Expect should still fail for non-asynchronous tests.

chrome/test/data/webui/assertions.js

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 function WebUIAssertionsTest() {}
 
 WebUIAssertionsTest.prototype = {
   __proto__: testing.Test.prototype,
   browsePreload: DUMMY_URL,
 };
@@ skipping 41 matching lines @@
 TEST_F('WebUIAssertionsTest', 'testConstructedMessage', function() {
   var result = runTestFunction(
       'testConstructMessage', testConstructMessage, []);
   resetTestState();
 
   expectEquals(
       1, result[1].match(/assertTrue\(false, message\): 1 2: false/g).length);
 });
 
 /**
- * Async version of WebUIAssertionsTest.
+ * Failing version of WebUIAssertionsTest.
+ * @extends WebUIAssertionsTest
+ * @constructor
+ */
+function WebUIAssertionsTestFail() {}
+
+WebUIAssertionsTestFail.prototype = {
+  __proto__: WebUIAssertionsTest.prototype,
+
+  /** @inheritDoc */
+  testShouldFail: true,
+};
+
+// Test that an assertion failure fails test.
+TEST_F('WebUIAssertionsTestFail', 'testAssertFailFails', function() {
+  assertNotReached();
+});
+
+// Test that an expect failure fails test.

[Sheridan Rawlins, 2011/10/28 20:51:20]

FYI, this is the <new> test, which failed before the fix in test_api.js

+TEST_F('WebUIAssertionsTestFail', 'testExpectFailFails', function() {
+  expectNotReached();
+});
+
+/**
+ * Async version of WebUIAssertionsTestFail.
  * @extends WebUIAssertionsTest
  * @constructor
  */
 function WebUIAssertionsTestAsyncFail() {}
 
 WebUIAssertionsTestAsyncFail.prototype = {
-  __proto__: WebUIAssertionsTest.prototype,
+  __proto__: WebUIAssertionsTestFail.prototype,
 
   /** @inheritDoc */
   isAsync: true,
-
-  /** @inheritDoc */
-  testShouldFail: true,
 };
 
 // Test that an assertion failure doesn't hang forever.
 TEST_F('WebUIAssertionsTestAsyncFail', 'testAsyncFailCallsDone', function() {
   assertNotReached();
 });