AU: Start an UpdateAttempter unit test suite.

SConstruct

 # Copyright (c) 2009 The Chromium OS 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
 
 # Protobuffer compilation
 def ProtocolBufferEmitter(target, source, env):
   """ Inputs:
           target: list of targets to compile to
@@ skipping 241 matching lines @@
                             payload_signer_unittest.cc
                             postinstall_runner_action_unittest.cc
                             prefs_unittest.cc
                             set_bootable_flag_action_unittest.cc
                             simple_key_value_store_unittest.cc
                             split_file_writer_unittest.cc
                             subprocess_unittest.cc
                             tarjan_unittest.cc
                             test_utils.cc
                             topological_sort_unittest.cc
+                            update_attempter_unittest.cc
                             update_check_scheduler_unittest.cc
                             utils_unittest.cc
                             zip_unittest.cc""")
 unittest_main = ['testrunner.cc']
 
 client_main = ['update_engine_client.cc']
 
 delta_generator_main = ['generate_delta_main.cc']
 
 # Hack to generate header files first. They are generated as a side effect
@@ skipping 24 matching lines @@
                                   delta_generator_main)
 
 http_server_cmd = env.Program('test_http_server', 'test_http_server.cc')
 
 unittest_env = env.Clone()
 unittest_env.Append(LIBS=['gmock', 'gtest'])
 unittest_cmd = unittest_env.Program('update_engine_unittests',
                            unittest_sources + unittest_main)
 Clean(unittest_cmd, Glob('*.gcda') + Glob('*.gcno') + Glob('*.gcov') +
                     Split('html app.info'))