Download - Spring Testing
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Spring TestingMattias Severson
Agenda
• Basic Spring Testing
• Embedded Database
• Transactions
• Profiles
• Controller Tests
• Server Integration Tests
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3
Mattias
Bank App
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AccountService
BankController
ImmutableAccount
AccountEntityAccountRepository
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Architecture
Basics
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jUnit Test
public class AccountServiceTest {
AccountService aService;
@Before public void setUp() { aService = new AccountServiceImpl(); }
@Test public void testDoSomething() { aService.doSomething(); // verify ... }}
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public class AccountServiceTest {
@Autowired AccountService aService;
@Test public void testDoSomething() { aService.doSomething(); // verify ... }}
@Autowired
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@ContextConfiguration("/application-context.xml")public class AccountServiceTest {
@Autowired AccountService aService;
@Test public void testDoSomething() { aService.doSomething(); // verify ... }}
public class AccountServiceTest {
@Autowired AccountService aService;
@Test public void testDoSomething() { aService.doSomething(); // verify ... }}
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@ContextConfiguration
@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration("/application-context.xml")public class AccountServiceTest {
@Autowired AccountService aService;
@Test public void testDoSomething() { aService.doSomething(); // verify ... }}
@ContextConfiguration("/application-context.xml")public class AccountServiceTest {
@Autowired AccountService aService;
@Test public void testDoSomething() { aService.doSomething(); // verify ... }}
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SpringJUnit4ClassRunner
• Caches ApplicationContext –static memory–unique context configuration–within the same test suite
• All tests execute in the same JVM
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@ContextConfiguration
• @Before / @After–Mockito.reset(mockObject)–EasyMock.reset(mockObject)
• @DirtiesContext
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Mocked Beans
Embedded DB
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AccountRepository AccountEntity
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>
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Java Config
@Configurationpublic class EmbeddedDbConfig {
@Bean public DataSource dataSource() { return new EmbeddedDatabaseBuilder() .setType(EmbeddedDatabaseType.HSQL) .addScript(“classpath:db-schema.sql”) .addScript(“classpath:db-test-data.sql”) .build(); }}
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Demo
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Transactions
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Tx Test
@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration("/application-context.xml")public class AccountServiceTest {
@Test public void testDoSomething() { // call DB }
}
@Transactional
@Test public void testDoSomething() { // call DB }
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Tx Annotations
• @TransactionConfiguration
• @BeforeTransaction
• @AfterTransaction
• @Rollback
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Avoid False Positives
• Always flush() before validation!
–JPA • entityManager.flush();
–Hibernate• sessionFactory.getCurrentSession().flush();
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Demo
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No Transactions?
@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration("...")public class AccountRepositoryTest {
@Autowired AccountRepository accountRepo;
@Before public void setUp() { accountRepo.deleteAll(); accountRepo.save(testData); }}
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Spring Profiles
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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>
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Java Config Profile
@Configurationpublic class EmbeddedDbConfig {
@Bean public DataSource dataSource() { return new EmbeddedDatabaseBuilder(). // ... }}
@Profile(“testProfile”)
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Component Profile
@Componentpublic class SomeClass implements SomeInterface {
}
@Profile(“testProfile”)
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Tests and Profiles
@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration(“/application-context.xml”)public class SomeTest {
@Autowired SomeClass someClass;
@Test public void testSomething() { ... }}
@ActiveProfiles("testProfile")
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Demo
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AccountRepository AccountEntity
AccountService ImmutableAccount
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>
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ApplicationContext
AnnotationConfigApplicationContext ctx = new AnnotationConfigApplicationContext();ctx.getEnvironment().setActiveProfiles("someProfile");ctx.register(SomeConfig.class);ctx.scan("com.jayway.demo");ctx.refresh();
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Env Property
System.getProperty(“spring.profiles.active”);
mvn -Dspring.profiles.active=testProfile
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Default Profiles
ctx.getEnvironment().setDefaultProfiles("...");
System.getProperty("spring.profiles.default");
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<context-param> <param-name>spring.profiles.default</param-name> <param-value>defaultProfile</param-value></context-param>
<beans profile="default"> <!-- default beans --></beans>
@Profile("default")
Profile Alternatives
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• .properties
• Maven Profile
Test Controller AccountRepository
AccountService
AccountEntity
ImmutableAccount
BankController
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Spring MVC Test Framework
• Call Controllers through DispatcherServlet
• MockHttpServletRequest• MockHttpServletResponse
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MockMvc
MockMvc mockMvc = MockMvcBuilders .standaloneSetup(new BankController()) .build();
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MockMvc mockMvc = MockMvcBuilders .standaloneSetup(new BankController()) .setMessageConverters(...) .setValidator(...) .setConversionService(...) .addInterceptors(...) .setViewResolvers(...) .setLocaleResolver(...) .addFilter(...) .build();
Assertions
mockMvc.perform(get("/url") .accept(MediaType.APPLICATION_XML)) .andExpect(response().status().isOk()) .andExpect(content().contentType(“MediaType.APPLICATION_XML”)) .andExpect(xpath(“key”).string(“value”)) .andExpect(redirectedUrl(“url”)) .andExpect(model().attribute(“name”, value));
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@WebAppConfiguration
@RunWith(SpringJUnit4ClassRunner.class)@ContextConfiguration("/application-context.xml")@WebAppConfigurationpublic class WebApplicationTest {
@Autowired WebApplicationContext wac;
MockMvc mockMvc;
@Before public void setup() { mockMvc = MockMvcBuilders .webAppContextSetup(wac) .build(); }
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Demo
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Testing Views
• Supported templates–JSON–XML–Velocity–Thymeleaf
• Except JSP
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Server Integration Tests
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appCtx
Spring Integration Test
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Embedded DB
txMngr
test
dataSrc
App Server
appCtx
Server Integration Test
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Embedded DB
txMngr
test
dataSrc
HTTP
App Server
App Server
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appCtx
DB
txMngrdataSrc
testAppCtx
dataSrc
testHTTP
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>
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maven-failsafe-plugin
**/IT*.java**/*IT.java**/*ITCase.java
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Test RESTful API
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• RestTemplate• Selenium• HttpClient• ...
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"); }
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Demo
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Questions?
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Learn More. Stay Connected.
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@mattiasseverson
http://blog.jayway.com/author/mattiasseverson/
