fix(discover): rewrite dotnet test/restore/format, not just build

src/discover/registry.rs

@@ -1283,6 +1283,30 @@ mod tests {
         );
     }
 
+    #[test]
+    fn test_rewrite_dotnet_subcommands() {
+        // All four subcommands have dedicated `rtk dotnet` proxies, so the rewrite
+        // rule must route them (issue #1830 — only `build` was covered before).
+        for sub in ["build", "test", "restore", "format"] {
+            assert_eq!(
+                rewrite_command_no_prefixes(&format!("dotnet {}", sub), &[]),
+                Some(format!("rtk dotnet {}", sub)),
+                "dotnet {} should rewrite",
+                sub
+            );
+        }
+        // Trailing args are preserved (the \b stops at the subcommand).
+        assert_eq!(
+            rewrite_command_no_prefixes("dotnet test --filter Category=Unit", &[]),
+            Some("rtk dotnet test --filter Category=Unit".into())
+        );
+        // Subcommands without a proxy must NOT be rewritten.
+        assert_eq!(rewrite_command_no_prefixes("dotnet publish", &[]), None);
+        assert_eq!(rewrite_command_no_prefixes("dotnet run", &[]), None);
+        // Word boundary guards against false prefixes.
+        assert_eq!(rewrite_command_no_prefixes("dotnet builder", &[]), None);
+    }
+
     #[test]
     fn test_rewrite_compound_and() {
         assert_eq!(

src/discover/rules.rs

@@ -591,7 +591,7 @@ pub const RULES: &[RtkRule] = &[
         subcmd_status: &[],
     },
     RtkRule {
-        pattern: r"^dotnet\s+build\b",
+        pattern: r"^dotnet\s+(build|test|restore|format)\b",
         rtk_cmd: "rtk dotnet",
         rewrite_prefixes: &["dotnet"],
         category: "Build",