How to use the tmuxp.config.expand function in tmuxp

def test_before_load_true_if_test_passes(server):
    config_script_completes = loadfixture(
        "workspacebuilder/config_script_completes.yaml"
    )
    assert os.path.exists(os.path.join(fixtures_dir, 'script_complete.sh'))
    sconfig = kaptan.Kaptan(handler='yaml')
    yaml = config_script_completes.format(
        fixtures_dir=fixtures_dir,
        script_complete=os.path.join(fixtures_dir, 'script_complete.sh'),
    )

    sconfig = sconfig.import_config(yaml).get()
    sconfig = config.expand(sconfig)
    sconfig = config.trickle(sconfig)

    builder = WorkspaceBuilder(sconf=sconfig)

    with temp_session(server) as session:
        builder.build(session=session)

def test_config_expand1():
    """Expand shell commands from string to list."""
    test_config = config.expand(fixtures.expand1.before_config)
    assert test_config == fixtures.expand1.after_config

def test_before_load_true_if_test_passes_with_args(server):
    config_script_completes = loadfixture(
        "workspacebuilder/config_script_completes.yaml"
    )

    assert os.path.exists(os.path.join(fixtures_dir, 'script_complete.sh'))
    sconfig = kaptan.Kaptan(handler='yaml')
    yaml = config_script_completes.format(
        fixtures_dir=fixtures_dir,
        script_complete=os.path.join(fixtures_dir, 'script_complete.sh') + ' -v',
    )

    sconfig = sconfig.import_config(yaml).get()
    sconfig = config.expand(sconfig)
    sconfig = config.trickle(sconfig)

    builder = WorkspaceBuilder(sconf=sconfig)

    with temp_session(server) as session:
        builder.build(session=session)

Blank strings::

        panes: [
            ''
        ]

        # should output to:
        panes:
            'shell_command': ['']

    """

    yaml_config_file = os.path.join(example_dir, 'blank-panes.yaml')
    test_config = load_config(yaml_config_file)
    assert config.expand(test_config) == fixtures.expand_blank.expected

def test_suppress_history(session):
    yaml_config = loadfixture("workspacebuilder/suppress_history.yaml")
    sconfig = kaptan.Kaptan(handler='yaml')
    sconfig = sconfig.import_config(yaml_config).get()
    sconfig = config.expand(sconfig)
    sconfig = config.trickle(sconfig)

    builder = WorkspaceBuilder(sconf=sconfig)
    builder.build(session=session)

    inHistoryWindow = session.find_where({'window_name': 'inHistory'})
    isMissingWindow = session.find_where({'window_name': 'isMissing'})

    def assertHistory(cmd, hist):
        return 'inHistory' in cmd and cmd.endswith(hist)

    def assertIsMissing(cmd, hist):
        return 'isMissing' in cmd and not cmd.endswith(hist)

    for w, window_name, assertCase in [
        (inHistoryWindow, 'inHistory', assertHistory),

def test_blank_pane_count(session):
    """:todo: Verify blank panes of various types build into workspaces."""
    yaml_config_file = os.path.join(example_dir, 'blank-panes.yaml')
    test_config = kaptan.Kaptan().import_config(yaml_config_file).get()
    test_config = config.expand(test_config)
    builder = WorkspaceBuilder(sconf=test_config)
    builder.build(session=session)

    assert session == builder.session

    window1 = session.find_where({'window_name': 'Blank pane test'})
    assert len(window1._panes) == 3

    window2 = session.find_where({'window_name': 'More blank panes'})
    assert len(window2._panes) == 3

    window3 = session.find_where({'window_name': 'Empty string (return)'})
    assert len(window3._panes) == 3

    window4 = session.find_where({'window_name': 'Blank with options'})
    assert len(window4._panes) == 2

def test_global_options(session):
    yaml_config = loadfixture("workspacebuilder/global_options.yaml")
    s = session
    sconfig = kaptan.Kaptan(handler='yaml')
    sconfig = sconfig.import_config(yaml_config).get()
    sconfig = config.expand(sconfig)

    builder = WorkspaceBuilder(sconf=sconfig)
    builder.build(session=session)

    assert "top" in s.show_option('status-position', _global=True)
    assert 493 == s.show_option('repeat-time', _global=True)