private void testAdd(MinHeap<HasIndex> pq) { DummyHeapEntry entry0 = new DummyHeapEntry(5); DummyHeapEntry entry1 = new DummyHeapEntry(3); DummyHeapEntry entry2 = new DummyHeapEntry(6); Assert.assertEquals(0, pq.size()); pq.add(entry0, 1.0); Assert.assertEquals(1, pq.size()); pq.add(entry1, 2.0); Assert.assertEquals(2, pq.size()); pq.add(entry2, 2.0); // different element with same priority Assert.assertEquals(3, pq.size()); pq.add(entry2, 3.0); // same element with different priority Assert.assertEquals(3, pq.size()); // should not be added! Assert.assertEquals(3, iteratorElementCount(pq.iterator())); }
private void testAdd_Null(MinHeap<HasIndex> pq) { try { pq.add(null, 1.0); Assert.fail("missing NullPointerException."); } catch (NullPointerException e) { log.info("catched expected exception. ", e); } Assert.assertEquals(0, pq.size()); Assert.assertEquals(0, iteratorElementCount(pq.iterator())); }
private void testRemoveAndAdd_HigherPriority(MinHeap<HasIndex> pq) { DummyHeapEntry entry0 = new DummyHeapEntry(5); DummyHeapEntry entry1 = new DummyHeapEntry(3); DummyHeapEntry entry2 = new DummyHeapEntry(6); pq.add(entry0, 5.0); pq.add(entry1, 3.0); pq.add(entry2, 6.0); Assert.assertEquals(3, pq.size()); // test removing an element and adding it with higher priority (=lower value) pq.remove(entry0); Assert.assertEquals(2, pq.size()); pq.add(entry0, 2.5); Assert.assertEquals(3, pq.size()); assertEqualsHE(entry0, pq.poll()); assertEqualsHE(entry1, pq.poll()); assertEqualsHE(entry2, pq.poll()); Assert.assertNull(pq.poll()); }
private void testRemoveAndAdd_LowerPriority(MinHeap<HasIndex> pq) { DummyHeapEntry entry0 = new DummyHeapEntry(5); DummyHeapEntry entry1 = new DummyHeapEntry(3); DummyHeapEntry entry2 = new DummyHeapEntry(6); pq.add(entry0, 5.0); pq.add(entry1, 3.0); pq.add(entry2, 6.0); Assert.assertEquals(3, pq.size()); // test removing an element and adding it with lower priority (=higher value) pq.remove(entry0); Assert.assertEquals(2, pq.size()); pq.add(entry0, 7.0); Assert.assertEquals(3, pq.size()); assertEqualsHE(entry1, pq.poll()); assertEqualsHE(entry2, pq.poll()); assertEqualsHE(entry0, pq.poll()); Assert.assertNull(pq.poll()); }
Assert.assertEquals(2, pq.size()); coll = getIteratorCollection(pq.iterator()); Assert.assertEquals(2, coll.size()); Assert.assertEquals(2, pq.size()); coll = getIteratorCollection(pq.iterator()); Assert.assertEquals(2, coll.size()); Assert.assertEquals(2, pq.size()); coll = getIteratorCollection(pq.iterator()); Assert.assertEquals(2, coll.size());
pq.add(entry1, 5.0); pq.add(entry0, 5.0); Assert.assertEquals(4, pq.size()); assertEqualsHE(entry0, pq.poll()); Assert.assertEquals(3, pq.size()); assertEqualsHE(entry1, pq.poll()); Assert.assertEquals(2, pq.size()); assertEqualsHE(entry2, pq.poll()); Assert.assertEquals(1, pq.size()); assertEqualsHE(entry3, pq.poll()); Assert.assertEquals(0, pq.size()); Assert.assertNull(pq.poll());
private void testPoll2(MinHeap<HasIndex> pq) { DummyHeapEntry entry0 = new DummyHeapEntry(0); DummyHeapEntry entry1 = new DummyHeapEntry(1); DummyHeapEntry entry2 = new DummyHeapEntry(2); DummyHeapEntry entry3 = new DummyHeapEntry(3); DummyHeapEntry entry4 = new DummyHeapEntry(4); DummyHeapEntry entry5 = new DummyHeapEntry(5); pq.add(entry0, 5.0); pq.add(entry1, 3.0); pq.add(entry2, 6.0); Assert.assertEquals(3, pq.size()); assertEqualsHE(entry1, pq.poll()); Assert.assertEquals(2, pq.size()); pq.add(entry3, 1.0); pq.add(entry4, 4.0); pq.add(entry5, 9.0); Assert.assertEquals(5, pq.size()); assertEqualsHE(entry3, pq.poll()); assertEqualsHE(entry4, pq.poll()); assertEqualsHE(entry0, pq.poll()); assertEqualsHE(entry2, pq.poll()); assertEqualsHE(entry5, pq.poll()); Assert.assertEquals(0, pq.size()); Assert.assertNull(pq.poll()); }
private void testPoll(MinHeap<HasIndex> pq) { DummyHeapEntry entry0 = new DummyHeapEntry(5); DummyHeapEntry entry1 = new DummyHeapEntry(3); DummyHeapEntry entry2 = new DummyHeapEntry(6); DummyHeapEntry entry3 = new DummyHeapEntry(1); DummyHeapEntry entry4 = new DummyHeapEntry(4); DummyHeapEntry entry5 = new DummyHeapEntry(9); pq.add(entry0, 5.0); pq.add(entry1, 3.0); pq.add(entry2, 6.0); Assert.assertEquals(3, pq.size()); assertEqualsHE(entry1, pq.poll()); Assert.assertEquals(2, pq.size()); pq.add(entry3, 1.0); pq.add(entry4, 4.0); pq.add(entry5, 9.0); Assert.assertEquals(5, pq.size()); assertEqualsHE(entry3, pq.poll()); assertEqualsHE(entry4, pq.poll()); assertEqualsHE(entry0, pq.poll()); assertEqualsHE(entry2, pq.poll()); assertEqualsHE(entry5, pq.poll()); Assert.assertEquals(0, pq.size()); Assert.assertNull(pq.poll()); }
pq.add(entry2, 6.0); Assert.assertEquals(3, pq.size()); Assert.assertEquals(3, pq.size()); assertEqualsHE(entry0, pq.poll()); assertEqualsHE(entry1, pq.poll()); pq.add(entry1, 5.0); pq.add(entry2, 6.0); Assert.assertEquals(3, pq.size()); pq.decreaseKey(entry2, 4.0); Assert.assertEquals(3, pq.size()); assertEqualsHE(entry2, pq.poll()); assertEqualsHE(entry1, pq.poll());