When developing a Container Storage Interface (CSI) driver, it is useful to leverage as much prior work as possible. This includes source code (like the sample CSI hostpath driver) but also existing tests. Besides saving time, using tests written by someone else has the advantage that it can point out aspects of the specification that might have been overlooked otherwise.

An earlier blog post about end-to-end testing already showed how to use the Kubernetes storage tests for testing of a third-party CSI driver. That approach makes sense when the goal to also add custom E2E tests, but depends on quite a bit of effort for setting up and maintaining a test suite.

When the goal is to merely run the existing tests, then there are simpler approaches. This blog post introduces those

#testing #csi