Add more control over sync for Chromium testshell.

build/android/pylib/host_driven/TestServer.py

Index: build/android/pylib/host_driven/TestServer.py
diff --git a/build/android/pylib/host_driven/TestServer.py b/build/android/pylib/host_driven/TestServer.py
new file mode 100755
index 0000000000000000000000000000000000000000..310f59e572ce4761255924b0cea1929cfd8ea77f
--- /dev/null
+++ b/build/android/pylib/host_driven/TestServer.py
@@ -0,0 +1,99 @@
+#!/usr/bin/python
+# Copyright 2013 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 os.path
+import subprocess
+
+from pylib import constants
+from pylib import flag_changer
+
+_HOST = '127.0.0.1'
+
+_SYNC_TEST_SERVER_PATH = 'sync/tools/testserver/sync_testserver.py'
+
+# NOTE: when adding or modifying these lines, omit any leading slashes!
+# Otherwise os.path.join() will (correctly) treat them as absolute paths
+# instead of relative paths, and will do nothing.
+PYTHONPATH_DIRS = [
+    'net/tools/testserver/',
+    'third_party/',
+    'third_party/pyftpdlib/src/',
+    'third_party/pywebsocket/src',
+    'third_party/tlslite/',
+]
+
+# Python files in these directories are generated as part of the build.
+# These dirs are located in out/(Debug|Release) directory.
+# The correct path is determined based on the build type. E.g. out/Debug for
+# debug builds and out/Release for release builds.
+GENERATED_PYTHONPATH_DIRS = [
+    'pyproto/sync/protocol/',
+    'pyproto/'
+]
+
+
+def setUpTestSyncServer(adb, shard_index, command_line_file):
+  return __setUpTestServer(adb, shard_index,
+                           constants.TEST_SYNC_SERVER_PORT,
+                           command_line_file,
+                           '--sync-url=http://%s:%d/chromiumsync',
+                           [],
+                           _SYNC_TEST_SERVER_PATH)
+
+def setUpTestSearchByImageServer(adb, shard_index):
+  return __setUpTestServer(
+      adb, shard_index,
+      constants.TEST_SEARCH_BY_IMAGE_SERVER_PORT,
+      '--host-resolver-rules="MAP * %s:%d, EXCLUDE localhost"',
+      [],
+      _NET_TEST_SERVER_PATH)
+
+def __setUpTestServer(adb, shard_index, test_server_port, command_line_file,
+                      chrome_flags_to_append, test_server_flags,
+                      test_server_path):
+  """Sets up a server.
+
+  Args:
+    adb: AndroidCommands object.
+    shard_index: Index of the current shard.
+    test_server_port: port to run the test server on.
+    chrome_flags_to_append: additional flags to post to Chrome.
+    test_server_flags: flags to use when starting the test server.
+    test_server_path: the path (relative to the root Chrome dir) of the server
+
+  Returns:
+    A tuple where the first element is the command line flags used by the
+    tests, and the second is the mock server that was setup.
+  """
+  port = test_server_port + shard_index
+  flags = flag_changer.FlagChanger(adb, command_line_file)
+  flags.AddFlags([chrome_flags_to_append % (_HOST, port)])
+
+  chrome_dir = os.getcwd()
+
+  # Make dirs into a list of absolute paths.
+  abs_dirs = [os.path.join(chrome_dir, d) for d in PYTHONPATH_DIRS]
+  # Add the generated python files to the path
+  abs_dirs.extend([os.path.join(chrome_dir, 'out', constants.GetBuildType(), d)
+                   for d in GENERATED_PYTHONPATH_DIRS])
+  # Note the colon after $PYTHONPATH. This appends the list of PYTHONPATH_DIRS
+  # to the existing PYTHONPATH.
+  python_path = '$PYTHONPATH:' + ':'.join(abs_dirs)
+
+  # NOTE: A separate python process is used to simplify getting the right system
+  # path for finding includes.
+  server_flags = ['python', os.path.join(chrome_dir, test_server_path),
+                  '--log-to-console', ('--host=%s' % _HOST),
+                  ('--port=%d' % port)]
+  server_flags.extend(test_server_flags)
+  test_server = subprocess.Popen(server_flags, env={'PYTHONPATH': python_path})
+  return (port, flags, test_server)
+
+
+def tearDown(setup_params):
+  flags, test_server = setup_params
+  flags.Restore()
+  test_server.kill()