Arquillian Constellation Middleware for Testing
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This document summarizes a presentation about Arquillian Constellation, a middleware for testing not just Java EE applications. It discusses using Arquillian for integration testing, micro-deployments, Docker and container testing, Kubernetes testing, persistence and database testing, contract testing, visual/Selenium testing, and techniques for speeding up test execution like smart testing.
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Arquillian Constellation Middleware for Testing
- 1. Arquillian Constellation Middleware for Testing (not just Java EE) Alex Soto Red Hat Engineer @alexsotob
- 2. @alexsotob2 Alex Soto Red Hat Engineer www.lordofthejars.com @alexsotob Who Am I?
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- 15. @alexsotob15 Create a WAR Classes to Add
- 16. @alexsotob16 Add as Libraries Maven resolver Artifact from pom And its transitivity
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- 19. @alexsotob19 Setting Application Server Special Runner Application Server to Use
- 20. @alexsotob20 Auto-Deployment Take output from package goal
- 22. @alexsotob22 Benefits of Arquillian > Tests are portable > Executable From IDE and Build Tool > Test mode in-container, as-client, mixed > Containers support Tomcat, Jetty, Payara, Wildfly, TomEE, Weblogic, Websphere, OSGi > Test Runners JUnit, TestNG, Cucumber, SerenityBDD, Spock > Modular, Extensible, Flexible Lot of integrations (Selenium, JPA, Docker, ..)
- 24. @alexsotob Testing Containers docker build -t myorg/myservice:1.0.0 . docker run --rm -ti -p 8080:8080 myorg/myservice:1.0.0 docker-compose up mvn clean test docker-compose stop 24 Docker Run Docker Compose Run Run tests Stop Docker Containers
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- 26. @alexsotob Arquillian Cube Example @RunWith(Arquillian.class) public class HelloWorldTest { @ArquillianResource @DockerUrl(containerName = "helloworld", exposedPort = 8080) RequestSpecBuilder requestSpecBuilder; @Test public void should_receive_ok_message() { RestAssured .given() .spec(requestSpecBuilder.build()) .when() .get() .then() .assertThat().body("status", equalTo("OK")); } } 26 Arquillian Runner REST-Assured Integration Environment Resolver Normal REST-Assured Call helloworld: image: jonmorehouse/ping-pong ports: - "8080:8080" src/test/docker/docker-compose.yml
- 27. @alexsotob Arquillian Cube DSL @RunWith(SpringRunner.class) @SpringBootTest(classes = PingPongController.class, webEnvironment = RANDOM_PORT) @ContextConfiguration(initializers = PingPongSpringBootTest.Initializer.class) public class PingPongSpringBootTest { @ClassRule public static ContainerDslRule redis = new ContainerDslRule("redis:3.2.6") .withPortBinding(6379); @Autowired TestRestTemplate restTemplate; @Test public void should_get_data_from_redis() { } 27 Spring Boot Test Custom Initializer Container Definition public static class Initializer implements ApplicationContextInitializer<ConfigurableApplicationContext> { @Override public void initialize(ConfigurableApplicationContext configurableApplicationContext) { EnvironmentTestUtils.addEnvironment("testcontainers", configurableApplicationContext.getEnvironment(), "spring.redis.host=" + redis.getIpAddress(), "spring.redis.port=" + redis.getBindPort(6379) ); Sets Container Environment
- 29. @alexsotob Arquillian Kube @RunWith(Arquillian.class) public class HelloWorldTest { @ArquillianResource KubernetesClient client; @Named(“hello-world-service") @PortForward @ArquillianResource URL url; @Test public void testRunningPodStaysUp() throws Exception { assertThat(client).deployments().pods().isPodReadyForPeriod(); } } 29 Kubernetes Client URL to Access Service AssertJ Custom Assertions
- 33. @alexsotob First attempt @Test public void should_find_composer_by_name() { // Given: clearDatabase(jdbcUri); insertComposersData(jdbcUri); ComposersRepository composersRepository = new ComposersRepository(); // When: Composer mozart = composersRepository.findComposerByName("Wolfgang Amadeus Mozart"); // Then: assertThat(mozart).returns("Wolfgang Amadeus Mozart", Composer::getName); } 33 Prepare Database Execute Query
- 34. @alexsotob34 APE
- 35. @alexsotob APE SQL example @Rule public ArquillianPersistenceRule arquillianPersistenceRule = new ArquillianPersistenceRule(); @DbUnit @ArquillianResource RdbmsPopulator rdbmsPopulator; @Before public void populateData() { // Given: rdbmsPopulator.forUri(jdbcUri).withDriver(Driver.class).withUsername("sa") .withPassword("").usingDataSet("composers.yml") .execute(); } 35 APE JUnit Rule (not necessary with Arquillian Runner) Set DBUnit usage Configure Connection and Dataset Populate composers: - id: 1 name: Wolfgang Amadeus Mozart birthdate: 27/1/1756 died: 5/12/1791
