@Test
public void testInsertionOnPlaceOfUsedRows() throws Exception {

    addRowWithPriorityOver("");
    addRowWithPriorityOver("1");
    addRowWithPriorityOver("1");
    addRowWithPriorityOver("2");
    addRowWithPriorityOver("4");
    modelSynchronizer.insertRow(4);
    uiModel.setCellValue(4,
                         3,
                         new GuidedDecisionTableUiCell<>(""));
    assertPriorities(Arrays.asList("",
                                   "1",
                                   "1",
                                   "2",
                                   "",
                                   "5"));
}