test(doctor): validate emitted proxy diagnostic type

steipete · steipete · commit e41b33eb44d8 · 2026-07-17T09:01:48.000+01:00
diff --git a/src/commands/doctor-web-fetch-proxy.test.ts b/src/commands/doctor-web-fetch-proxy.test.ts
@@ -18,6 +18,9 @@ async function collectDiagnostic(
   await noteWebFetchProxyDiagnostic({
     ...params,
     noteFn: (message) => {
+      if (typeof message !== "string") {
+        throw new TypeError("expected doctor proxy diagnostic to be a string");
+      }
       diagnostic = message;
     },
   });
