New pyauto automation hook to get browser process information.

chrome/test/pyautolib/pyauto.py

 #!/usr/bin/python
 
 # Copyright (c) 2011 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.
 
 """PyAuto: Python Interface to Chromium's Automation Proxy.
 
 PyAuto uses swig to expose Automation Proxy interfaces to Python.
 For complete documentation on the functionality available,
@@ skipping 15 matching lines @@
 """
 
 import cStringIO
 import functools
 import hashlib
 import inspect
 import logging
 import optparse
 import os
 import pickle
+import pprint
 import shutil
 import signal
 import socket
 import stat
 import string
 import subprocess
 import sys
 import tempfile
 import time
 import types
@@ skipping 82 matching lines @@
       homepage: the home page. Defaults to "about:blank"
     """
     # Fetch provided keyword args, or fill in defaults.
     clear_profile = kwargs.get('clear_profile', True)
     homepage = kwargs.get('homepage', 'about:blank')
 
     pyautolib.PyUITestBase.__init__(self, clear_profile, homepage)
     self.Initialize(pyautolib.FilePath(self.BrowserPath()))
     unittest.TestCase.__init__(self, methodName)
 
+    # Give all pyauto tests access to a PrettyPrinter object, and convenience
+    # calls to its |pprint| and |pformat| methods.
+    self.pretty_printer = pprint.PrettyPrinter(indent=2)

[Nirnimesh, 2011/09/22 19:35:26]

I meant you should define this in pyauto.py
I realize I'm going out of scope of this CL, so feel free to do this in a
separate Cl

[Nirnimesh, 2011/09/22 19:36:48]

ok. I'm obviously high. Ignore my previous comment

[dennis_jeffrey, 2011/09/22 19:54:03]

Done.

[dennis_jeffrey, 2011/09/22 19:54:03]

If you've realized you're high, you're not high enough.  Or else you are too
high.

+    self.pprint = self.pretty_printer.pprint

[Nirnimesh, 2011/09/22 19:36:48]

Why not just self.pprint = pprint.pprint?

[dennis_jeffrey, 2011/09/22 19:54:03]

Cool!  I didn't realize I could do this directly without first creating a
PrettyPrinter object.

+    self.pformat = self.pretty_printer.pformat

[Nirnimesh, 2011/09/22 19:35:26]

This is unused

[dennis_jeffrey, 2011/09/22 19:54:03]

I use it in process_count.py in the current CL.

+
     # Set up remote proxies, if they were requested.
     self.remotes = []
     self.remote = None
     global _REMOTE_PROXY
     if _REMOTE_PROXY:
       self.remotes = _REMOTE_PROXY
       self.remote = _REMOTE_PROXY[0]
 
   def __del__(self):
     pyautolib.PyUITestBase.__del__(self)
@@ skipping 1226 matching lines @@
                         u'y': 44}]}
 
     Raises:
       pyauto_errors.JSONInterfaceError if the automation call returns an error.
     """
     cmd_dict = {  # Prepare command for the json interface
       'command': 'GetBrowserInfo',
     }
     return self._GetResultFromJSONRequest(cmd_dict, windex=-1)
 
+  def GetProcessInfo(self):
+    """Returns information about browser-related processes that currently exist.
+
+    This will also return information about other currently-running browsers
+    besides just Chrome.
+
+    Returns:
+      A dictionary containing browser-related process information as identified
+      by class MemoryDetails in src/chrome/browser/memory_details.h.  The
+      dictionary contains a single key 'browsers', mapped to a list of
+      dictionaries containing information about each browser process name.
+      Each of those dictionaries contains a key 'processes', mapped to a list
+      of dictionaries containing the specific information for each process
+      with the given process name.
+
+      The memory values given in |committed_mem| and |working_set_mem| are in
+      KBytes.
+
+      Sample:
+      { 'browsers': [ { 'name': 'Chromium',
+                        'process_name': 'chrome',
+                        'processes': [ { 'child_process_type': 'Browser',
+                                         'committed_mem': { 'image': 0,
+                                                            'mapped': 0,
+                                                            'priv': 0},
+                                         'is_diagnostics': False,
+                                         'num_processes': 1,
+                                         'pid': 7770,
+                                         'product_name': '',
+                                         'renderer_type': 'Unknown',
+                                         'titles': [],
+                                         'version': '',
+                                         'working_set_mem': { 'priv': 43672,
+                                                              'shareable': 0,
+                                                              'shared': 59251}},
+                                       { 'child_process_type': 'Tab',
+                                         'committed_mem': { 'image': 0,
+                                                            'mapped': 0,
+                                                            'priv': 0},
+                                         'is_diagnostics': False,
+                                         'num_processes': 1,
+                                         'pid': 7791,
+                                         'product_name': '',
+                                         'renderer_type': 'Tab',
+                                         'titles': ['about:blank'],
+                                         'version': '',
+                                         'working_set_mem': { 'priv': 16768,
+                                                              'shareable': 0,
+                                                              'shared': 26256}},
+                                       ...<more processes>...]}]}
+
+    Raises:
+      pyauto_errors.JSONInterfaceError if the automation call returns an error.
+    """
+    cmd_dict = {  # Prepare command for the json interface.
+      'command': 'GetProcessInfo',
+    }
+    return self._GetResultFromJSONRequest(cmd_dict, windex=-1)
+
   def GetNavigationInfo(self, tab_index=0, windex=0):
     """Get info about the navigation state of a given tab.
 
     Args:
       tab_index: The tab index, default is 0.
       window_index: The window index, default is 0.
 
     Returns:
       a dictionary.
       Sample:
@@ skipping 3081 matching lines @@
     successful = result.wasSuccessful()
     if not successful:
       pyauto_tests_file = os.path.join(self.TestsDir(), self._tests_filename)
       print >>sys.stderr, 'Tests can be disabled by editing %s. ' \
                           'Ref: %s' % (pyauto_tests_file, _PYAUTO_DOC_URL)
     sys.exit(not successful)
 
 
 if __name__ == '__main__':
   Main()