Use python's unittest framework.

tools/chrome_proxy/webdriver/common.py

 # Copyright 2016 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 argparse
 import json
 import os
 import re
 import socket
 import shlex
@@ skipping 350 matching lines @@
   @property
   def request_type(self):
     return self._request_type
 
   def ResponseHasViaHeader(self):
     return 'via' in self._response_headers and (self._response_headers['via'] ==
       self._flags.via_header_value)
 
   def WasXHR(self):
     return self.request_type == 'XHR'
-
-class IntegrationTest:
-  """A parent class for all integration tests with utility and assertion
-  methods.
-
-  All methods starting with the word 'test' (ignoring case) will be called with
-  the RunAllTests() method which can be used in place of a main method.
-  """
-  def RunAllTests(self):
-    """Runs all methods starting with the word 'test' (ignoring case) in the
-    class.
-
-    Can be used in place of a main method to run all tests in a class.
-    """
-    methodList = [method for method in dir(self) if callable(getattr(self,
-      method)) and method.lower().startswith('test')]
-    for method in methodList:
-      try:
-        getattr(self, method)()
-      except Exception as e:
-        # Uses the Exception tuple from sys.exec_info().
-        HandleException(method)
-
-  # TODO(robertogden): Add some nice assertion functions.
-
-  def Fail(self, msg):
-    """Called when a test fails an assertion.
-
-    Args:
-      msg: The string message to print to stderr
-    """
-    sys.stderr.write("**************************************\n")
-    sys.stderr.write("**************************************\n")
-    sys.stderr.write("**                                  **\n")
-    sys.stderr.write("**          TEST FAILURE            **\n")
-    sys.stderr.write("**                                  **\n")
-    sys.stderr.write("**************************************\n")
-    sys.stderr.write("**************************************\n")
-    sys.stderr.write(msg, '\n')
-    sys.exit(1)