diff --git a/mozilla/testing/mochitest/browser-test.js b/mozilla/testing/mochitest/browser-test.js
index eb09234eaac..593419704bc 100644
--- a/mozilla/testing/mochitest/browser-test.js
+++ b/mozilla/testing/mochitest/browser-test.js
@@ -125,6 +125,13 @@ function testScope(aTests) {
   this.todo = function test_todo(condition, name, diag) {
     self.tests.push(new testResult(!condition, name, diag, true));
   }
+  this.todo_is = function test_todo_is(a, b, name) {
+    self.todo(a == b, name, "Got " + a + ", expected " + b);
+  },
+  this.todo_isnot = function test_todo_isnot(a, b, name) {
+    self.todo(a != b, name, "Didn't expect " + a + ", but got it");
+  },
+
   this.waitForExplicitFinish = function test_WFEF() {
     self.done = false;
   }
diff --git a/mozilla/testing/mochitest/tests/browser/browser_fail.js b/mozilla/testing/mochitest/tests/browser/browser_fail.js
index 07e1571e45e..3d91439ea2c 100644
--- a/mozilla/testing/mochitest/tests/browser/browser_fail.js
+++ b/mozilla/testing/mochitest/tests/browser/browser_fail.js
@@ -3,4 +3,6 @@ function test() {
   is(true, false, "fail is");
   isnot(true, true, "fail isnot");
   todo(true, "fail todo");
+  todo_is(true, true, "fail todo_is");
+  todo_isnot(true, false, "fail todo_isnot");
 }
diff --git a/mozilla/testing/mochitest/tests/browser/browser_pass.js b/mozilla/testing/mochitest/tests/browser/browser_pass.js
index b5d9dbf8cf1..ac35b5e522c 100644
--- a/mozilla/testing/mochitest/tests/browser/browser_pass.js
+++ b/mozilla/testing/mochitest/tests/browser/browser_pass.js
@@ -1,8 +1,10 @@
 function test() {
-  is(true, true, "pass is");
   ok(true, "pass ok");
+  is(true, true, "pass is");
   isnot(false, true, "pass isnot");
   todo(false, "pass todo");
+  todo_is(false, true, "pass todo_is");
+  todo_isnot(true, true, "pass todo_isnot");
 
   var func = is;
   func(true, true, "pass indirect is");