Lightning Talk by Ted Young

What is Integration Testing?

Unit TestIntegration Test IsolationEntire Stack Unit Versus Integration Tests

Unit TestIntegration Test IsolationEntire Stack Inject MocksInject Implementations Unit Versus Integration Tests

Unit TestIntegration Test IsolationEntire Stack Inject MocksInject Implementations Verifies CodeVerifies Application Unit Versus Integration Tests

public void persist(Foo foo) { entityManager.persist(foo); } public List find() { return entityManager.createQuery("from Foo").getResultList(); } public List findByName(String name) { CriteriaBuilder cb = entityManager.getCriteriaBuilder(); CriteriaQuery query = cb.createQuery(Foo.class); Root root = query.from(Foo.class); query.where(cb.equal(root.get(Foo_.name), name)); return entityManager.createQuery(query).getResultList(); } Unit Tests Arent Always Best

External Tool (e.g. JMeter)Test Harness (e.g. JUnit) External ToolIDE, Maven, CI, etc. Integration Testing Controllers

External Tool (e.g. JMeter)Test Harness (e.g. JUnit) External ToolIDE, Maven, CI, etc. Script ActionsBuild Requests in Java Integration Testing Controllers

External Tool (e.g. JMeter)Test Harness (e.g. JUnit) External ToolIDE, Maven, CI, etc. Script ActionsBuild Requests in Java No Knowledge of ApplicationIntimate Knowledge of Application: Security System Data Model Make Use of Spring Integration Testing Controllers

External Tool (e.g. JMeter)Test Harness (e.g. JUnit) External ToolIDE, Maven, CI, etc. Script ActionsBuild Requests in Java No Knowledge of ApplicationIntimate Knowledge of Application: Security System Data Model Make Use of Spring Refactor = RewriteMake Use of IDE Tools Integration Testing Controllers

External Tool (e.g. JMeter)Test Harness (e.g. JUnit) External ToolIDE, Maven, CI, etc. Script ActionsBuild Requests in Java No Knowledge of ApplicationIntimate Knowledge of Application: Security System Data Model Make Use of Spring Refactor = RewriteMake Use of IDE Tools Errors at RuntimeErrors at Compiletime Integration Testing Controllers

Testing a Controller Servlet Container Controller

Testing a Spring MVC Controller Servlet Container Controller Spring MVC

Testing a Spring MVC Controller Servlet Container Controller Spring MVC View Resolution Transactions Request Mapping

Testing a Spring MVC Controller Servlet Container Controller Spring MVC View Resolution Transactions Request Mapping DispatcherServlet

Mocking DispatcherServlet DispatcherServlet

Mocking DispatcherServlet DispatcherServlet WebApplicationContext

Mocking DispatcherServlet DispatcherServlet WebApplicationContext ServletConfigServletContext

public class SomeControllerTests {... } Spring and JUnit

locations="classpath:spring.xml", loader=MockWebApplicationContextLoader.class) public class SomeControllerTests {... } Spring and JUnit

locations="classpath:spring.xml", name="some-controller", webapp="/src/main/webapp") public class SomeControllerTests {... } Spring and JUnit

How Many Use: JSPs Velocity Freemarker Facelets View Technologies

@Autowired private DispatcherServlet private SomeRepository public void viewTest() throws Exception { MockHttpServletRequest request = new MockHttpServletRequest("GET", "/view"); request.addParameter("id", "0"); MockHttpServletResponse response = new MockHttpServletResponse(); servlet.service(request, response); String results = response.getContentAsString().trim(); Assert.assertEquals( " Hello World! ", results); } An Example Test

@Test public void saveTest() throws Exception { MockHttpServletRequest request = new MockHttpServletRequest("POST", "/"); request.addParameter("name", "Ted"); MockHttpServletResponse response = new MockHttpServletResponse(); servlet.service(request, response); Assert.assertEquals("Ted", repository.find(1).getName()); } Prepare and Review Model

@Test(expected=NestedServletException.class) public void saveFailedTest() throws Exception { MockHttpServletRequest request = new MockHttpServletRequest("POST", "/"); request.addParameter("name", ""); MockHttpServletResponse response = new MockHttpServletResponse(); servlet.service(request, response); } Test Validation

@Test(expected=NestedServletException.class) public void secureFailedTest() throws Exception { MockHttpServletRequest request = new MockHttpServletRequest("GET", "/secure/view"); MockHttpServletResponse response = new MockHttpServletResponse(); servlet.service(request, response); } Test Security

@Test public void secureTest() throws Exception { SecurityContextHolder.getContext().setAuthentication( new UsernamePasswordAuthenticationToken( "Ted", "password")); MockHttpServletRequest request = new MockHttpServletRequest("GET", "/secure/view"); MockHttpServletResponse response = new MockHttpServletResponse(); servlet.service(request, response); String results = response.getContentAsString().trim(); Assert.assertEquals( " Hello Ted! ", results); } Test Security