spring-spock-integration-testing blog post samples

IntegrationTestMockingConfig.groovy

@TestConfiguration
class IntegrationTestMockingConfig {
    private DetachedMockFactory factory = new DetachedMockFactory()
 
    @Bean
    ExternalRankingService externalRankingService() {
        factory.Mock(ExternalRankingService)
    }
}

PersonControllerIntTest.groovy

@SpringBootTest
@AutoConfigureMockMvc
@Import([IntegrationTestMockingConfig])
class PersonControllerIntTest extends Specification {
 
    @Autowired MockMvc mvc
 
    /**
     * This is our mock we created in our test config. 
     * We inject it in so we can control it in our specs.
     */
    @Autowired ExternalRankingService externalRankingServiceMock
 
    def "GetRank"() {
        when: 'Calling getRank for a known seed data entity'
        MvcResult mvcResult = mvc.perform(get("/persons/1/rank"))
                                 .andExpect(status().is2xxSuccessful())
                                 .andReturn()
 
        then: 'we define the mock for JUST the external service'
        externalRankingServiceMock.getRank(_) >> {
            new Rank(level: 1, classification: 'Captain')
        }
        noExceptionThrown()
 
        when: 'inspecting the contents'
        def content = mvcResult.response.contentAsString
 
        then: 'result contains mix of mocked service data and actual wired component data'
        content == 'Capt James Kirk ~ Captain:Level 1'
    }
}

SampleTestApplicationWebIntegrationTests.java

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = WebEnvironment.RANDOM_PORT)
public class SampleTestApplicationWebIntegrationTests {
 
    @Autowired private TestRestTemplate restTemplate;
 
    //You'll now be able to mock calls to VehicleDetailsService
    @MockBean private VehicleDetailsService vehicleDetailsService; 
}