assertEquals("one", columnReorderLayer.getDataValueByPosition(3, 0));
// delete column position 1 (index 2: value "three")
contents.get(0).remove(2);
underlyingLayer
.fireLayerEvent(new ColumnDeleteEvent(underlyingLayer, 2));
assertEquals(2, columnReorderLayer.getColumnIndexByPosition(0));
assertEquals(1, columnReorderLayer.getColumnIndexByPosition(1));
assertEquals(0, columnReorderLayer.getColumnIndexByPosition(2));
assertEquals(-1, columnReorderLayer.getColumnIndexByPosition(3));