Enable connectivity diagnostics in Connect mode

test/server/connectivity-diagnostics.test.js

@@ -1,10 +1,14 @@
 import assert from 'node:assert/strict';
+import fs from 'node:fs';
+import path from 'node:path';
 import test from 'node:test';
 import {
   createConnectivityDiagnosticsService,
   CURL_META_MARKER,
 } from '../../src/server/services/connectivityDiagnosticsService.js';
 
+const server = fs.readFileSync(path.resolve(import.meta.dirname, '../../src/server/index.js'), 'utf8');
+
 function response(body = '', overrides = {}) {
   return {
     exitCode: 0,
@@ -48,6 +52,11 @@ test('connectivity diagnostics force separate direct and VPN paths', async () =>
   assert.ok(calls.some((args) => args.includes('--proxy') && args.includes('http://127.0.0.1:18080')));
 });
 
+test('connectivity diagnostics endpoint is available in Connect and Gateway', () => {
+  assert.match(server, /const localConnectivityDiagnostics = !remoteDataplane/);
+  assert.doesNotMatch(server, /settings\.appMode !== 'gateway'[\s\S]{0,120}ENDPOINT_NOT_FOUND/);
+});
+
 test('connectivity diagnostics reports a likely direct restriction without claiming its owner', async () => {
   const attempts = new Map();
   const execute = async (args) => {