integration-testing
Implement Spring Framework integration tests with TestContainers, Spring Test, and database fixtures
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- 2026년 3월 21일 19:44
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SKILL.md
소스 지침 · 읽기 전용 미리보기- name
- integration-testing
- description
- Implement Spring Framework integration tests with TestContainers, Spring Test, and database fixtures
- license
- Apache-2.0
# Integration Testing Skill
## Purpose
Test component interactions, database operations, and external API integrations using Spring testing framework with TestContainers.
## When to Use
- ✅ Testing repository layer with real database
- ✅ Testing REST API endpoints (if applicable)
- ✅ Testing Spring Security configuration
- ✅ Testing external API integrations
## Spring Integration Test Patterns
```java
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = ApplicationContext.class)
@Sql(scripts = "/test-data.sql", executionPhase = Sql.ExecutionPhase.BEFORE_TEST_METHOD)
@Sql(scripts = "/cleanup.sql", executionPhase = Sql.ExecutionPhase.AFTER_TEST_METHOD)
public class PoliticianIntegrationTest {
@Autowired
private PoliticianRepository repository;
@Test
void shouldCreatePoliticianViaApi() {
// Arrange
PoliticianRequest request = new PoliticianRequest("John", "Doe", "S");
// Act
ResponseEntity<Politician> response = restTemplate.postForEntity(
"/api/politicians",
request,
Politician.class
);
// Assert
assertThat(response.getStatusCode()).isEqualTo(HttpStatus.CREATED);
assertThat(response.getBody()).isNotNull();
// Verify in database
Politician saved = repository.findById(response.getBody().getId()).orElseThrow();
assertThat(saved.getFirstName()).isEqualTo("John");
}
}
```
## TestContainers for PostgreSQL
```java
@Testcontainers
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = ApplicationContext.class)
public class DatabaseIntegrationTest {
@ClassRule
public static PostgreSQLContainer<?> postgres = new PostgreSQLContainer<>("postgres:18")
.withDatabaseName("cia_test")
.withUsername("test")
.withPassword("test");
@BeforeClass
public static void setupTestDatabase() {
System.setProperty("spring.datasource.url", postgres.getJdbcUrl());
System.setProperty("spring.datasource.username", postgres.getUsername());
System.setProperty("spring.datasource.password", postgres.getPassword());
}
@Test
public void shouldConnectToDatabase() {
assertThat(postgres.isRunning()).isTrue();
}
}
```
## Security Integration Tests
```java
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {ApplicationContext.class, SecurityConfig.class})
@WebAppConfiguration
public class SecurityIntegrationTest {
@Autowired
private WebApplicationContext context;
private MockMvc mockMvc;
@Before
public void setup() {
mockMvc = MockMvcBuilders
.webAppContextSetup(context)
.apply(springSecurity())
.build();
}
@Test
@WithMockUser(roles = "ADMIN")
public void shouldAllowAdminAccess() throws Exception {
mockMvc.perform(get("/api/admin/users"))
.andExpect(status().isOk());
}
@Test
public void shouldDenyUnauthenticatedAccess() throws Exception {
mockMvc.perform(get("/api/admin/users"))
.andExpect(status().isUnauthorized());
}
}
```
## References
- Spring Framework Testing: https://docs.spring.io/spring-framework/reference/testing.html
- TestContainers: https://www.testcontainers.org/
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