add integration test

lib/routes/api/accounts.js

@@ -43,6 +43,7 @@ function validateUpdateCall(opts) {
   const hasWhisper = opts.whisper;
   const count = [
     'call_hook',
+    'child_call_hook',
     'call_status',
     'listen_status',
     'mute_status']
@@ -56,11 +57,13 @@ function validateUpdateCall(opts) {
     case 1:
       // good
       break;
+    case 2:
+      if (opts.call_hook && opts.child_call_hook) break;
+    // eslint-disable-next-line no-fallthrough
     default:
       throw new DbErrorBadRequest('multiple options are not allowed in updateCall');
   }
 
-  if (opts.call_hook && !opts.call_hook.url) throw new DbErrorBadRequest('missing call_hook.url');
   if (opts.call_status && !['completed', 'no-answer'].includes(opts.call_status)) {
     throw new DbErrorBadRequest('invalid call_status');
   }