Document how and if to run NixOS tests

[573]

I am getting an

error: a 'x86_64-linux' with features {kvm, nixos-test} is required to build '/nix/store/1rq4j0hk5g5p3917q13qzpa7rj19r61s-vm-test-run-redis.drv', but I am a 'x86_64-linux' with features {benchmark, big-parallel, nixos-test}

when running cachix-action after install-nix-action against https://github.com/573/nix-github-integration-tests.

Would I need to add the line system-features = nixos-test to the configuration and how ?

I have tried and failed to add the following line to my actions yml already:

sudo sh -c echo system-features = nixos-test >> /etc/nix/nix.conf

Original question

[573]

By adding the lines mkdir -p ~/.config/nix and echo system-features = kvm nixos-test >> ~/.config/nix/nix.conf (ref.) to a run section of the action yml file integration tests are enabled.

[domenkozar]

Those tests will run very slowly since there's no hardware acceleration support.

[573]

@domenkozar thanks for pointing this out!

I recently discovered that I chose the wrong approach here as nixosTests really seem to be targeting service to service communication as I understand it now.

Luckily I have figured out (not me TBH and yes got the basic idea from here) how to do integration testing.

[domenkozar]

Yes, I should document this.

[domenkozar]

Documented!