Adding another control test for Chrome Endure that uses WebDriver.

chrome/test/functional/perf_endure.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.
 
 """Performance tests for Chrome Endure (long-running perf tests on Chrome).
 
 This module accepts the following environment variable inputs:
   TEST_LENGTH: The number of seconds in which to run each test.
   PERF_STATS_INTERVAL: The number of seconds to wait in-between each sampling
@@ skipping 270 matching lines @@
         remaining_time = self._test_length_sec - (
                              time.time() - self._test_start_time)
         logging.info('Chrome interaction #%d. Time remaining in test: %d sec.' %
                      (iteration_num, remaining_time))
 
       time.sleep(5)
 
     self._GetPerformanceStats(self._webapp_name, test_description,
                               self._tab_title_substring)
 
+  def testControlAttachDetachDOMTreeWebDriver(self):

[frankf1, 2012/03/10 02:57:17]

There are a lot of duplication between this and previous function. Please factor
this out.

[dennis_jeffrey, 2012/03/12 18:48:07]

Good point.  Done.  Also added a TODO to make the same change for the other
Chrome Endure tests.

+    """Use WebDriver to attach and detach a DOM tree from a basic document."""
+    test_description = 'AttachDetachDOMTreeWebDriver'
+
+    url = self.GetHttpURLForDataPath('chrome_endure',
+                                     'endurance_control_webdriver.html')
+    self.NavigateToURL(url)
+    loaded_tab_title = self.GetActiveTabTitle()
+    self.assertTrue(self._tab_title_substring in loaded_tab_title,
+                    msg='Loaded tab title does not contain "%s": "%s"' %
+                        (self._tab_title_substring, loaded_tab_title))
+
+    driver = self.NewWebDriver()
+    wait = WebDriverWait(driver, timeout=60)
+
+    # Interact with the control test webpage for the duration of the test.
+    # Here, we repeat the following sequence of interactions: click the
+    # "attach" button to attach a large DOM tree (with event listeners) to the
+    # document, wait half a second, click "detach" to detach the DOM tree from
+    # the document, wait half a second.
+    self._test_start_time = time.time()
+    last_perf_stats_time = time.time()
+    self._GetPerformanceStats(self._webapp_name, test_description,
+                              self._tab_title_substring)
+    iteration_num = 0
+    while time.time() - self._test_start_time < self._test_length_sec:
+      iteration_num += 1
+
+      if time.time() - last_perf_stats_time >= self._get_perf_stats_interval:
+        last_perf_stats_time = time.time()
+        self._GetPerformanceStats(self._webapp_name, test_description,
+                                  self._tab_title_substring)
+
+      if iteration_num % 10 == 0:
+        remaining_time = self._test_length_sec - (
+                             time.time() - self._test_start_time)

[frankf1, 2012/03/10 02:57:17]

alignment issue

[dennis_jeffrey, 2012/03/12 18:48:07]

I indented this line 4 spaces underneath the right-hand side of the previous
line, since it's a continuation of that expression.  Which indentation do you
recommend?  Would you prefer that I indent with respect to the start of the
previous line instead?  Or line it up underneath the start of the right-hand
side in the previous line?

+        logging.info('Chrome interaction #%d. Time remaining in test: %d sec.' %
+                     (iteration_num, remaining_time))
+
+      self._ClickElementByXpath(driver, wait, 'id("attach")')
+      time.sleep(0.5)
+      self._ClickElementByXpath(driver, wait, 'id("detach")')
+      time.sleep(0.5)
+
+    self._GetPerformanceStats(self._webapp_name, test_description,
+                              self._tab_title_substring)
+
 
 class ChromeEndureGmailTest(ChromeEndureBaseTest):
   """Long-running performance tests for Chrome using Gmail."""
 
   _webapp_name = 'Gmail'
   _tab_title_substring = 'Gmail'
 
   def setUp(self):
     ChromeEndureBaseTest.setUp(self)
 
@@ skipping 498 matching lines @@
           driver, wait, '//div[text()="Acquaintances"]'):
         num_errors += 1
       time.sleep(1)
 
     self._GetPerformanceStats(self._webapp_name, test_description,
                               self._tab_title_substring)
 
 
 if __name__ == '__main__':
   pyauto_functional.Main()