@Test
public void testAddElement() {
int[] arr_expected = new int[] {0, 3, 4, 5, 6, 7, 8};
BinaryHeap<Integer> heap = new BinaryHeap<Integer>();
heap.add(0);
heap.add(5);
heap.add(7);
heap.add(3);
heap.add(6);
heap.add(4);
heap.add(8);
Integer[] arr_actual = heap.toArray(new Integer[0]);
assertTrue(isSameArray(arr_actual, arr_expected));
}
@Test
public void testPollElement() {
BinaryHeap<Integer> heap = new BinaryHeap<Integer>();
heap.add(0);
heap.add(5);
heap.add(7);
heap.add(3);
heap.add(6);
heap.add(4);
heap.add(8);
assertTrue(isSameArray(heap.toArray(new Integer[0]), new int[] {0, 3, 4, 5, 6, 7, 8}));
assertTrue(heap.poll() == 0);
assertTrue(isSameArray(heap.toArray(new Integer[0]), new int[] {3, 5, 4, 8, 6, 7}));
assertTrue(heap.poll() == 3);
assertTrue(isSameArray(heap.toArray(new Integer[0]), new int[] {4, 5, 7, 8, 6}));
assertTrue(heap.poll() == 4);
assertTrue(isSameArray(heap.toArray(new Integer[0]), new int[] {5, 6, 7, 8}));
assertTrue(heap.poll() == 5);
assertTrue(isSameArray(heap.toArray(new Integer[0]), new int[] {6, 8, 7}));
assertTrue(heap.poll() == 6);
assertTrue(isSameArray(heap.toArray(new Integer[0]), new int[] {7, 8}));
assertTrue(heap.poll() == 7);
assertTrue(isSameArray(heap.toArray(new Integer[0]), new int[] {8}));
}