Testing kubeconfig

where can I find the documentation for testing kubeconfig

The solutions dont reference any documentation so I am not sure how administrator is coming up with solutions

I’d start out with the tutorial from the doc pages, which will show you the basic kubectl commands for updating and setting fields in a kubeconfig file. Using the kubectl config --help command is also helpful, since it shows options that you might not otherwise be aware of. Between those and doing the labs on configuration, you’ll get a pretty good grounding in how what’s in a kubeconfig file, what the current settings are, and which context is in use when you use kubectl.