nixos machine tests

nix/tests/checks/basic.nix

@@ -0,0 +1,56 @@
+{
+  nixosTest,
+  self,
+  ...
+}:
+nixosTest {
+  name = "basic";
+
+  nodes = {
+    client = {pkgs, ...}: {
+      imports = [../profiles/test-setup.nix];
+
+      environment.systemPackages = with pkgs; [
+        netcat
+      ];
+    };
+
+    server = {pkgs, ...}: {
+      imports = [
+        ../profiles/test-setup.nix
+        self.nixosModules.pi-air-quality-monitor
+      ];
+
+      users.users.test = {
+        isNormalUser = true;
+        extraGroups = ["wheel"];
+        packages = with pkgs; [
+          tree
+        ];
+      };
+
+      services.pi-air-quality-monitor = {
+        enable = true;
+        openFirewall = true;
+
+        settings = {
+          port = 8080;
+          user = "pi-aqm";
+          group = "pi-aqm";
+        };
+      };
+
+      system.stateVersion = "23.11";
+    };
+  };
+
+  testScript = ''
+    server.wait_for_unit("default.target")
+    server.succeed("ls -lah /dev/ttyUSB0")
+    server.succeed('systemctl status pi-air-quality-monitor | grep \"Active: active (running)\" || return 0')
+    #server.succeed('nc -vz server 8080')
+
+    #client.wait_for_unit("default.target")
+    #client.succeed("nc -vz server 8080")
+  '';
+}

nix/tests/default.nix

@@ -0,0 +1,26 @@
+{
+  self,
+  config,
+  inputs,
+  lib,
+  ...
+}: {
+  perSystem = {
+    pkgs,
+    self',
+    ...
+  }: let
+    callPackage = lib.callPackageWith (pkgs
+      // {
+        inherit (config.flake) nixosModules;
+        inherit inputs;
+      });
+  in {
+    packages.test = self'.checks.basic.driverInteractive;
+
+    checks = {
+      basic = callPackage ./checks/basic.nix {inherit self;};
+      default = self'.checks.basic;
+    };
+  };
+}

nix/tests/profiles/test-setup.nix

@@ -0,0 +1,12 @@
+{
+  virtualisation = {
+    cores = 2;
+    memorySize = 1024;
+    qemu.options = [
+      "-nographic"
+      "-vga none -enable-kvm"
+      "-device virtio-gpu-pci,xres=720,yres=1440"
+      "-serial pty"
+    ];
+  };
+}