@Test
  void testPeek() {
    create(5);
    heap.push(4, -16L);
    heap.push(2, 13L);
    heap.push(1, -51L);
    heap.push(3, 4L);
    assertEquals(1, heap.peekId());
    assertEquals(-51L, heap.peekValue());
  }
Ported from <a href=
"https://github.com/graphhopper/graphhopper/blob/master/core/src/test/java/com/graphhopper/coll/MinHeapWithUpdateTest.java">GraphHopper</a>
and modified to use long instead of float values, use stable random seed for reproducibility, and to use new
implementations.
planetiler-core/src/test/java/com/onthegomap/planetiler/collection/MinHeapTest.java