[chromedriver] Implement SwitchToFrame command.

chrome/test/chromedriver/run_py_tests.py

 #!/usr/bin/env python
 # 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.
 
 """End to end tests for ChromeDriver."""
 
 import ctypes
 import optparse
 import os
@@ skipping 34 matching lines @@
     script = 'return arguments[0].innerHTML + arguments[1].innerHTML';
     self.assertEquals('bc', driver.ExecuteScript(script, stuff[0], stuff[1]))
     driver.Quit()
 
   def testEvaluateInvalidScript(self):
     driver = chromedriver.ChromeDriver(_CHROMEDRIVER_LIB, _CHROME_BINARY)
     self.assertRaises(chromedriver.ChromeDriverException,
                       driver.ExecuteScript, '{{{')
     driver.Quit()
 
+  def testSwitchToFrame(self):
+    driver = chromedriver.ChromeDriver(_CHROMEDRIVER_LIB, _CHROME_BINARY)
+    driver.ExecuteScript(
+        'var frame = document.createElement("iframe");'
+        'frame.id="id";'
+        'frame.name="name";'
+        'document.body.appendChild(frame);')
+    self.assertTrue(driver.ExecuteScript('return window.top == window'))
+    driver.SwitchToFrame('id')
+    self.assertTrue(driver.ExecuteScript('return window.top != window'))
+    driver.SwitchToMainFrame()
+    self.assertTrue(driver.ExecuteScript('return window.top == window'))
+    driver.SwitchToFrame('name')
+    self.assertTrue(driver.ExecuteScript('return window.top != window'))
+    driver.SwitchToMainFrame()
+    self.assertTrue(driver.ExecuteScript('return window.top == window'))
+    driver.SwitchToFrameByIndex(0)
+    self.assertTrue(driver.ExecuteScript('return window.top != window'))
+    driver.Quit()
+
 
 if __name__ == '__main__':
   parser = optparse.OptionParser()
   parser.add_option(
       '', '--chromedriver', type='string', default=None,
       help='Path to a build of the chromedriver library(REQUIRED!)')
   parser.add_option(
       '', '--chrome', type='string', default=None,
       help='Path to a build of the chrome binary')
   parser.add_option(
@@ skipping 12 matching lines @@
   if options.chrome is not None:
     _CHROME_BINARY = os.path.abspath(options.chrome)
   else:
     _CHROME_BINARY = None
 
   all_tests_suite = unittest.defaultTestLoader.loadTestsFromModule(
       sys.modules[__name__])
   tests = unittest_util.FilterTestSuite(all_tests_suite, options.filter)
   result = unittest.TextTestRunner().run(tests)
   sys.exit(len(result.failures) + len(result.errors))