Add a test for checking objects reported by DevTools memory instrumentation not allocated by tcmall…

chrome/test/functional/devtools_test_base.py

Index: chrome/test/functional/devtools_test_base.py
diff --git a/chrome/test/functional/devtools_native_memory_snapshot.py b/chrome/test/functional/devtools_test_base.py
similarity index 63%
copy from chrome/test/functional/devtools_native_memory_snapshot.py
copy to chrome/test/functional/devtools_test_base.py
index d0d4ad75a6d2d5a11524a3dcaf9bb6fad78789e9..bf938d808148509f6fdb17d9df461ff932bb9d60 100755
--- a/chrome/test/functional/devtools_native_memory_snapshot.py
+++ b/chrome/test/functional/devtools_test_base.py
@@ -5,6 +5,7 @@
 
 import logging
 import os
+import tempfile
 from urlparse import urlparse
 
 import pyauto_functional  # Must be imported before pyauto
@@ -14,14 +15,11 @@ import remote_inspector_client
 import webpagereplay
 
 
-class DevToolsNativeMemorySnapshotTest(pyauto.PyUITest):
-  """Test for tracking unknown share in the DevTools native memory snapshots.
+class DevToolsTestBase(pyauto.PyUITest):
+  """Base class for DevTools tests that use replay server.
 
-  This test navigates the browser to a test page, then takes native memory
-  snapshot over remote debugging protocol and prints render process private
-  memory size and unknown size extracted from the snapshot. It is used to
-  track size of the memory that is not counted by DevTools memory
-  instrumentation.
+  This class allows to navigate the browser to a test page and take native
+  memory snapshot over remote debugging protocol.
 
   The test uses Web Page Replay server as a proxy that allows to replay
   the same state of the test pages and avoid heavy network traffic on the
@@ -58,34 +56,20 @@ class DevToolsNativeMemorySnapshotTest(pyauto.PyUITest):
     logging.info('Terminating connection to remote inspector...')
     self._remote_inspector_client.Stop()
     logging.info('Connection to remote inspector terminated.')
-    super(DevToolsNativeMemorySnapshotTest, self).tearDown()
+    super(DevToolsTestBase, self).tearDown()
 
-  def testNytimes(self):
-    self._RunTestWithUrl('http://www.nytimes.com/')
-
-  def testCnn(self):
-    self._RunTestWithUrl('http://www.cnn.com/')
-
-  def testGoogle(self):
-    self._RunTestWithUrl('http://www.google.com/')
-
-  def _RunTestWithUrl(self, url):
-    """Dumps native memory snapshot data for given page."""
+  def RunTestWithUrl(self, url):
+    """Navigates browser to given URL and takes native memory snapshot."""
     replay_options = None
     hostname = urlparse(url).hostname
     archive_path = os.path.join(self.DATA_PATH, hostname + '.wpr')
     with webpagereplay.ReplayServer(archive_path, replay_options):
       self.NavigateToURL(url)
     snapshot = self._remote_inspector_client.GetProcessMemoryDistribution()
-    total = snapshot.GetProcessPrivateMemorySize()
-    unknown = snapshot.GetUnknownSize()
-    logging.info('Got data for url: %s, total size = %d, unknown size = %d '%
-        (url, total, unknown))
-
-    graph_name = 'DevTools Native Snapshot - ' + hostname
-    pyauto_utils.PrintPerfResult(graph_name, 'Total', total, 'bytes')
-    pyauto_utils.PrintPerfResult(graph_name, 'Unknown', unknown, 'bytes')
+    logging.info('Got snapshot for url: %s' % url)
+    self.PrintTestResult(hostname, snapshot)
 
+  def PrintTestResult(self, hostname, snapshot):
+    """This method is supposed to be overriden in subclasses."""
+    pass
 
-if __name__ == '__main__':
-  pyauto_functional.Main()