Create an apptesting framework for dart.

mojo/tools/mopy/gtest.py

Index: mojo/tools/mopy/gtest.py
diff --git a/mojo/tools/mopy/gtest.py b/mojo/tools/mopy/gtest.py
index 4663c729a14315134003684bc7295a4663a6fe18..ef2201e682599f9ce88713f12c1dcd2314d017f8 100644
--- a/mojo/tools/mopy/gtest.py
+++ b/mojo/tools/mopy/gtest.py
@@ -11,6 +11,7 @@ import sys
 _logging = logging.getLogger()
 
 from mopy import android

[msw, 2015/03/04 21:04:32]

nit: no longer needed

+from mopy import test_util
 from mopy.config import Config
 from mopy.paths import Paths

[msw, 2015/03/04 21:04:32]

nit: no longer needed

 from mopy.print_process_error import print_process_error
@@ -35,7 +36,8 @@ def run_test(config, shell_args, apps_and_args=None, run_launcher=False):
     run_launcher: |True| is mojo_launcher must be used instead of mojo_shell.
   """
   apps_and_args = apps_and_args or {}
-  output = _try_run_test(config, shell_args, apps_and_args, run_launcher)
+  output = test_util.try_run_test(config, shell_args, apps_and_args,
+                                  run_launcher)
   # Fail on output with gtest's "[  FAILED  ]" or a lack of "[  PASSED  ]".
   # The latter condition ensures failure on broken command lines or output.
   # Check output instead of exit codes because mojo_shell always exits with 0.
@@ -43,7 +45,8 @@ def run_test(config, shell_args, apps_and_args=None, run_launcher=False):
       (output.find("[  FAILED  ]") != -1 or output.find("[  PASSED  ]") == -1)):
     print "Failed test:"
     print_process_error(
-        _build_command_line(config, shell_args, apps_and_args, run_launcher),
+        test_util.build_command_line(config, shell_args, apps_and_args,
+                                     run_launcher),
         output)
     return False
   _logging.debug("Succeeded with output:\n%s" % output)
@@ -64,79 +67,16 @@ def get_fixtures(config, shell_args, apptest):
   """
   try:
     apps_and_args = {apptest: ["--gtest_list_tests"]}
-    list_output = _run_test(config, shell_args, apps_and_args)
+    list_output = test_util.run_test(config, shell_args, apps_and_args)
     _logging.debug("Tests listed:\n%s" % list_output)
     return _gtest_list_tests(list_output)
   except Exception as e:
     print "Failed to get test fixtures:"
     print_process_error(
-        _build_command_line(config, shell_args, apps_and_args), e)
+        test_util.build_command_line(config, shell_args, apps_and_args), e)
   return []
 
 
-def build_shell_arguments(shell_args, apps_and_args=None):
-  """Build the list of arguments for the shell. |shell_args| are the base
-  arguments, |apps_and_args| is a dictionary that associates each application to
-  its specific arguments|. Each app included will be run by the shell.
-  """
-  result = shell_args[:]
-  if apps_and_args:
-    for (application, args) in apps_and_args.items():
-      result += ["--args-for=%s %s" % (application, " ".join(args))]
-    result += apps_and_args.keys()
-  return result
-
-
-def _get_shell_executable(config, run_launcher):
-  paths = Paths(config=config)
-  if config.target_os == Config.OS_ANDROID:
-    return os.path.join(paths.src_root, "mojo", "tools",
-                        "android_mojo_shell.py")
-  elif run_launcher:
-    return paths.mojo_launcher_path
-  else:
-    return paths.mojo_shell_path
-
-
-def _build_command_line(config, shell_args, apps_and_args, run_launcher=False):
-  executable = _get_shell_executable(config, run_launcher)
-  return "%s %s" % (executable, " ".join(["%r" % x for x in
-                                          build_shell_arguments(
-                                              shell_args, apps_and_args)]))
-
-
-def _run_test_android(shell_args, apps_and_args):
-  """Run the given test on the single/default android device."""
-  (r, w) = os.pipe()
-  with os.fdopen(r, "r") as rf:
-    with os.fdopen(w, "w") as wf:
-      arguments = build_shell_arguments(shell_args, apps_and_args)
-      android.StartShell(arguments, wf, wf.close)
-      return rf.read()
-
-
-def _run_test(config, shell_args, apps_and_args, run_launcher=False):
-  """Run the given test, using mojo_launcher if |run_launcher| is True."""
-  if (config.target_os == Config.OS_ANDROID):
-    return _run_test_android(shell_args, apps_and_args)
-  else:
-    executable = _get_shell_executable(config, run_launcher)
-    command = ([executable] + build_shell_arguments(shell_args, apps_and_args))
-    return subprocess.check_output(command, stderr=subprocess.STDOUT)
-
-
-def _try_run_test(config, shell_args, apps_and_args, run_launcher):
-  """Returns the output of a command line or an empty string on error."""
-  command_line = _build_command_line(config, shell_args, apps_and_args,
-                                     run_launcher=run_launcher)
-  _logging.debug("Running command line: %s" % command_line)
-  try:
-    return _run_test(config, shell_args, apps_and_args, run_launcher)
-  except Exception as e:
-    print_process_error(command_line, e)
-  return None
-
-
 def _gtest_list_tests(gtest_list_tests_output):
   """Returns a list of strings formatted as TestSuite.TestFixture from the
   output of running --gtest_list_tests on a GTEST application."""