assertEquals(true, cols.getColArray(1).isSetCollapsed());
assertEquals(10, cols.getColArray(1).getMin()); // 1 based
assertEquals(13, cols.getColArray(1).getMax()); // 1 based
sheet1.groupColumn( (short)10, (short)11 );
assertEquals(4,cols.sizeOfColArray());
assertEquals(false,cols.getColArray(0).isSetHidden());
assertEquals(true, cols.getColArray(0).isSetCollapsed());
assertEquals(5, cols.getColArray(0).getMin()); // 1 based
assertEquals(8, cols.getColArray(0).getMax()); // 1 based