Implement the BadHTTPSFallback Integration Test with ChromeDriver

tools/chrome_proxy/webdriver/bypass.py

Index: tools/chrome_proxy/webdriver/bypass.py
diff --git a/tools/chrome_proxy/webdriver/bypass.py b/tools/chrome_proxy/webdriver/bypass.py
index 2b3259fe52f1590fb859e5c3e969bce54249b5d4..fa2137e086386f96811c7c9454bd85e0fbc95359 100644
--- a/tools/chrome_proxy/webdriver/bypass.py
+++ b/tools/chrome_proxy/webdriver/bypass.py
@@ -172,6 +172,24 @@ class Bypass(IntegrationTest):
       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()