#!/usr/bin/env python
# Copyright 2015 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.

"""A test runner for gtest application tests."""

import argparse
import ast
import logging
import os
import sys

_logging = logging.getLogger()

import gtest


def main():
  logging.basicConfig()
  # Uncomment to debug:
  #_logging.setLevel(logging.DEBUG)

  parser = argparse.ArgumentParser(description='A test runner for gtest '
                                   'application tests.')

  parser.add_argument('apptest_list_file', type=file,
                      help='A file listing apptests to run.')
  parser.add_argument('build_dir', type=str,
                      help='The build output directory.')
  args = parser.parse_args()

  apptest_list = ast.literal_eval(args.apptest_list_file.read())
  _logging.debug("Test list: %s" % apptest_list)

  gtest.set_color()
  mojo_shell_path = os.path.join(args.build_dir, "mojo_shell")

  exit_code = 0
  for apptest_dict in apptest_list:
    if apptest_dict.get("disabled"):
      continue

    apptest = apptest_dict["test"]
    apptest_args = apptest_dict.get("test-args", [])
    shell_args = apptest_dict.get("shell-args", [])

    print "Running " + apptest + "...",
    sys.stdout.flush()

    # List the apptest fixtures so they can be run independently for isolation.
    # TODO(msw): Run some apptests without fixture isolation?
    fixtures = gtest.get_fixtures(mojo_shell_path, apptest)

    if not fixtures:
      print "Failed with no tests found."
      exit_code = 1
      continue

    apptest_result = "Succeeded"
    for fixture in fixtures:
      args_for_apptest = " ".join(["--args-for=" + apptest,
                                   "--gtest_filter=" + fixture] + apptest_args)

      success = RunApptestInShell(mojo_shell_path, apptest,
                                  shell_args + [args_for_apptest])

      if not success:
        apptest_result = "Failed test(s) in %r" % apptest_dict
        exit_code = 1

    print apptest_result

  return exit_code


def RunApptestInShell(mojo_shell_path, apptest, shell_args):
  return gtest.run_test([mojo_shell_path, apptest] + shell_args)


if __name__ == '__main__':
  sys.exit(main())