--- a/content/html/content/test/forms/test_valueasdate_attribute.html
+++ b/content/html/content/test/forms/test_valueasdate_attribute.html
@@ -345,31 +345,31 @@ function checkWithBustedPrototype()
     Date.prototype.getUTCFullYear = function() { return {}; };
     Date.prototype.getUTCMonth = function() { return {}; };
     Date.prototype.getUTCDate = function() { return {}; };
     Date.prototype.getTime = function() { return {}; };
     Date.prototype.setUTCFullYear = function(y,m,d) { };
 
     element.valueAsDate = new Date();
 
-    todo_isnot(element.valueAsDate, null, ".valueAsDate should not return null");
+    isnot(element.valueAsDate, null, ".valueAsDate should not return null");
     // TODO: check the Date object value (UTCFullYear, UTCMonth and UTCDate)
     // when .valueAsDate will stop returning null.
 
     // Same test as above but using NaN instead of {}.
 
     Date.prototype.getUTCFullYear = function() { return NaN; };
     Date.prototype.getUTCMonth = function() { return NaN; };
     Date.prototype.getUTCDate = function() { return NaN; };
     Date.prototype.getTime = function() { return NaN; };
     Date.prototype.setUTCFullYear = function(y,m,d) { };
 
     element.valueAsDate = new Date();
 
-    todo_isnot(element.valueAsDate, null, ".valueAsDate should not return null");
+    isnot(element.valueAsDate, null, ".valueAsDate should not return null");
     // TODO: check the Date object value (UTCFullYear, UTCMonth and UTCDate)
     // when .valueAsDate will stop returning null.
 
     Date.prototype.getUTCFullYear = backupPrototype.getUTCFullYear;
     Date.prototype.getUTCMonth = backupPrototype.getUTCMonth;
     Date.prototype.getUTCDate = backupPrototype.getUTCDate;
     Date.prototype.getTime = backupPrototype.getTime;
     Date.prototype.setUTCFullYear = backupPrototype.setUTCFullYear;