nixpkgs/nixos/tests/victoriametrics.nix

# This test runs victoriametrics and checks if victoriametrics is able to write points and run simple query

import ./make-test-python.nix (
  { pkgs, ... }:
  {
    name = "victoriametrics";
    meta = with pkgs.lib.maintainers; {
      maintainers = [
        yorickvp
        ryan4yin
      ];
    };

    nodes = {
      one =
        { ... }:
        {
          services.victoriametrics.enable = true;
        };
    };

    testScript = ''
      start_all()

      one.wait_for_unit("victoriametrics.service")

      # write some points and run simple query
      out = one.succeed(
          "curl -f -d 'measurement,tag1=value1,tag2=value2 field1=123,field2=1.23' -X POST 'http://localhost:8428/write'"
      )
      cmd = (
          """curl -f -s -G 'http://localhost:8428/api/v1/export' -d 'match={__name__!=""}'"""
      )
      # data takes a while to appear
      one.wait_until_succeeds(f"[[ $({cmd} | wc -l) -ne 0 ]]")
      out = one.succeed(cmd)
      assert '"values":[123]' in out
      assert '"values":[1.23]' in out
    '';
  }
)