test: improve test-vm-cached-data.js

mpelekh · andrew749 · commit 944046705e4e · 2017-07-19T13:54:31.000-07:00
* verify error message by adding 2nd argument to throws in test-assert PR-URL: nodejs/node#11974 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
diff --git a/test/parallel/test-vm-cached-data.js b/test/parallel/test-vm-cached-data.js
@@ -89,4 +89,4 @@ assert.throws(() => {
   new vm.Script('function abc() {}', {
     cachedData: 'ohai'
   });
-});
+}, /^TypeError: options.cachedData must be a Buffer instance$/);
