Add a hook for capturing a user profile photo and saving it to file and local state.

chrome/test/functional/chromeos_prefs.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.
 
+import os
+import time
+
 import pyauto_functional  # Must be imported before pyauto
 import pyauto
 
 
 class ChromeosPrefsTest(pyauto.PyUITest):
   """TestCase for ChromeOS Preferences."""
 
+  # Defined in src/chrome/browser/chromeos/login/user_manager.cc
+  k_logged_in_users = 'LoggedInUsers'
+  k_user_images = 'UserImages'
+
   def testDefaultUserImage(self):
     """Verify changing default user image prefs work."""
 
-    # Defined in src/chrome/browser/chromeos/login/user_manager.cc
-    k_logged_in_users = 'LoggedInUsers'
-    k_user_images = 'UserImages'
     # Defined in src/chrome/browser/chromeos/login/default_user_images.cc
     image1 = u'default:4'
     image2 = u'default:5'
 
     for image in image1, image2:
       logged_in_user = \
-          self.GetLocalStatePrefsInfo().Prefs(k_logged_in_users)[0]
+          self.GetLocalStatePrefsInfo().Prefs(
+              ChromeosPrefsTest.k_logged_in_users)[0]
       user_images = {}
       user_images[logged_in_user] = image
-      self.SetLocalStatePrefs(k_user_images, user_images)
+      self.SetLocalStatePrefs( ChromeosPrefsTest.k_user_images, user_images)
       self.RestartBrowser(clear_profile=False)
-      current_user_images = self.GetLocalStatePrefsInfo().Prefs(k_user_images)
+      current_user_images = self.GetLocalStatePrefsInfo().Prefs(
+          ChromeosPrefsTest.k_user_images)
       current_image = current_user_images.get(logged_in_user)
-      self.assertEqual(image, current_image)
+      self.assertEqual(image, current_image,
+                       msg='Default user image was not set in preferences.')
+
+  def testCaptureUserPhoto(self):
+    """Verify capturing/saving user photo works."""
+
+    logged_in_user = \
+        self.GetLocalStatePrefsInfo().Prefs(
+            ChromeosPrefsTest.k_logged_in_users)[0]
+    # Defined in src/chrome/browser/chromeos/login/user_manager.cc
+    expected_photo_name = logged_in_user + '.png'
+
+    self.CaptureProfilePhoto()
+
+    for i in range(2):
+      current_user_images = self.GetLocalStatePrefsInfo().Prefs(
+          ChromeosPrefsTest.k_user_images)
+      current_image_path = current_user_images.get(logged_in_user)
+      self.assertTrue(expected_photo_name in current_image_path,
+                      msg='Captured user photo was not set in preferences.')
+      self.assertTrue(os.path.isfile(current_image_path),
+          msg='Image file was not saved.') and \
+          self.assertTrue(os.path.getsize(current_image_path) > 1000,
+          msg='Image file may not be valid.' )
+      if not i:
+        self.RestartBrowser(clear_profile=False)
 
 
 if __name__ == '__main__':
   pyauto_functional.Main()
-