@Test
void shouldZoomOutOfAreaChart() {

    final LinkedList<FixationPoint> mockPoints = new LinkedList<>(List.of(
        new FixationPoint(50, 50, 1, 2),
        new FixationPoint(100, 100, 2, 3),
        new FixationPoint(150, 150, 4, 5)
    ));
    final AreaChart<Number, Number> areaChart = StatDisplayUtils.buildAreaChart(mockPoints, mockRegion);
    final VBox parent = new VBox();
    parent.getChildren().add(areaChart);
    areaChart.fireEvent(mouseClickEvent(areaChart));
    areaChart.fireEvent(mouseClickEvent(areaChart));
    assertEquals(1, areaChart.getScaleX());
    assertEquals(1, areaChart.getScaleY());
}