just do everything i guess

test/test_inshellah.ml

@@ -500,6 +500,52 @@ Options:
    * here we just verify the parser extracts it correctly. *)
   check "has entries too" (List.length r.entries >= 2)
 
+let test_nu_file_parsing () =
+  Printf.printf "\n== .nu file parsing ==\n";
+  let nu_source = {|module completions {
+
+  # Unofficial CLI tool
+  export extern mytool [
+    --help(-h)                # Print help
+    --version(-V)             # Print version
+  ]
+
+  # List all items
+  export extern "mytool list" [
+    --raw                     # Output as JSON
+    --format(-f): string      # Output format
+    --help(-h)                # Print help
+    name?: string             # Filter by name
+  ]
+
+}
+
+use completions *
+|} in
+  let r = Inshellah.Store.parse_nu_completions "mytool" nu_source in
+  check "has entries" (List.length r.entries = 2);
+  check "has subcommands" (List.length r.subcommands >= 1);
+  let list_sc = List.find_opt (fun (sc : subcommand) -> sc.name = "list") r.subcommands in
+  check "has list subcommand" (list_sc <> None);
+  check "description" (r.description = "Unofficial CLI tool");
+  (* test subcommand lookup *)
+  let r2 = Inshellah.Store.parse_nu_completions "mytool list" nu_source in
+  check "list has entries" (List.length r2.entries = 3);
+  let has_format = List.exists (fun (e : entry) ->
+    e.switch = Both ('f', "format")) r2.entries in
+  check "list has --format(-f)" has_format;
+  check "list has positional" (List.length r2.positionals >= 1)
+
+let test_italic_synopsis () =
+  Printf.printf "\n== Italic in SYNOPSIS ==\n";
+  let groff = {|.SH Synopsis
+.LP
+\f(CRnix-env\fR \fIoperation\fR [\fIoptions\fR] [\fIarguments…\fR]
+.SH Description
+|} in
+  let cmd = extract_synopsis_command groff in
+  check "no phantom operation" (cmd = Some "nix-env")
+
 let test_font_boundary_spacing () =
   Printf.printf "\n== Font boundary spacing ==\n";
   (* \fB--max-results\fR\fIcount\fR should become "--max-results count" *)
@@ -556,5 +602,9 @@ let () =
   test_commands_section_subcommands ();
   test_self_listing_detection ();
 
+  Printf.printf "\nRunning .nu and synopsis tests...\n";
+  test_nu_file_parsing ();
+  test_italic_synopsis ();
+
   Printf.printf "\n=== Results: %d passed, %d failed ===\n" !passes !failures;
   if !failures > 0 then exit 1