nixos/tests: fix nix-serve path

nixos/tests: rename nix-ssh-serve to nix-serve-ssh

nixos/tests/nix-serve-ssh: add --experimental-features

nixos-serve: add nix-serve-ssh to passthru.tests

nixos/tests/all-tests.nix

@@ -315,8 +315,8 @@ in
   nginx-sso = handleTest ./nginx-sso.nix {};
   nginx-variants = handleTest ./nginx-variants.nix {};
   nitter = handleTest ./nitter.nix {};
-  nix-serve = handleTest ./nix-ssh-serve.nix {};
-  nix-ssh-serve = handleTest ./nix-ssh-serve.nix {};
+  nix-serve = handleTest ./nix-serve.nix {};
+  nix-serve-ssh = handleTest ./nix-serve-ssh.nix {};
   nixops = handleTest ./nixops/default.nix {};
   nixos-generate-config = handleTest ./nixos-generate-config.nix {};
   node-red = handleTest ./node-red.nix {};

nixos/tests/nix-serve-ssh.nix

@@ -35,7 +35,7 @@ in
 
        client.fail("diff /root/other-store$(cat mach-id-path) /etc/machine-id")
        # Currently due to shared store this is a noop :(
-       client.succeed("nix copy --to ssh-ng://nix-ssh@server $(cat mach-id-path)")
+       client.succeed("nix copy --experimental-features 'nix-command' --to ssh-ng://nix-ssh@server $(cat mach-id-path)")
        client.succeed(
            "nix-store --realise $(cat mach-id-path) --store /root/other-store --substituters ssh-ng://nix-ssh@server"
        )

pkgs/tools/package-management/nix-serve/default.nix

@@ -37,7 +37,10 @@ stdenv.mkDerivation {
                 --add-flags $out/libexec/nix-serve/nix-serve.psgi
   '';
 
-  passthru.tests.nix-serve = nixosTests.nix-serve;
+  passthru.tests = {
+    nix-serve = nixosTests.nix-serve;
+    nix-serve-ssh = nixosTests.nix-serve-ssh;
+  };
 
   meta = {
     homepage = "https://github.com/edolstra/nix-serve";