m1n1: enable tests

pkgs/by-name/m1/m1n1/package.nix

@@ -4,6 +4,7 @@
   fetchFromGitHub,
   imagemagick,
   source-code-pro,
+  python3Packages,
   nix-update-script,
 }:
 stdenv.mkDerivation (finalAttrs: {
@@ -47,6 +48,25 @@ stdenv.mkDerivation (finalAttrs: {
     runHook postInstall
   '';
 
+  doCheck = stdenv.buildPlatform.canExecute stdenv.hostPlatform;
+
+  nativeCheckInputs = with python3Packages; [
+    pytest
+  ];
+
+  checkInputs = with python3Packages; [
+    construct
+    pyserial
+  ];
+
+  checkPhase = ''
+    runHook preCheck
+
+    pytest
+
+    runHook postCheck
+  '';
+
   passthru = {
     updateScript = nix-update-script { };
   };