- 36. @alexsotob APE SQL example @After public void clean_database() { // Given: rdbmsPopulator.forUri(jdbcUri).withDriver(Driver.class).withUsername("sa") .withPassword("").usingDataSet("composers.yml") .clean(); } 36 Clean After Test Clean Database
- 38. @alexsotob38 Benefits of Arquillian APE > Boilerplate Code > Programmatic/Declarative @UsingDataSet/@ShouldMatchDataSet > SQL Support DBUnit and Flyway > REST API Support Postman Collections > NoSQL Support MongoDB, Couchbase, CouchDB, Vault, Redis, Infinispan
- 40. @alexsotob40 Consumer request response Stub Server expectations Provider request response Result Define Consumer Expectations Verify Expectations On Provider
- 41. @alexsotob41 @RunWith(Arquillian.class) public class CrimesConsumerContractTest { @StubServer URL pactServer; @Pact(provider = "crimes", consumer = "villains") public RequestResponsePact returnListOfCrimes(PactDslWithProvider builder) { return builder .uponReceiving("Gru villain to get all Crimes") .path("/crimes/Gru") .method("GET") .willRespondWith() .status(200) .body(RESPONSE) .toPact(); } @Test @PactVerification("crimes") public void should_get_list_of_crimes_by_villain() { CrimesGateway crimesGateway = new CrimesGateway(webClient, pactServer); final Single<JsonArray> gruCrimes = crimesGateway.getCrimesByVillainName("Gru"); } Stub/proxy Server URL Defines service interaction Provides predefined Req/Res Executes real requests Consumer side
- 42. @alexsotob42 @RunWith(Arquillian.class) @Provider("crimes") @ContractsFolder("~/crimescontract") public class CrimesContractTest { @ArquillianResource Target target; @Test public void should_validate_contract() { assertThat(target).withUrl(getCrimesServer()).satisfiesContract(); } } Provider under validation Location of contracts Http Client Asserts All Interactions are correct Provider side
- 43. @alexsotob43 Benefits of CDC and Pact > Pact Foundation Pact specification v3 > Integration with several languages JVM, Ruby, Python, Go, .Net, Swift, JS > Pact Broker Sharing contracts, API documentation, Overview of services > Arquillian Algeron Arquillian ecosystem + Pact, Publishers/Retrievers, JBoss Forge > Consumer Driven Contracts Fail fast Independent deployments Improve communication
- 47. @alexsotob Arquillian Drone example @RunWith(Arquillian.class) public class LoginScreenTest { @Drone private WebDriver browser; @Test public void should_login_user() { driver.get("www.mypage.com/login"); driver.findElement(By.id("loginForm:login")).click(); } } 47 Arquillian Runner Injection of WebDriver instance
- 49. @alexsotob Arquillian Graphene Page Object example @Location("login.xhtml") public class HomePage { @Page private UserPage userPage; @FindBy(id = "submit") private WebElement submitButton; @FindBy(id = "form") private LoginPopup loginPopup; // methods } 49 Location of the page Another Page Object Find web element by id Page fragment
- 50. @alexsotob Arquillian Graphene example @RunWith(Arquillian.class) public class LoginTest { @Drone WebDriver webDriver; @Test public void should_create_a_new_speaker(@InitialPage HomePage homePage) { homePage.login("username", "pasword"); } } 50 Open given page Use Page Object method
- 53. @alexsotob53 Benefits of Graphene > Reduces Configuration Code > Page Object pattern With extra features like AJAX-enabled, fragments, JQuery expressions > Docker integration Multiple versions, multiple browsers, recording
- 56. @alexsotob Smart Testing Maven Extension curl -sSL https://git.io/v5jy6 | bash 56 Installs extension mvn clean test -Dsmart.testing="new, changed, affected" Runs only new, changed and prod related tests mvn clean test -Dsmart.testing.mode=ordering -Dsmart.testing="new, changed, affected” Prioritize new, changed and prod related tests
- 58. @alexsotob58 More about Smart Testing > Heuristics new, changed, affected, failed and categorized > Range of Commits Define where you want to look at > Configuration System Properties or YAML file (global or per module) > Jenkins Pipeline Shared Library Integrate with your CI/CD pipeline > Detection of none class changes @WatchFile("src/main/resources/META-INF/ > Surefire based Works with any kind of test that can be run in Surefire
- 64. @alexsotob64 More about Diferencia > Comparison with, without noise detection, strict, subset > Formats supported JSON, Plain Text (automatic detection), HTTPS > Monitoring HTTP Status, Prometheus > Rest API Configure, Stats > Docker Image Ready to use in Kubernetes and OpenShift