Add Testcontainers for integration testing

[ilopezluna]

Checked

• I searched existing ideas and did not find a similar one
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• I've clearly described the feature request and motivation for it

Feature request

Add Testcontainers library to spin up required containers for integration testing.
The library can significantly improve the testing workflows by allowing to configure and launch test environments that mimic the real dependencies without having to use any additional script or docker-compose file.

Motivation

Ensuring that the integration tests accurately reflect real-world usage scenarios is paramount to delivering robust and reliable software. However, achieving this can often be challenging due to the complexity of our application's environment and dependencies. Testcontainers offers a scalable and efficient solution to these challenges by enabling us to:

• Dynamically create and manage application dependencies such as databases, web browsers, and other services within the CI/CD pipeline.
• Improve the reliability and consistency of our integration tests by using containerized instances that are identical to our production environment.
• Reduce setup time and complexity for developers, facilitating easier contributions and a smoother onboarding process.

Proposal (If applicable)

Hi from the Testcontainers community! 👋
I'm one of the maintainers of the OSS Testcontainers library (which is nowadays supported by Docker) and I'd like to contribute a small improvement regarding the current integration test suite.
I have created this branch to show how Testcontainers can be used to spin up a Redis container without need to use any additional script file, right from within the test code.

I leave here the link to our docs site in case you are interested in understanding more about our proposition to run integration tests with real dependencies: https://www.testcontainers.org/

Please let me know if you want to know more about the project, I'm open to any collaboration.