Add pyauto tests and helper files for system-level testing of Web SQL Databases.

chrome/test/pyautolib/pyauto.py

 #!/usr/bin/python
 
 # Copyright (c) 2010 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 1578 matching lines @@
     cmd_dict = {
       'command': 'FindInPage',
       'tab_index' : tab_index,
       'search_string' : search_string,
       'forward' : forward,
       'match_case' : match_case,
       'find_next' : find_next,
     }
     return self._GetResultFromJSONRequest(cmd_dict, windex=windex)
 
+  def CallJavascriptFunc(self, function, args=[], tab_index=0, windex=0):
+    """Executes a script which calls a given javascript function.
+
+    The invoked javascript function must send a result back via the
+    domAutomationController.send function, or this function will never return.
+
+    Defaults to first tab in first window.
+
+    Args:
+      function: name of the function
+      args: list of all the arguments to pass into the called function. These
+            should be able to be converted to a string using the |str| function.
+      tab_index: index of the tab within the given window
+      windex: index of the window
+
+    Returns:
+      a string that was sent back via the domAutomationController.send method
+    """
+    # Convert the given arguments for evaluation in a javascript statement.
+    converted_args = []
+    for arg in args:
+      # If it is a string argument, we need to quote and escape it properly.
+      if type(arg) == type('string') or type(arg) == type(u'unicode'):
+        # We must convert all " in the string to \", so that we don't try
+        # to evaluate invalid javascript like ""arg"".
+        converted_arg = '"' + arg.replace('"', '\\"') + '"'
+      else:
+        # Convert it to a string so that we can use |join| later.
+        converted_arg = str(arg)
+      converted_args += [converted_arg]
+    js = '%s(%s)' % (function, ', '.join(converted_args))
+    logging.debug('Executing javascript: ', js)
+    return self.ExecuteJavascript(js, windex, tab_index)
+
 
 class PyUITestSuite(pyautolib.PyUITestSuiteBase, unittest.TestSuite):
   """Base TestSuite for PyAuto UI tests."""
 
   def __init__(self, args):
     pyautolib.PyUITestSuiteBase.__init__(self, args)
 
     # Figure out path to chromium binaries
     browser_dir = os.path.normpath(os.path.dirname(pyautolib.__file__))
     logging.debug('Loading pyauto libs from %s', browser_dir)
@@ skipping 289 matching lines @@
     if self._options.verbose:
       verbosity = 2
     result = PyAutoTextTestRuner(verbosity=verbosity).run(pyauto_suite)
     del loaded_tests  # Need to destroy test cases before the suite
     del pyauto_suite
     sys.exit(not result.wasSuccessful())
 
 
 if __name__ == '__main__':
   Main()