Implement the BadHTTPSFallback Integration Test with ChromeDriver

tools/chrome_proxy/webdriver/bypass.py

 # Copyright 2017 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.
 
 import common
 from common import TestDriver
 from common import IntegrationTest
 
 
 class Bypass(IntegrationTest):
@@ skipping 154 matching lines @@
     # through the proxy without being bypassed.
     with TestDriver() as test_driver:
       test_driver.AddChromeArg('--enable-spdy-proxy-auth')
 
       test_driver.LoadURL('http://check.googlezip.net/exp/')
       responses = test_driver.GetHTTPResponses()
       self.assertNotEqual(0, len(responses))
       for response in responses:
         self.assertHasChromeProxyViaHeader(response)
 
+  # DataSaver uses a https proxy by default, if that fails it will fall back to 
+  # a http proxy
+  def testBadHTTPSFallback(self):
+    with TestDriver() as test_driver:
+      test_driver.AddChromeArg('--enable-spdy-proxy-auth')
+      # set the primary (https) proxy to a bad one.  

[bustamante, 2017/04/11 22:04:10]

Nit - the "S" in set should be capitalized.

+      # That will force DataSaver to the http proxy for normal page requests.
+      test_driver.AddChromeArg('--spdy-proxy-auth-origin='
+                               'https://nonexistent.googlezip.net')          
+      test_driver.AddChromeArg('--data-reduction-proxy-http-proxies='                               
+                               'http://compress.googlezip.net')          
+      
+      test_driver.LoadURL('http://check.googlezip.net/test.html')
+      responses = test_driver.GetHTTPResponses()
+      self.assertNotEqual(0, len(responses))
+      for response in responses:
+          self.assertHasChromeProxyViaHeader(response)
+          self.assertEqual(u'http/1.1', response.protocol)

[bustamante, 2017/04/11 22:04:10]

Port 80 may be a better check as it could also go over http/1.2, http/2, or
quic.

 
 if __name__ == '__main__':
   IntegrationTest.RunAllTests()