test: use regex error checks in test-util-format

superwoods · MylesBorins · commit bbe328830ffd · 2017-09-05T12:49:56.000-04:00
Replace constructor with regular expression for second argument to assert.throws() in test-util-format. PR-URL: #14299 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: Refael Ackermann <refack@gmail.com> Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
diff --git a/test/parallel/test-util-format.js b/test/parallel/test-util-format.js
@@ -25,7 +25,7 @@ assert.strictEqual(util.format('%s', symbol), 'Symbol(foo)');
 assert.strictEqual(util.format('%j', symbol), 'undefined');
 assert.throws(function() {
   util.format('%d', symbol);
-}, TypeError);
+}, /^TypeError: Cannot convert a Symbol value to a number$/);
 
 assert.strictEqual(util.format('%d', 42.0), '42');
 assert.strictEqual(util.format('%d', 42), '42');
