Support javascript gtests in an extension background page.

chrome/test/data/webui/test_api.js

 // Copyright (c) 2012 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.
 
 /**
  * @fileoverview Library providing basic test framework functionality.
  */
 
 /**
  * Namespace for |Test|.
@@ skipping 812 matching lines @@
         ok = createExpect(currentTestCase.tearDown.bind(
             currentTestCase)).call(null) && ok;
 
         if (!ok && result)
           result = [false, errorsToMessage(errors, result[1])];
 
         currentTestCase = null;
       }
       if (!result)
         result = testResult();
-      chrome.send('testResult', result);
+      if (chrome.send) {
+        // For WebUI tests.
+        chrome.send('testResult', result);
+      } else if (window.domAutomationController.send) {
+        // For extension tests.
+        valueResult = { 'result': result[0], message: result[1] };
+        window.domAutomationController.send(JSON.stringify(valueResult));
+      }
       errors.splice(0, errors.length);
     } else {
       console.warn('testIsDone already');
     }
   }
 
   /**
    * Converts each Error in |errors| to a suitable message, adding them to
    * |message|, and returns the message string.
    * @param {Array.<Error>} errors Array of errors to add to |message|.
@@ skipping 250 matching lines @@
    * @return {boolean} true always to signal successful execution (but not
    *     necessarily successful results) of this test.
    * @see errors
    * @see runTestFunction
    */
   function runTest(isAsync, testFunction, testArguments) {
     // Avoid eval() if at all possible, since it will not work on pages
     // that have enabled content-security-policy.
     var testBody = this[testFunction];    // global object -- not a method.
     var testName = testFunction;
+
+    // Depending on how we were called, |this| might not resolve to the global
+    // context.
+    if (testName == 'RUN_TEST_F' && testBody === undefined)
+      testBody = RUN_TEST_F;
+
     if (typeof testBody === "undefined") {
       testBody = eval(testFunction);
       testName = testBody.toString();
     }
     if (testBody != RUN_TEST_F) {
       console.log('Running test ' + testName);
     }
 
     // Async allow expect errors, but not assert errors.
     var result = runTestFunction(testFunction, testBody, testArguments,
@@ skipping 661 matching lines @@
   exports.TEST = TEST;
   exports.TEST_F = TEST_F;
   exports.RUNTIME_TEST_F = TEST_F;
   exports.GEN = GEN;
   exports.GEN_INCLUDE = GEN_INCLUDE;
   exports.WhenTestDone = WhenTestDone;
 
   // Import the Mock4JS helpers.
   Mock4JS.addMockSupport(exports);
 })(this);