java-testcontainers Integration test example using testcontainer library Versions Java: 21 SpringBoot: 3.4.0 postgresql testcontainers : 1.19.8 References https://testcontainers.com/ https://testcontainers.com/guides/introducing-testcontainers/ https://testcontainers.com/guides/testing-spring-boot-rest-api-using-testcontainers/