Testing of Spring presented at Software Passion Summit 2012.

1. Testing of Spring
Mattias Severson

2. Mattias
http://blog.jayway.com/

3. Agenda

4. • Basic Spring Testing
• Embedded Database
• Transactions
• Profiles
• Controller Test

5. Bank App

6. AccountRepository AccountEntity

7. AccountRepository
AccountService
AccountEntity
ImmutableAccount

8. AccountRepository
AccountService
BankController
AccountEntity
ImmutableAccount

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

18. Embedded DB
AccountRepository AccountEntity

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
}

24. Tx Annotations
@TransactionConfiguration
@BeforeTransaction
@AfterTransaction
@Rollback

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")

31. Demo
AccountRepository
AccountService
AccountEntity
ImmutableAccount

32. web.xml
<web-app ...>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
<context-param>
<param-name>spring.profiles.active</param-name>
<param-value>someProfile</param-value>
</context-param>

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");

36. Test Controller
AccountRepository
AccountService
BankController
AccountEntity
ImmutableAccount

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();

42. Test
mockMvc.perform(get("/")
.accept(MediaType.APPLICATION_JSON))
.andExpect(response().status().isOk())
.andExpect(response().contentType(MediaType))
.andExpect(response().content().xpath(String).exists())
.andExpect(response().redirectedUrl(String))
.andExpect(model().hasAttributes(String...));

43. Demo

44. Integration tests

45. jetty-maven-plugin
<executions>
<execution>
<id>start-jetty</id>
<phase>pre-integration-test</phase>
<goals>
<goal>run</goal>
</goals>
</execution>
<execution>
<id>stop-jetty</id>
<phase>post-integration-test</phase>
<goals>
<goal>stop</goal>
</goals>
</execution>
</executions>

46. maven-failsafe-plugin
IT*.java
*IT.java
*ITCase.java

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?

51. http://blog.jayway.com/