@Test
public void testMultipleFilter() {

    displayerCoordinator.drawAll();
    // Click on the "2014" slice
    yearBarChart.filterUpdate(COLUMN_DATE, 2);
    // Click on the "Sales" slice
    deptPieChart.filterUpdate(COLUMN_DEPARTMENT, 1);
    // Check the allRowsTable receives all the filter requests
    DataSet dataSet = allRowsTable.getDataSetHandler().getLastDataSet();
    assertEquals(dataSet.getRowCount(), 2);
}