au_test_harness/cros_au_test_harness_unittest.py

#!/usr/bin/env python2
# -*- coding: utf-8 -*-
# Copyright 2015 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.

"""Tests module containing unittests for cros_au_test_harness.py.

Instead of calling to functions/methods in cros_au_test_harness, tests defined
here use its binary version, to mimic the behavior of ctest.
"""

from __future__ import print_function

import os
import sys
import unittest

import constants
sys.path.append(constants.SOURCE_ROOT)

from chromite.lib import cros_build_lib


class CrosAuTestHarnessTest(unittest.TestCase):
  """Testing the GCE related funcionalities in cros_au_test_harness.py"""

  INVALID_TYPE_ERROR = 'error: argument --type: invalid choice'
  INVALID_IMAGE_PATH = 'Testing requires a valid target image.'

  def testCheckOptionsDisallowsUndefinedType(self):
    """Verifies that CheckOptions complains about invalid type."""
    cmd = [os.path.join(constants.CROSTESTUTILS_DIR, 'au_test_harness',
                        'cros_au_test_harness.py'),
           '--type=aws'
          ]
    with self.assertRaises(cros_build_lib.RunCommandError) as cm:
      cros_build_lib.RunCommand(cmd)

    self.assertIn(self.INVALID_TYPE_ERROR, cm.exception.result.error)

  def testCheckOptionsRecognizesGceType(self):
    """Verifies that 'gce' is an allowed type."""
    cmd = [os.path.join(constants.CROSTESTUTILS_DIR, 'au_test_harness',
                        'cros_au_test_harness.py'),
           '--type=gce'
          ]
    # We don't have all required flags passed in so still expect an exception,
    # but it won't be complaining about invalid type.
    with self.assertRaises(cros_build_lib.RunCommandError) as cm:
      cros_build_lib.RunCommand(cmd)

    self.assertNotIn(self.INVALID_TYPE_ERROR, cm.exception.result.error)


if __name__ == '__main__':
  unittest.main()