Integration Testing with Testcontainers: Java & Spring Boot

Java & Spring Boot Integration Testing with Testcontainers: Databases, Kafka, CI/CD

What you'll learn
- Build real-world integration tests for Spring Boot applications using Testcontainers, Docker containers, and production-grade environments.
- Perform integration testing for databases like PostgreSQL, MySQL, MongoDB, Redis, and Elasticsearch using real containerized services.
- Test messaging systems including Kafka, RabbitMQ, ActiveMQ, and IBM MQ in Spring Boot applications using Testcontainers.
- Integrate Testcontainers into CI/CD pipelines with GitHub Actions, GitLab CI, and CircleCI, and generate professional test reports.

Requirements
- Familiarity with basic Java syntax
- Spring Boot basic fundamentals
- No prior experience with Testcontainers is required — all core concepts are taught from scratch

Description
Testcontainers and Spring Boot: Real-World Integration Testing for Modern Java ApplicationsMaster integration testing using Docker containers for databases, messaging systems, external APIs, and CI/CD pipelines.

Tired of unreliable integration tests that break in production? In this course, you will learn to replace brittle mocks with real containerized services using Testcontainers — the powerful Java library trusted by top developers for production-like integration testing.

You will build Spring Boot applications tested against real instances of PostgreSQL, Kafka, MongoDB, Redis, and more — all running inside isolated Docker containers.

Key Skills You Will Master:

Testcontainers Core (JUnit 5 and Spring Boot 3.1+)

Start containers easily using @Container and @Testcontainers annotations

Choose between GenericContainer and specialized containers like PostgreSQLContainer

Utilize Spring Boot 3.1’s @ServiceConnection for automatic container configuration

Database Integration Testing

Test database migrations with Flyway and Liquibase inside real PostgreSQL/MySQL containers

Solve common issues like connection pooling, transaction isolation, and schema versioning

Messaging Systems Integration Testing

Validate Kafka, RabbitMQ, ActiveMQ, and IBM MQ messaging flows using real message brokers

Test consumer retries, dead-letter queues, and serialization logic

CI/CD Integration Testing

Speed up pipelines by reusing containers with the Singleton pattern

Integrate Testcontainers into GitHub Actions, GitLab CI, and CircleCI workflows

Generate detailed test reports with Maven Surefire and Failsafe plugins

Advanced Testing Scenarios

Test MongoDB queries and Redis caching inside containers

Run Selenium-based UI tests inside Dockerized Chrome/Firefox browsers

Mock external APIs using WireMock and MockServer in Testcontainers environments

Why This Course Works:

For Developers:

Fix "works on my machine" bugs with real integration environments

Reduce test flakiness by 60–70 percent compared to mock-based tests

Learn best practices used by top Java teams in production systems

For Tech Leads and Architects:

Standardize testing strategies across microservices and monolithic applications

Cut CI/CD build times and cloud infrastructure costs with smarter container management

Prerequisites:

Java and Spring Boot basic experience

Familiarity with Docker (running containers)

Learn to design scalable, reliable integration tests that mirror production behavior — and gain confidence in your Spring Boot deployments.Enroll now and master Testcontainers for professional-grade Java testing.

Who this course is for:
- Java Developers (especially Spring Boot Developers) who want to master real-world integration testing with Testcontainers and Docker
- Backend developers and software engineers building microservices or monolithic applications needing production-like integration tests.
- Tech Leads who need to standardize testing across microservices and optimize CI/CD pipelines (GitHub Actions/CircleCI) with Testcontainers.
- Full-Stack Developers working with NoSQL (MongoDB/Redis) or UI tests (Selenium) who want to run everything in isolated Docker containers.
- QA engineers, SDETs, and testers interested in testing databases, messaging systems, and external APIs using containerized services.
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