Commit ac1134f3 authored by Robert Hensing's avatar Robert Hensing
Browse files

testers.runNixOSTest: init 

An up to date alternative to pkgs.nixosTest
parent 6948ef4d

doc/builders/testers.chapter.md

+20 −0
Original line number Diff line number Diff line
@@ -164,6 +164,26 @@ tests.fetchgit = testers.invalidateFetcherByDrvHash fetchgit { 
};

```



## `runNixOSTest` {#tester-runNixOSTest}



A helper function that behaves exactly like the NixOS `runTest`, except it also assigns this Nixpkgs package set as the `pkgs` of the test and makes the `nixpkgs.*` options read-only.



If your test is part of the Nixpkgs repository, or if you need a more general entrypoint, see ["Calling a test" in the NixOS manual](https://nixos.org/manual/nixos/stable/index.html#sec-calling-nixos-tests).



Example:



```nix

pkgs.testers.runNixOSTest ({ lib, ... }: {

  name = "hello";

  nodes.machine = { pkgs, ... }: {

    environment.systemPackages = [ pkgs.hello ];

  };

  testScript = ''

    machine.succeed("hello")

  '';

})

```



## `nixosTest` {#tester-nixosTest}



Run a NixOS VM network test using this evaluation of Nixpkgs.

pkgs/build-support/testers/default.nix

+14 −0
Original line number Diff line number Diff line
@@ -94,6 +94,20 @@ 
        else salted;

    in checked;



  # See doc/builders/testers.chapter.md or

  # https://nixos.org/manual/nixpkgs/unstable/#tester-runNixOSTest

  runNixOSTest =

    let nixos = import ../../../nixos/lib {};

    in testModule:

        nixos.runTest {

          _file = "pkgs.runNixOSTest implementation";

          imports = [

            (lib.setDefaultModuleLocation "the argument that was passed to pkgs.runNixOSTest" testModule)

          ];

          hostPkgs = pkgs;

          node.pkgs = pkgs;

        };



  # See doc/builders/testers.chapter.md or

  # https://nixos.org/manual/nixpkgs/unstable/#tester-invalidateFetcherByDrvHash

  nixosTest =

pkgs/build-support/testers/test/default.nix

+11 −0
Original line number Diff line number Diff line
@@ -14,6 +14,17 @@ in 
lib.recurseIntoAttrs {

  hasPkgConfigModule = pkgs.callPackage ../hasPkgConfigModule/tests.nix { };



  runNixOSTest-example = pkgs-with-overlay.testers.runNixOSTest ({ lib, ... }: {

    name = "runNixOSTest-test";

    nodes.machine = { pkgs, ... }: {

      system.nixos = dummyVersioning;

      environment.systemPackages = [ pkgs.proof-of-overlay-hello pkgs.figlet ];

    };

    testScript = ''

      machine.succeed("hello | figlet >/dev/console")

    '';

  });



  # Check that the wiring of nixosTest is correct.

  # Correct operation of the NixOS test driver should be asserted elsewhere.

  nixosTest-example = pkgs-with-overlay.testers.nixosTest ({ lib, pkgs, figlet, ... }: {