8080/myproject/onCompletion/hello
http://docs.spring.io/spring-boot/docs/current/reference/html/getting-started-first-application.html
@RunWith(MockitoJUnitRunner.class) @SpringBootTest(classes = ApplicationConfiguration.class) public class ItemFeedTest { @InjectMocks private PersonRepository personRepository; @Autowired @Mock private PersonService personService; @Before public void setup() throws IOException { MockitoAnnotations.initMocks(this); } @Test public void onSuccessTest() { //Write the Junit Test and mock the required Class } }