Software Passion Summit 2012 - Testing of Spring
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This document discusses different techniques for testing Spring applications, including: 1. Basic Spring testing using the SpringJUnit4ClassRunner and @Autowired to inject dependencies. 2. Using an embedded database like HSQLDB to test database interactions without needing a real database. 3. Adding transaction management to tests using the @Transactional annotation. 4. Leveraging Spring profiles to configure tests differently than production code. 5. Testing Spring MVC controllers using the spring-test-mvc module to mock requests and assertions.
Software Passion Summit 2012 - Testing of Spring
- 1. Testing of Spring Mattias Severson
- 3. Agenda
- 4. • Basic Spring Testing • Embedded Database • Transactions • Profiles • Controller Test
- 5. Bank App
- 9. Basics
- 10. jUnit test public class ExampleTest { Example example; @Before public void setUp() { example = new ExampleImpl(); } @Test public void testDoSomething() { example.doSomething(); // verify ... } }
- 11. @Autowired public class ExampleTest { @Autowired Example example; @Test public void testDoSomething() { example.doSomething(); // verify ... } }
- 12. @ContextConfiguration @ContextConfiguration("/application-context.xml") public class ExampleTest { @Autowired Example example; @Test public void testDoSomething() { example.doSomething(); // verify ... } } public class ExampleTest { @Autowired Example example; @Test public void testDoSomething() { example.doSomething(); // verify ... } }
- 13. @ContextConfiguration @ContextConfiguration("classes=TestConfig.class") public class ExampleTest { @Autowired Example example; @Test public void testDoSomething() { example.doSomething(); // verify ... } }
- 14. @ContextConfiguration @ContextConfiguration("/application-context.xml") public class ExampleTest { @Autowired Example example; @Test public void testDoSomething() { example.doSomething(); // verify ... } }
- 15. SpringJUnit4ClassRunner @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration("/application-context.xml") public class ExampleTest { @Autowired Example example; @Test public void testDoSomething() { example.doSomething(); // verify ... } } @ContextConfiguration("/application-context.xml") public class ExampleTest { @Autowired Example example; @Test public void testDoSomething() { example.doSomething(); // verify ... } }
- 16. @ContextConfiguration • Caches ApplicationContext • unique context configuration • within the same test suite • All tests execute in the same JVM
- 17. @ContextConfiguration • @Before / @After • Mockito.reset(mockObject) • EasyMock.reset(mockObject) • @DirtiesContext
- 19. XML Config <jdbc:embedded-database id="dataSource" type="HSQL"> <jdbc:script location="classpath:db-schema.sql"/> <jdbc:script location="classpath:db-test-data.sql"/> </jdbc:embedded-database>
- 20. Demo
- 21. Java Config @Configuration public class EmbeddedDbConfig { @Bean public DataSource dataSource() { return new EmbeddedDatabaseBuilder() .setType(EmbeddedDatabaseType.HSQL) .addScript(“classpath:db-schema.sql”) .addScript(“classpath:db-test-data.sql”) .build(); } }
- 22. Transactions
- 23. Tx Test @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration("/application-context.xml") public class ExampleTest { @Test public void testDoSomething() { // call DB } } @Transactional @Test public void testDoSomething() { // call DB }
- 25. Demo
- 26. Spring Profiles
- 27. XML Profiles <beans ...> <bean id="dataSource"> <!-- Test data source --> </bean> <bean id="dataSource"> <!-- Production data source --> </bean> </beans> <beans profile="testProfile"> </beans> <beans profile="prodProfile"> </beans>
- 28. Java Config Profile @Configuration public class EmbeddedDbConfig { @Bean public DataSource dataSource() { return new EmbeddedDatabaseBuilder(). // ... } } @Profile(“testProfile”)
- 29. Component Profile @Component public class SomeClass implements SomeInterface { } @Profile(“testProfile”)
- 30. Tests and Profiles @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(“/application-context.xml”) public class SomeTest { @Autowired SomeClass someClass; @Test public void testSomething() { ... } } @ActiveProfiles("testProfile")
- 33. ApplicationContext AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext(); ctx.getEnvironment().setActiveProfiles("someProfile"); ctx.register(SomeConfig.class); ctx.scan("com.jayway.demo"); ctx.refresh();
- 34. Env Property System.getProperty(“spring.profiles.active”); mvn -Dspring.profiles.active=testProfile
- 35. Default profiles ctx.getEnvironment().setDefaultProfiles("..."); <beans profile="default"> <!-- Default beans --> </beans> System.getProperty("spring.profiles.default");
- 37. Demo
- 38. spring-test-mvc
- 39. XML config MockMvc mockMvc = MockMvcBuilders .xmlConfigSetup("classpath:appContext.xml") .activateProfiles(...) .configureWebAppRootDir(warDir, false) .build();
- 40. Java config MockMvc mockMvc = MockMvcBuilders .annotationConfigSetup(WebConfig.class) .activateProfiles(...) .configureWebAppRootDir(warDir, false) .build();
- 41. Manual config MockMvc mockMvc = MockMvcBuilders .standaloneSetup(new BankController()) .setMessageConverters(...) .setValidator(...) .setConversionService(...) .addInterceptors(...) .setViewResolver(...) .setLocaleResolver(...) .build();
- 43. Demo
- 47. REST Assured @Test public void shouldGetSingleAccount() { expect(). statusCode(HttpStatus.SC_OK). contentType(ContentType.JSON). body("accountNumber", is(1)). body("balance", is(100)). when(). get("/account/1"); }
- 48. Conclusions
- 49. • Basic Spring Testing • Embedded database • Transactions • Profiles • Controller Test
- 50. Questions?