Use named automation interface to control the primary chrome to run pyauto-based chrome tests on ChromeOS.

This CL includes:
  - enable_testing.py -- sends dbus call to session_manager to enable testing interface
  - pyauto.py -- integration of named automation interface with PyAuto
  - desktopui_PyAutoFunctionalTests.py -- setup to use named automation interface.  Uses a suid-root binary (as discussed with cmasone) to dbus mesg to session_manager
  - PYAUTO_TESTS -- a new suite called "PRIMARY_CHROME" which currently consists of a basic hello world test that controls the primary chrome
  - chromeos_basic.py -- a basic test

All plumbing necessary to integrate the named automation interface with autotest and pyauto is included.
It's designed such that it's easy to work directly on a chromeos device while adding/editing a pyauto test, without having to run via autotest every time.  Also, the existing pyauto tests (about 200 of them) will begin controlling the primary chrome.

Can be run with run_remote_tests.sh as:
  $ ./run_remote_tests.sh --remote <IP> desktopui_PyAutoFunctionalTests

BUG=
TEST=

Review URL: http://codereview.chromium.org/6410134

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@75797 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 49 insertions, 6 deletions

diff --git a/chrome/test/chromeos/autotest/files/client/site_tests/desktopui_PyAutoFunctionalTests/desktopui_PyAutoFunctionalTests.py b/chrome/test/chromeos/autotest/files/client/site_tests/desktopui_PyAutoFunctionalTests/desktopui_PyAutoFunctionalTests.py
index 8c495e0..d5f4ad8 100644
--- a/chrome/test/chromeos/autotest/files/client/site_tests/desktopui_PyAutoFunctionalTests/desktopui_PyAutoFunctionalTests.py
+++ b/chrome/test/chromeos/autotest/files/client/site_tests/desktopui_PyAutoFunctionalTests/desktopui_PyAutoFunctionalTests.py
@@ -3,15 +3,58 @@
 # found in the LICENSE file.
 
 import os
-from autotest_lib.client.cros import chrome_test
+import shutil
+import subprocess
+
+from autotest_lib.client.bin import utils
+from autotest_lib.client.cros import constants, chrome_test, cros_ui
+
 
 class desktopui_PyAutoFunctionalTests(chrome_test.ChromeTestBase):
-    """Wrapper for running Chrome's PyAuto-based functional tests."""
+    """Wrapper for running Chrome's PyAuto-based functional tests.
+
+    Performs all setup and fires of PRIMARY_CHROME suite.
+    """
     version = 1
 
+    def initialize(self):
+        chrome_test.ChromeTestBase.initialize(self)
+        assert os.geteuid() == 0, 'Need superuser privileges'
+
+        deps_dir = os.path.join(self.autodir, 'deps')
+        subprocess.check_call(['chown', '-R', 'chronos', self.cr_source_dir])
+
+        # Setup /tmp/disable_chrome_restart
+        if not os.path.exists(constants.DISABLE_BROWSER_RESTART_MAGIC_FILE):
+          open(constants.DISABLE_BROWSER_RESTART_MAGIC_FILE, 'w').close()
+
+        # Setup suid python binary which can enable chrome testing interface
+        suid_python = os.path.join(self.test_binary_dir, 'python')
+        py_path = subprocess.Popen(['which', 'python'],
+                                   stdout=subprocess.PIPE).communicate()[0]
+        py_path = py_path.strip()
+        assert os.path.exists(py_path), 'Could not find python'
+        if os.path.islink(py_path):
+          linkto = os.readlink(py_path)
+          py_path = os.path.join(os.path.dirname(py_path), linkto)
+        shutil.copy(py_path, suid_python)
+        os.chown(suid_python, 0, 0)
+        os.chmod(suid_python, 04755)
+
     def run_once(self):
+        # Enable chrome testing interface and Login
         deps_dir = os.path.join(self.autodir, 'deps')
-        self.test_binary_dir = ''
-        pyauto_script = '%s/chrome_test/test_src/chrome/test/functional/' \
-                        'pyauto_functional.py' % deps_dir
-        self.run_chrome_test(pyauto_script)
+        pyautolib_dir = os.path.join(self.cr_source_dir,
+                                     'chrome', 'test', 'pyautolib')
+        login_cmd = cros_ui.xcommand_as(
+            'python %s chromeos_utils.ChromeosUtils.LoginToDefaultAccount '
+            '-v --no-http-server' %
+                os.path.join(pyautolib_dir, 'chromeos', 'chromeos_utils.py'))
+        utils.system(login_cmd)
+
+        # Run pyauto tests in "PRIMARY_CHROME" suite
+        functional_cmd = cros_ui.xcommand_as(
+            '%s/chrome_test/test_src/chrome/test/functional/' \
+            'pyauto_functional.py --suite=PRIMARY_CHROME ' \
+            '-v --no-http-server' % deps_dir)
+        utils.system(functional_cmd)