Added tests directory for testing in vm

tests/default.nix

@@ -0,0 +1,27 @@
+{ modulesPath, ... }:
+
+{
+  imports = [
+    (modulesPath + "/profiles/qemu-guest.nix")
+  ];
+
+  nixpkgs.config.allowUnfree = true;
+
+  users.users.test = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ];
+    initialPassword = "test";
+  };
+
+  services.invoice-ninja = {
+    enable = true;
+    proxy.server = "caddy";
+    adminAccount.passwordFile = .invoice_ninja_test_password;
+    secretFile = ./test.env;
+  };
+
+  networking.firewall.enable = false;
+
+  services.resolved.enable = true;
+}
+

tests/invoice_ninja_test_password

@@ -0,0 +1 @@
+password

tests/test.env

@@ -0,0 +1,2 @@
+APP_KEY=base64:gJnNI8pOx4c0/Z6kl9mIjn0X9XkbJUWjtqnDFl9prvo=
+API_KEY=test-api-token