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Testing Spring Boot Applications
This document summarizes different types of tests for Spring Boot applications, including unit tests, integration tests, and sliced tests. It discusses tools for mocking dependencies like MockRestServiceServer, Testcontainers for integration with Docker, and annotations like @MockBean and @SpyBean. Context caching, properties, and dirty context handling are also covered. The document concludes with an upcoming talk on JUnit 5.
In this document
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Introduction to testing in Spring Boot, highlighting the importance and risks related to tests.
Focus on unit tests, utilizing various testing tools like MockRestServiceServer and JdbcTemplate.
Introduction to Testcontainers for integration testing in Spring Boot applications.
Explains the setup and configuration for integration tests using annotations like @SpringBootTest.
Overview of managing test contexts and sliced tests for better isolation in Spring Boot.
Details the use of mocks and beans in testing controllers with JUnit and Spring Boot.
Closure of the presentation with a session for questions and answers.
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Testing Spring Boot Applications
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- 8. @ankinson MockRestServiceServer OkHTTP’s MockWebServer Spring DataRepositories JdbcTemplate
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- 11. @ankinson @SpringBootTest @Testcontainers(disabledWithoutDocker = true) @ContextConfiguration(initializers= ExampleIntegrationTests.Initializer.class) class ExampleIntegrationTests { @Container public static CassandraContainer<?> cassandra = new CassandraContainer<>(); static class Initializer implements ApplicationContextInitializer<ConfigurableApplicationContext> { @Override public void initialize(ConfigurableApplicationContext context) { int cqlPort = cassandra.getMappedPort(CassandraContainer.CQL_PORT); TestPropertyValues.of("spring.data.cassandra.port=" + cqlPort) .applyTo(context.getEnvironment()); } } }
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- 15. @ankinson @SpringBootTest(properties="spring.jmx.enabled=true") @ActiveProfiles("standalone") @TestPropertySource(locations="standalone.properties") class ExampleIntegrationTests { @Test voidcontextLoads() { } } @ContextConfiguration @Import @TestPropertySource @ActiveProfiles @SpringBootTest
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- 21. @ankinson @WebMvcTest class CustomerControllerIntegrationTests { @Autowired privateMockMvc mockMvc; @Configuration static class RepositoryConfiguration { @Bean CustomerRepository customers() { return mock(CustomerRepository.class); } @Bean OrderRepository orders() { return mock(OrderRepository.class); } } }
- 22. @ankinson Customer Customer Order @WebMvcTest class CustomerControllerTests { @Autowired privateMockMvc mockMvc; @MockBean private CustomerRepository customers; @MockBean private OrderRepository orders; } 😱 (controllers = CustomerController.class)
- 23. JUnit 5: Evolutionand Innovation Sam Brannen Thursday 10:30am–11:40am Ballroom F
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