Adding two smoke tests for DataSaver:

tools/chrome_proxy/webdriver/smoke.py

Index: tools/chrome_proxy/webdriver/smoke.py
diff --git a/tools/chrome_proxy/webdriver/smoke.py b/tools/chrome_proxy/webdriver/smoke.py
index 49f0130659f4537a9c4631b4243fea679cb79b06..04f7a0483dcb69db1157d089172a132203fc3966 100644
--- a/tools/chrome_proxy/webdriver/smoke.py
+++ b/tools/chrome_proxy/webdriver/smoke.py
@@ -93,5 +93,25 @@ class Smoke(IntegrationTest):
         self.assertHasChromeProxyViaHeader(response)
         self.assertEqual(200, response.status)
 
+  # Ensure the block is working
+  def testCheckBlockIsWorking(self):
+    with TestDriver() as t:
+      t.AddChromeArg('--enable-spdy-proxy-auth')
+      t.LoadURL('http://check.googlezip.net/block')
+      responses = t.GetHTTPResponses()
+      self.assertNotEqual(0, len(responses))
+      for response in responses:
+        self.assertNotHasChromeProxyViaHeader(response)
+
+  # Ensure image/css/javascript is compressed
+  def testCheckImageCssJavascriptIsCompressed(self):
+    with TestDriver() as t:
+      t.AddChromeArg('--enable-spdy-proxy-auth')
+      t.LoadURL('http://check.googlezip.net/static')

[bustamante, 2017/03/20 21:32:28]

Add a comment here that http://check.googlezip.net/static is a test page that
has image/css/javascript resources.

+      responses = t.GetHTTPResponses()
+      self.assertNotEqual(0, len(responses))
+      for response in responses:
+        self.assertHasChromeProxyViaHeader(response)        
+
 if __name__ == '__main__':
   IntegrationTest.RunAllTests()