+ assertTrue(h.equals(h2));
+ assertEquals(h.getSize(), h2.getSize());
+
+ HiddenColumns hc = new HiddenColumns();
+ hc.hideColumns(3, 5);
+ hc.hideColumns(15, 20);
+ hc.hideColumns(45, 60);
+
+ tohide = new BitSet();
+
+ // all unhidden if tohide is empty and range covers hidden
+ hc.clearAndHideColumns(tohide, 1, 70);
+ assertTrue(!hc.hasHiddenColumns());
+ assertEquals(0, hc.getSize());
+
+ hc.hideColumns(3, 5);
+ hc.hideColumns(15, 20);
+ hc.hideColumns(45, 60);
+ assertEquals(25, hc.getSize());
+
+ // but not if range does not cover hidden
+ hc.clearAndHideColumns(tohide, 23, 40);
+ assertTrue(hc.hasHiddenColumns());
+ assertEquals(25, hc.getSize());
+
+ // and partial unhide if range partially covers
+ hc.clearAndHideColumns(tohide, 1, 17);
+ Iterator<int[]> it = hc.iterator();
+ assertTrue(it.hasNext());
+ int[] region = it.next();
+
+ assertEquals(18, region[0]);
+ assertEquals(20, region[1]);
+
+ assertTrue(it.hasNext());
+ region = it.next();
+
+ assertEquals(45, region[0]);
+ assertEquals(60, region[1]);
+
+ assertFalse(it.hasNext());
+ assertEquals(19, hc.getSize());