Have you worked with the Testcontainers library in your last project?

Yes, in one of my recent projects, I used the Testcontainers library for integration testing. It allows running Docker containers with necessary services (such as a database or message broker) directly from tests, which simplifies environment setup and makes tests more reliable and isolated.

Example of usage with PostgreSQL:

@Testcontainers
public class MyRepositoryTest {

    @Container
    public static PostgreSQLContainer<?> postgres = new PostgreSQLContainer<>("postgres:13")
        .withDatabaseName("testdb")
        .withUsername("user")
        .withPassword("password");

    @Test
    void testDatabaseConnection() {
        String jdbcUrl = postgres.getJdbcUrl();
        // Use jdbcUrl for connection and repository testing
    }
}