@Test
public void testFilterPropagations() {

    displayerCoordinator.drawAll();
    // Click on the "Engineering" slice
    reset(listener);
    deptPieChart.filterUpdate(COLUMN_DEPARTMENT, 0);
    // Check the allRowsTable receives the filter request
    DataSet dataSet = allRowsTable.getDataSetHandler().getLastDataSet();
    assertEquals(dataSet.getRowCount(), 19);
    verify(listener).onDataLookup(allRowsTable);
    verify(listener).onRedraw(allRowsTable);
}