Python unittest.case 模块，SkipTest() 实例源码

def rmtree(path):
    """Remove the given recursively.

    :note: we use shutil rmtree but adjust its behaviour to see whether files that
        couldn't be deleted are read-only. Windows will not remove them in that case"""

    def onerror(func, path, exc_info):
        # Is the error an access error ?
        os.chmod(path, stat.S_IWUSR)

        try:
            func(path)  # Will scream if still not possible to delete.
        except Exception as ex:
            if HIDE_WINDOWS_KNOWN_ERRORS:
                raise SkipTest("FIXME: fails with: PermissionError\n  %s", ex)
            else:
                raise

    return shutil.rmtree(path, False, onerror)

def addOnException(self, exception_handler):

        @wraps(exception_handler)
        def wrapped_handler(exc_info):
            if issubclass(exc_info[0], SkipTest):
                return
            return exception_handler(exc_info)

        super(BaseTestCase, self).addOnException(wrapped_handler)

def options(self, parser, env):
        """
        Add my options to command line.
        """
        env_opt = 'NOSE_WITHOUT_SKIP'
        parser.add_option('--no-skip', action='store_true',
                          dest='noSkip', default=env.get(env_opt, False),
                          help="Disable special handling of SkipTest "
                          "exceptions.")

def test_upgrade(self):
        raise SkipTest("upgrade memcached")
        # add tests for touch, cas, gets etc

def test_unserializable_span_with_finish():
    try:
        import numpy as np
    except ImportError:
        raise SkipTest("numpy not installed")

    # a weird case where manually calling finish with an unserializable
    # span was causing an loop of serialization.
    writer = DummyWriter()
    tracer = Tracer()
    tracer.writer = writer

    with tracer.trace("parent") as span:
        span.metrics['as'] = np.int64(1) # circumvent the data checks
        span.finish()

def test_set_numpy_metric():
    try:
        import numpy as np
    except ImportError:
        raise SkipTest("numpy not installed")
    s = Span(tracer=None, name="test.span")
    s.set_metric("a", np.int64(1))
    eq_(s.get_metric("a"), 1)
    eq_(type(s.get_metric("a")), float)

def options(self, parser, env):
        """
        Add my options to command line.
        """
        env_opt = 'NOSE_WITHOUT_SKIP'
        parser.add_option('--no-skip', action='store_true',
                          dest='noSkip', default=env.get(env_opt, False),
                          help="Disable special handling of SkipTest "
                          "exceptions.")

def start_fixture(self):
        if os.environ.get('GABBI_SKIP_NETWORK', 'False').lower() == 'true':
            raise case.SkipTest('live tests skipped')

def start_fixture(self):
        raise case.SkipTest('entire suite skipped')

def is_extension_enabled(extension_name, service):
    """A function that will check the list of enabled extensions from config

    """
    config_dict = {
        'compute': CONF.compute_feature_enabled.api_extensions,
        'compute_v3': CONF.compute_feature_enabled.api_v3_extensions,
        'volume': CONF.volume_feature_enabled.api_extensions,
        'network': CONF.network_feature_enabled.api_extensions,
        'object': CONF.object_storage_feature_enabled.discoverable_apis,
    }
    if config_dict[service][0] == 'all':
        return True
    if extension_name in config_dict[service]:
        return True
    return False

# there is a mis-match between nose and testtools for older pythons.
# testtools will set skipException to be either
# unittest.case.SkipTest, unittest2.case.SkipTest or an internal skip
# exception, depending on what it can find. Python <2.7 doesn't have
# unittest.case.SkipTest; so if unittest2 is not installed it falls
# back to the internal class.
#
# The current nose skip plugin will decide to raise either
# unittest.case.SkipTest or its own internal exception; it does not
# look for unittest2 or the internal unittest exception.  Thus we must
# monkey-patch testtools.TestCase.skipException to be the exception
# the nose skip plugin expects.
#
# However, with the switch to testr nose may not be available, so we
# require you to opt-in to this fix with an environment variable.
#
# This is temporary until upstream nose starts looking for unittest2
# as testtools does; we can then remove this and ensure unittest2 is
# available for older pythons; then nose and testtools will agree
# unittest2.case.SkipTest is the one-true skip test exception.
#
#   https://review.openstack.org/#/c/33056
#   https://github.com/nose-devs/nose/pull/699

def assertSetup():
    try:
        Client.guess_config()
    except RuntimeError:
        raise SkipTest("no default config is detected")

def start_fixture(self):
        """Set up config."""

        global LOAD_APP_KWARGS

        self.conf = None

        # Determine the database connection.
        db_url = os.environ.get('PIFPAF_URL', "sqlite://").replace(
            "mysql://", "mysql+pymysql://")
        if not db_url:
            raise case.SkipTest('No database connection configured')

        conf = self.conf = service.prepare_service([], [])
        opts.set_defaults(self.conf)

        content = ('{"default": ""}')
        if six.PY3:
            content = content.encode('utf-8')
        self.tempfile = fileutils.write_to_tempfile(content=content,
                                                    prefix='policy',
                                                    suffix='.json')

        conf.set_override("policy_file", self.tempfile,
                          group='oslo_policy')
        conf.set_override(
            'api_paste_config',
            os.path.abspath('etc/panko/api_paste.ini')
        )

        parsed_url = list(urlparse.urlparse(db_url))
        parsed_url[2] += '-%s' % uuidutils.generate_uuid(dashed=False)
        db_url = urlparse.urlunparse(parsed_url)

        conf.set_override('connection', db_url, group='database')

        if (parsed_url[0].startswith("mysql")
           or parsed_url[0].startswith("postgresql")):
            sqlalchemy_utils.create_database(conf.database.connection)

        self.conn = storage.get_connection_from_config(self.conf)
        self.conn.upgrade()

        LOAD_APP_KWARGS = {
            'conf': conf, 'appname': 'panko+noauth',
        }