old_contents: """
  Unit tests for vcs_ library.
  
  In order to run tests we need to prepare our environment first. Tests would be
  run for each engine listed at ``conf.SCM_TESTS`` - keys are aliases from
  ``vcs.backends.BACKENDS``.
  
  For each SCM we run tests for, we need some repository. We would use
  repositories location from system environment variables or test suite defaults
  - see ``conf`` module for more detail. We simply try to check if repository at
  certain location exists, if not we would try to fetch them. At ``test_vcs`` or
  ``test_common`` we run unit tests common for each repository type and for
  example specific mercurial tests are located at ``test_hg`` module.
  
  Oh, and tests are run with ``unittest.collector`` wrapped by ``collector``
  function at ``tests/__init__.py``.
  
  .. _vcs: http://bitbucket.org/marcinkuzminski/vcs
  .. _unittest: http://pypi.python.org/pypi/unittest
  
  """
  from vcs.utils.compat import unittest
  from conf import *
  from utils import VCSTestError, SCMFetcher
  
  # Import Test Cases
  from base import *
  from test_branches import *
  from test_changesets import *
  from test_cli import *
  from test_filenodes_unicode_path import *
  from test_getitem import *
  from test_getslice import *
  from test_git import *
  from test_hg import *
  from test_inmemchangesets import *
  from test_nodes import *
  from test_repository import *
  from test_tags import *
  from test_utils import *
  from test_utils_filesize import *
  from test_utils_progressbar import *
  from test_vcs import *
  from test_workdirs import *
  
  
  def setup_package():
      """
      Prepares whole package for tests which mainly means it would try to fetch
      test repositories or use already existing ones.
      """
      fetchers = {
          'hg': {
              'alias': 'hg',
              'test_repo_path': TEST_HG_REPO,
              'remote_repo': HG_REMOTE_REPO,
              'clone_cmd': 'hg clone',
          },
          'git': {
              'alias': 'git',
              'test_repo_path': TEST_GIT_REPO,
              'remote_repo': GIT_REMOTE_REPO,
              'clone_cmd': 'git clone --bare',
          },
      }
      try:
          for scm, fetcher_info in fetchers.items():
              fetcher = SCMFetcher(**fetcher_info)
              fetcher.setup()
      except VCSTestError, err:
          raise RuntimeError(str(err))
  
  
  def collector():
      setup_package()
      start_dir = os.path.abspath(os.path.dirname(__file__))
      return unittest.defaultTestLoader.discover(start_dir)
  
  
  def main():
      collector()
      unittest.main()
  
  if __name__ == '__main__':
      main()
  
new_contents: """
  Unit tests for vcs_ library.
  
  In order to run tests we need to prepare our environment first. Tests would be
  run for each engine listed at ``conf.SCM_TESTS`` - keys are aliases from
  ``vcs.backends.BACKENDS``.
  
  For each SCM we run tests for, we need some repository. We would use
  repositories location from system environment variables or test suite defaults
  - see ``conf`` module for more detail. We simply try to check if repository at
  certain location exists, if not we would try to fetch them. At ``test_vcs`` or
  ``test_common`` we run unit tests common for each repository type and for
  example specific mercurial tests are located at ``test_hg`` module.
  
  Oh, and tests are run with ``unittest.collector`` wrapped by ``collector``
  function at ``tests/__init__.py``.
  
  .. _vcs: http://bitbucket.org/marcinkuzminski/vcs
  .. _unittest: http://pypi.python.org/pypi/unittest
  
  """
  from vcs.utils.compat import unittest
  from conf import *
  from utils import VCSTestError, SCMFetcher
  
  # Import Test Cases
  from base import *
  from test_branches import *
  from test_changesets import *
  from test_cli import *
  from test_filenodes_unicode_path import *
  from test_getitem import *
  from test_getslice import *
  from test_git import *
  from test_hg import *
  from test_inmemchangesets import *
  from test_nodes import *
  from test_repository import *
  from test_tags import *
  from test_utils import *
  from test_utils_filesize import *
  from test_utils_progressbar import *
  from test_vcs import *
  from test_workdirs import *
  
  
  def setup_package():
      """
      Prepares whole package for tests which mainly means it would try to fetch
      test repositories or use already existing ones.
      """
      fetchers = {
          'hg': {
              'alias': 'hg',
              'test_repo_path': TEST_HG_REPO,
              'remote_repo': HG_REMOTE_REPO,
              'clone_cmd': 'hg clone --insecure',
          },
          'git': {
              'alias': 'git',
              'test_repo_path': TEST_GIT_REPO,
              'remote_repo': GIT_REMOTE_REPO,
              'clone_cmd': 'git clone --bare',
          },
      }
      try:
          for scm, fetcher_info in fetchers.items():
              fetcher = SCMFetcher(**fetcher_info)
              fetcher.setup()
      except VCSTestError, err:
          raise RuntimeError(str(err))
  
  
  def collector():
      setup_package()
      start_dir = os.path.abspath(os.path.dirname(__file__))
      return unittest.defaultTestLoader.discover(start_dir)
  
  
  def main():
      collector()
      unittest.main()
  
  if __name__ == '__main__':
      main()
  
subject: disable security checks on hg clone for travis