test: add more descriptive err message to assert

Josh-Broomfield · danbev · commit 2f36cb412517 · 2018-10-03T12:09:30.000+02:00
PR-URL: #23118 Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Rich Trott <rtrott@gmail.com>
diff --git a/test/parallel/test-child-process-disconnect.js b/test/parallel/test-child-process-disconnect.js
@@ -93,7 +93,11 @@ if (process.argv[2] === 'child') {
         // ready to be disconnected
         if (data === 'ready') {
           child.disconnect();
-          assert.throws(child.disconnect.bind(child), Error);
+          assert.throws(
+            child.disconnect.bind(child),
+            {
+              code: 'ERR_IPC_DISCONNECTED'
+            });
           return;
         }
 
