afterEach(function() {
        Plotly.purge(gd);
        destroyGraphDiv();

        Plotly.setPlotConfig({
            mapboxAccessToken: MAPBOX_ACCESS_TOKEN
        });
    });
 afterEach(function() {
     Plotly.purge(gd);
     destroyGraphDiv();
 });
            .then(function() {
                _assert([true, 0, 10], [true, 0, 3]);

                return Plotly.purge(gd);
            })