public void Consolidate_1Node_CorrectSiblings()
        {
            var node = FibonacciHeapTestHelpers.CreateNodeConnectedToSelf(5);

            _heap.Consolidate(node, 1);

            Assert.Multiple(() =>
            {
                Assert.AreEqual(node, node.Prev);
                Assert.AreEqual(node, node.Next);
            });
        }