tests: Add infrastructure-test

flake-parts/tests.nix

@@ -0,0 +1,28 @@
+{ inputs, self, ... }:
+{
+  perSystem =
+    { pkgs, lib, ... }:
+    {
+      checks =
+        "${self}/tests"
+        |> builtins.readDir
+        |> lib.attrNames
+        |> lib.map (name: {
+          name = "${name}-test";
+          value = pkgs.testers.runNixOSTest (
+            {
+              name = "${name}-test";
+            }
+            // import "${self}/tests/${name}" {
+              inherit
+                inputs
+                self
+                pkgs
+                lib
+                ;
+            }
+          );
+        })
+        |> lib.listToAttrs;
+    };
+}