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Spark
![Spark dev containers: packaging code for testability](https://res.cloudinary.com/endjin/image/upload/f_auto/q_80/assets/images/blog/2024/12/spark-devcontainers-packaging-testable-code-header.png)
Spark dev containers: packaging code for testability
Once you've thoroughly tested your code against the local Spark service in your dev container, you'll want to run it in a real Spark cluster. This posts shows how to deploy such code to Microsoft Fabric.
![Spark dev containers: writing tests](https://res.cloudinary.com/endjin/image/upload/f_auto/q_80/assets/images/blog/2024/12/spark-devcontainers-writing-tests-header.png)
Spark dev containers: writing tests
Having seen earlier in the series how to configure a dev container to run Spark locally, this post shows how to write tests that use that local Spark service.
![Spark dev containers: running Spark locally](https://res.cloudinary.com/endjin/image/upload/f_auto/q_80/assets/images/blog/2024/12/spark-devcontainers-local-spark.png)
Spark dev containers: running Spark locally
See how to configure a dev container to run Spark locally, to improve development feedback loops.