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Integration Testing with Testcontainers: Java & Spring Boot

Name: Integration Testing with Testcontainers: Java & Spring Boot
Rating: 4.4 (89 reviews)

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

Created byAyan Dutta, Learning From Experience

Last updated 11/2025

English

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.

Course content

12 sections • 39 lectures • 5h 7m total length

Course Overview and Prerequisites3:39
Get an overview of the course, learn the prerequisites, and understand the tools and technologies needed to master integration testing with Testcontainers and Spring Boot
How To Go Through The Course (Important)0:28
DO NOT SKIP - Code Repositories used in the course1:50
DO NOT SKIP - Join Our Learning Community0:10

Testcontainers Basics: GenericContainer vs. Specialized Containers6:23
Discover:
How GenericContainer works (custom images).
Preconfigured specialized containers (e.g., PostgreSQLContainer).
When to use each for faster, cleaner tests.
JUnit 5 + Testcontainers: Managing Container Lifecycles9:10
Learn best practices for:
Starting/stopping containers per test or per class.
Using JUnit 5 extensions (@Testcontainers).
Avoiding resource leaks in your test suite.

Configuring Logging in Testcontainers16:13
Learn how to capture and view logs directly from your running test containers, essential for debugging and understanding container behavior during test execution
Assessing Container Readiness with Wait Strategies12:56
Ensure test reliability by mastering WaitStrategy. Learn how to make your tests wait until containers are fully initialized and ready using strategies like checking logs, ports, or HTTP endpoints
Reusable Containers: Singleton Pattern8:32
Optimize test execution speed by implementing the singleton container pattern. Learn how to reuse a single container instance across multiple test classes, significantly reducing startup overhead.
Port Mapping Strategies7:45
Understand how Testcontainers handles port mapping between the host machine and containers. Learn how to retrieve dynamically assigned ports to connect your application during tests.
Setting Environment Variables4:28
Learn how to configure containers by passing environment variables during startup using the Testcontainers API, allowing for flexible container customization
Using Bind Mounts & Volumes5:12
Explore techniques for sharing files and directories between your host machine and test containers using bind mounts and Docker volumes for scenarios like seeding data or accessing configuration files.
Customizing Container Startup4:11
Gain finer control over container initialization by learning how to execute custom commands or scripts within the container after it starts but before your tests run.

Integration Testing Spring Boot with PostgreSQL using Testcontainers10:46
Implement integration tests for Spring Boot data repositories or services using a real PostgreSQL database instance managed entirely by Testcontainers.
Integration Testing Spring Boot with MySQL using Testcontainers7:52
Write robust integration tests for your Spring Boot application against a genuine MySQL database provisioned on-demand via Testcontainers.
Spring Boot DB Migration: Flyway + PostgreSQL with Testcontainers7:35
Learn how to validate your Flyway database migration scripts against a real PostgreSQL database as part of your automated integration test suite using Testcontainers.
Spring Boot DB Migration: Liquibase + PostgreSQL with Testcontainers10:04
Ensure your Liquibase database changelogs are correct by testing them against a PostgreSQL instance managed by Testcontainers within your Spring Boot integration tests.

Testing Spring Boot with PostgreSQL and Kafka using Testcontainers11:58
Tackle complex scenarios by testing Spring Boot applications that integrate with both PostgreSQL and Apache Kafka, managing both services with Testcontainers.
RabbitMQ Integration Testing with Spring Boot and Testcontainers12:47
Write integration tests for Spring Boot applications that produce or consume messages from RabbitMQ, using Testcontainers to provide a real broker instance.
ActiveMQ Integration Testing with Spring Boot and Testcontainers15:24
Learn how to perform integration testing for Spring Boot applications interacting with ActiveMQ Classic, leveraging Testcontainers to manage the broker lifecycle.
IBM MQ Integration Testing with Spring Boot and Testcontainers10:26
Discover how to test Spring Boot applications connecting to IBM MQ by utilizing the dedicated Testcontainers module for provisioning an MQ instance.

MongoDB Integration Testing with Spring Boot and Testcontainers8:02
Implement integration tests for your Spring Boot application using a real MongoDB instance managed by Testcontainers, ensuring your document interactions work correctly.
Redis Integration Testing with Spring Boot and Testcontainers4:12
Learn how to test Spring Boot applications that use Redis for caching or data storage by integrating with a Redis container managed via Testcontainers.
Elasticsearch Integration Testing with Spring Boot and Testcontainers6:06
Write integration tests for Spring Boot applications interacting with Elasticsearch, using Testcontainers to provide a reliable search cluster instance for your tests.

WireMock with Testcontainers for External API Mocking12:07
Integrate WireMock running inside a Docker container managed by Testcontainers to mock external HTTP APIs your Spring Boot application depends on during tests.
MockServer Integration with Testcontainers for Edge API Testing13:49
Use MockServer provisioned by Testcontainers to create sophisticated mocks and expectations for external APIs, enabling robust testing of edge cases and failure scenarios.

Maven Surefire & Failsafe Plugins Explained: Generate Detailed Test Reports18:35
Learn how Maven generates test reports using Surefire and Failsafe plugins — an essential foundation for CI/CD test reporting.
Spring Boot CI/CD Integration Testing with Testcontainers using CircleCI19:39
Learn how to configure a CircleCI pipeline (config.yml) to execute your Spring Boot application's integration tests that rely on Testcontainers and Docker.
Spring Boot CI/CD Integration Testing with Testcontainers using GitHub Actions9:16
Discover how to set up a GitHub Actions workflow (*.yml) to build and run your Spring Boot Testcontainers-based integration tests within your GitHub repository's CI/CD process.
GitLab CI/CD Integration with Testcontainers12:30
Configure your GitLab CI pipeline (.gitlab-ci.yml) to successfully execute integration tests using Testcontainers, ensuring Docker-in-Docker or a suitable runner setup.

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

Disclaimer: This course requires you to download Docker Desktop from its official website. If you are Udemy Business user, please check with your employer before downloading software.

Testcontainers and Spring Boot: Real-World Integration Testing for Modern Java Applications
Master 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.

Integration Testing with Testcontainers: Java & Spring Boot

What you'll learn

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Course content

Getting Started4 lectures • 6min

Environment Setup4 lectures • 13min

Fundamentals of Testcontainers2 lectures • 16min

Testcontainers Tips & Tricks7 lectures • 59min

Spring Boot Integration Testing – Databases4 lectures • 36min

Messaging Systems Integration Testing (Kafka, RabbitMQ, ActiveMQ,IBMMQ)4 lectures • 51min

Integration Testing NoSQL Databases3 lectures • 18min

Web/UI Testing1 lecture • 12min

External API Mocking2 lectures • 26min

Spring Boot + CI/CD Integration with Testcontainers4 lectures • 1hr

Requirements

Description

Who this course is for: