Merge pull request web-platform-tests#22 from w3c/unimplemented-error…

…-message Improve the assertion failure when testing for an unimplemented attribute
bocoup · Apr 5, 2013 · 0283545 · 0283545
2 parents b443a3b + cef1039
commit 0283545
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/idlharness.js b/idlharness.js
@@ -1374,6 +1374,9 @@ IdlInterface.prototype.test_members = function()
                                     "window does not have own property " + format_value(this.name));
                 assert_own_property(window[this.name], "prototype",
                                     'interface "' + this.name + '" does not have own property "prototype"');
+                assert_true(member.name in window[this.name].prototype,
+                            "The prototype object must have a property " +
+                            format_value(member.name));
 
                 // TODO: Needs to test for LenientThis.
                 assert_throws(new TypeError(), function() {