A presentation at All Things Open 2024 in in Raleigh, NC, USA by Oleg Šelajev
Making your own Making yourmodule own Testcontainers for fun and profit! Testcontainers module for fun and profit!
What is productivity? The developer-centric approach to measuring and improving productivity. Abi Noda, DX Margaret-Anne Storey, University of Victoria Nicole Forsgren, Microsoft Research Michaela Greiler, DX https://queue.acm.org/detail.cfm?id=3595878
TESTS
Test dependencies as code Testcontainers is an open source library for providing ephemeral, lightweight instances of test dependencies. var redis = new GenericContainer(“redis:6-alpine”).withExposedPorts(6379)
Testcontainers: Test dependencies with real services wrapped in Docker containers var granite = new GenericContainer(“redhat/granite-7b-lab-gguf”).withCommand(“—serve”) Testcontainers Library Testcontainers Desktop Testcontainers Cloud Fast, reasistic, cost-effective dependencies Better local development and debugging experience Operationalize and roll out Testcontainers across the teams
Testcontainers modules Test against any database, message broker, browser… or just about anything that runs in a Docker container!
start.spring.io has it :)
Testcontainers module functionality Container & Service Configuration Lifecycle API Convenience methods
protected void configure()
Convenience methods
TEST! 🔥🔥 🔥 DEMO TIME
Custom Commands
KafkaContainer this.setCommand(new String[]{“-c”, “while [ ! -f /testcontainers_start.sh ]; do sleep 0.1; done; /testcontainers_start.sh”});
KafkaContainer this.setCommand(new String[]{“-c”, “while [ ! -f /testcontainers_start.sh ]; do sleep 0.1; done; /testcontainers_start.sh”});
Networks
Docker configuration
Tools in containers
Tools in containers
TEST! 🔥🔥 🔥 DEMO TIME
https://github.com/testcontainers/java-module-worksh op https://github.com/testcontainers/workshop https://testcontainers.com/desktop https://slack.testcontainers.com
Booth 35!
Testcontainers libraries become more and more popular in different programming language ecosystems and are a de-facto standard for integration testing in the Java community. One of the reasons for its popularity is the ecosystem of the modules — pre-defined abstractions for creating containerized services for your tests in a single line of code.
In this session, we’ll look at the architecture of Testcontainers modules and learn how to hide a lot of complexity behind a valuable and neat abstraction.
You’ll learn the best practices around the lifecycle of Testcontainers: resource cleanup with Ryuk, waiting strategies, and out-of-the-box advanced data initialization options.
We’ll cover various options for compliance with in-house policies for Docker images, look at custom networking, and how you can offer developers a paved road to chaos engineering and other more involved topics.
Whether you’re working on technologies consumed via Testcontainers or want to improve your team’s productivity, creating a Testcontainers module is an excellent way to harness the complexity of your integration tests and contribute to the open source ecosystem!
Here’s what was said about this presentation on social media.
for free. You
can too.