updateTableRow(rowModel, 2, 1000);
updateTableRow(rowModel, 3, 1000, 0, 2000);
updateTableRow(rowModel, 4, 1000);
updateTableRow(rowModel, 5, 1000);
rowModel.validateActualSizes();
assertEquals(3, rowModel.getRow(3).getMaximumRowSpan());
assertEquals(1000, rowModel.getRow(3).getPreferredSize(1));
assertEquals(1000, rowModel.getRow(3).getValidatedTrailingSize(1));
assertEquals(0, rowModel.getRow(3).getPreferredSize(2));