test: improve assertions in test-cli-node-print-help

PR-URL: #22489 Reviewed-By: Richard Lau <riclau@uk.ibm.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com>
nodejs · Sep 2, 2018 · 170c7e7 · 170c7e7
1 parent 17bc49e
commit 170c7e7
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/test/parallel/test-cli-node-print-help.js b/test/parallel/test-cli-node-print-help.js
@@ -44,11 +44,13 @@ function validateNodePrintHelp() {
 function testForSubstring(options) {
   if (options.compileConstant) {
     options.flags.forEach((flag) => {
-      assert.strictEqual(stdOut.indexOf(flag) !== -1, true);
+      assert.strictEqual(stdOut.indexOf(flag) !== -1, true,
+                         `Missing flag ${flag} in ${stdOut}`);
     });
   } else {
     options.flags.forEach((flag) => {
-      assert.strictEqual(stdOut.indexOf(flag), -1);
+      assert.strictEqual(stdOut.indexOf(flag), -1,
+                         `Unexpected flag ${flag} in ${stdOut}`);
     });
   }
 }