How to use the tmuxp.exc.ConfigError function in tmuxp

def test_no_windows():
    yaml_config = """
    session_name: test session
    """

    sconfig = kaptan.Kaptan(handler='yaml')
    sconfig = sconfig.import_config(yaml_config).get()

    with pytest.raises(exc.ConfigError) as excinfo:
        config.validate_schema(sconfig)
        assert excinfo.match(r'list of "windows"')

- window_name: editor
      panes:
      shell_command:
      - tail -F /var/log/syslog
      start_directory: /var/log
    - window_name: logging
      automatic-rename: true
      panes:
      - shell_command:
      - htop
    """

    sconfig = kaptan.Kaptan(handler='yaml')
    sconfig = sconfig.import_config(yaml_config).get()

    with pytest.raises(exc.ConfigError) as excinfo:
        config.validate_schema(sconfig)
        assert excinfo.matches(r'requires "session_name"')

Returns
    -------
    bool
    """

    # verify session_name
    if 'session_name' not in sconf:
        raise exc.ConfigError('config requires "session_name"')

    if 'windows' not in sconf:
        raise exc.ConfigError('config requires list of "windows"')

    for window in sconf['windows']:
        if 'window_name' not in window:
            raise exc.ConfigError('config window is missing "window_name"')

    return True

Parameters
    ----------
    sconf : dict
        session configuration

    Returns
    -------
    bool
    """

    # verify session_name
    if 'session_name' not in sconf:
        raise exc.ConfigError('config requires "session_name"')

    if 'windows' not in sconf:
        raise exc.ConfigError('config requires list of "windows"')

    for window in sconf['windows']:
        if 'window_name' not in window:
            raise exc.ConfigError('config window is missing "window_name"')

    return True

"""
    Return True if config schema is correct.

    Parameters
    ----------
    sconf : dict
        session configuration

    Returns
    -------
    bool
    """

    # verify session_name
    if 'session_name' not in sconf:
        raise exc.ConfigError('config requires "session_name"')

    if 'windows' not in sconf:
        raise exc.ConfigError('config requires list of "windows"')

    for window in sconf['windows']:
        if 'window_name' not in window:
            raise exc.ConfigError('config window is missing "window_name"')

    return True

from ._compat import implements_to_string


class TmuxpException(Exception):

    """Base Exception for Tmuxp Errors."""


class ConfigError(TmuxpException):

    """Error parsing tmuxp configuration dict."""

    pass


class EmptyConfigException(ConfigError):

    """Configuration is empty."""

    pass


class BeforeLoadScriptNotExists(OSError):
    def __init__(self, *args, **kwargs):
        super(BeforeLoadScriptNotExists, self).__init__(*args, **kwargs)

        self.strerror = "before_script file '%s' doesn't exist." % self.strerror


@implements_to_string
class BeforeLoadScriptError(Exception):