test: reduce string concatenations

PR-URL: https://github.com/nodejs/node/pull/12735
Refs: https://github.com/nodejs/node/pull/12455
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/test/parallel/test-cluster-message.js b/test/parallel/test-cluster-message.js
index df9f8ca2a4..48bd7ee36a 100644
--- a/test/parallel/test-cluster-message.js
+++ b/test/parallel/test-cluster-message.js
@@ -123,7 +123,7 @@ if (cluster.isWorker) {
       if (data.code === 'received message') {
         check('worker', data.echo === 'message from master');
       } else {
-        throw new Error('wrong TCP message received: ' + data);
+        throw new Error(`wrong TCP message received: ${data}`);
       }
     });
 
@@ -139,9 +139,8 @@ if (cluster.isWorker) {
 
   process.once('exit', function() {
     forEach(checks, function(check, type) {
-      assert.ok(check.receive, 'The ' + type + ' did not receive any message');
-      assert.ok(check.correct,
-                'The ' + type + ' did not get the correct message');
+      assert.ok(check.receive, `The ${type} did not receive any message`);
+      assert.ok(check.correct, `The ${type} did not get the correct message`);
     });
   });
 }