def METHOD_NAME():
    mock = MagicMock()
    with patch.object(rvm, "_check_rvm") as mock_method:
        mock_method.return_value = {"result": True}
        with patch.object(rvm, "_check_and_install_ruby", new=mock):
            rvm.installed(
                "1.9.3", default=True, env=[{"RUBY_CONFIGURE_OPTS": "--foobar"}]
            )
    mock.assert_called_once_with(
        {"result": True},
        "1.9.3",
        True,
        user=None,
        opts=None,
        env=[{"RUBY_CONFIGURE_OPTS": "--foobar"}],
    )