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microservices – Wiktor Tech Notes Skip to content Wiktor Tech Notes Software Development Notes, Articles, Blog posts, Links And Comments Menu Front Page AboutTragedianBlog Contact Tag: microservices Posted on 2017-03-212017-03-21Mock REST services using Restito Examples Integration testing I have been developing rest microservices for years now, and I unchangingly had weightier results by focusing on the integration testing of the services, instead of tent scrutinizingly 100% of lawmaking by unit tests. I usually use one of two tools : Wiremock and Restito. The nomination between them is not obvious. It’s rather a team visualization or preference. Usually the tool that have been used increasingly recently wins, without massive superiority over the other option. Restito It is a framework that can be used for stubbing http responses, simulating other microservice responses. The power of such stubs is that you can test your using versus several malfunction of services that your using depends on. Example 1. The base, extendable integration test specification The lawmaking unelevated shows the usage of restito StubServer for stubbing a remote service. Toolset : Spock and Groovy. matriculation IntegrationSpecification extends Specification { private static final Integer port = 9090; protected StubServer server; @Shared ConfigurableApplicationContext context @Before public void start() { server = new StubServer(port).run(); } @After public void stop() { server.stop(); } void setupSpec() { Future future = Executors .newSingleThreadExecutor().submit( new Callable() { @Override public ConfigurableApplicationContext call() throws Exception { return (ConfigurableApplicationContext) SpringApplication .run(YourMainApplication.class) } }) context = future.get(60, TimeUnit.SECONDS) } void cleanupSpec() { if (context != null) { context.close() } } } In the lawmaking above, there is a setupSpec() method. It is not obligatory for you to have it like this. It is an example of how your Spring using can be started by Spock tests. Example 2. The test implementation. @IntegrationTest @SpringApplicationConfiguration(CogniTwitterApplication.class) @ActiveProfiles("test") matriculation SearchEndpointTest extends IntegrationSpecification { private om = new ObjectMapper() def "get search params should return filled values when set"() { given: def restTemplate = new RestTemplate(); def oauthResponse = new AccessGrant("exampleAccessToken"); def searchResponse = [new TweetDto(1,"test",new UserDto("testuser",null),null,"2014-01-01 00:00:00")] as List //first Restito Stub whenHttp(server). match(get("/oauth2/token")). then( status(HttpStatus.OK_200), stringContent(om.writeValueAsString(oauthResponse)) ); //second Restito Stub whenHttp(server). match(get("/1.1/search/tweets.json?q=*")). then( status(HttpStatus.OK_200), stringContent(om.writeValueAsString(searchResponse)) ); HttpHeaders headers = prepareSelectedSearchParamsSession(restTemplate) when: def response2 = restTemplate.exchange( "http://localhost:8080/search", HttpMethod.GET, prepareEntityWithHeaders(headers), TweetDto[].class); then: response2.statusCode.value() == HttpStatus.OK_200.statusCode } private HttpHeaders prepareSelectedSearchParamsSession(RestTemplate restTemplate) { def headers = prepareHeaders() def entity = new HttpEntity("{\"keywords\":\"spring\",\"channel\":null}", headers) def response = restTemplate.exchange("http://localhost:8080/searchParams", HttpMethod.POST, entity, Void.class); def session = response.getHeaders().get("Set-Cookie").get(0).split(";")[0]; headers.add(COOKIE, session); headers } private HttpEntity prepareEntityWithHeaders(headers) { def entity = new HttpEntity(null, headers) entity } private HttpHeaders prepareHeaders() { def preparedHeaders = new HttpHeaders(); preparedHeaders.add(CONTENT_TYPE, APPLICATION_JSON_VALUE); preparedHeaders } } Social & Sharing Share List Search this page Search for: Search Recent posts Groovy for crawlling website meta tags 2017-07-05 REST services stubbing example using springboot and wiremock 2017-03-22 Mock REST services using Restito Examples 2017-03-21 Separating unit and integration tests using Gradle 2017-03-21 Running Spring marching using as a service (linux) 2017-03-02 Tagscomposer example good practices gradle groovy html immutables integration java meta microservices mock packagist php rest snippet soa spring test tutorial wiremock TagsComposer Cucumber Immutables Java Microsoft Visual Studio PHP REST Sample Snippet spring Uncategorized Windows Sources and ownership Contents of this page are mostly found over the web, but I unchangingly put original author. If you are tragedian and you've found your post, tutorial, or whatever that belongs to you and I did not mention it, please write me! Search on this page Search for: Search Facebook Tumblr E-mail Proudly powered by WordPress