expect(priorityQueue.buckets).toBe(0)
expect(priorityQueue.size).toBe(0)
expect(priorityQueue.maxSize).toBe(0)
+ expect(priorityQueue.enablePriority).toBe(false)
expect(priorityQueue.head).toBeInstanceOf(FixedPriorityQueue)
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.head.capacity).toBe(defaultBucketSize)
expect(priorityQueue.tail).toBeInstanceOf(FixedPriorityQueue)
expect(priorityQueue.tail).toStrictEqual(priorityQueue.head)
const bucketSize = 2
- priorityQueue = new PriorityQueue(bucketSize)
+ priorityQueue = new PriorityQueue(bucketSize, true)
expect(priorityQueue.bucketSize).toBe(bucketSize)
expect(priorityQueue.buckets).toBe(0)
expect(priorityQueue.size).toBe(0)
expect(priorityQueue.maxSize).toBe(0)
+ expect(priorityQueue.enablePriority).toBe(true)
expect(priorityQueue.head).toBeInstanceOf(FixedPriorityQueue)
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.head.capacity).toBe(bucketSize)
})
it('Verify default bucket size enqueue() behavior', () => {
- const priorityQueue = new PriorityQueue()
+ const priorityQueue = new PriorityQueue(defaultBucketSize, true)
let rtSize = priorityQueue.enqueue(1)
expect(priorityQueue.buckets).toBe(0)
expect(priorityQueue.size).toBe(1)
expect(priorityQueue.maxSize).toBe(1)
expect(rtSize).toBe(priorityQueue.size)
expect(priorityQueue.head.nodeArray).toMatchObject([
- { data: 1, priority: 0 }
+ { data: 1, priority: 0 },
])
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.tail).toStrictEqual(priorityQueue.head)
expect(rtSize).toBe(priorityQueue.size)
expect(priorityQueue.head.nodeArray).toMatchObject([
{ data: 1, priority: 0 },
- { data: 2, priority: 0 }
+ { data: 2, priority: 0 },
])
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.tail).toStrictEqual(priorityQueue.head)
expect(priorityQueue.head.nodeArray).toMatchObject([
{ data: 1, priority: 0 },
{ data: 2, priority: 0 },
- { data: 3, priority: 0 }
+ { data: 3, priority: 0 },
])
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.tail).toStrictEqual(priorityQueue.head)
{ data: 3, priority: -1 },
{ data: 1, priority: 0 },
{ data: 2, priority: 0 },
- { data: 3, priority: 0 }
+ { data: 3, priority: 0 },
])
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.tail).toStrictEqual(priorityQueue.head)
{ data: 1, priority: 0 },
{ data: 2, priority: 0 },
{ data: 3, priority: 0 },
- { data: 1, priority: 1 }
+ { data: 1, priority: 1 },
])
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.tail).toStrictEqual(priorityQueue.head)
})
it('Verify bucketSize=2 enqueue() behavior', () => {
- const priorityQueue = new PriorityQueue(2)
+ const priorityQueue = new PriorityQueue(2, true)
let rtSize = priorityQueue.enqueue(1)
expect(priorityQueue.buckets).toBe(0)
expect(priorityQueue.size).toBe(1)
expect(priorityQueue.maxSize).toBe(1)
expect(rtSize).toBe(priorityQueue.size)
expect(priorityQueue.head.nodeArray).toMatchObject([
- { data: 1, priority: 0 }
+ { data: 1, priority: 0 },
])
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.tail).toStrictEqual(priorityQueue.head)
expect(rtSize).toBe(priorityQueue.size)
expect(priorityQueue.head.nodeArray).toMatchObject([
{ data: 1, priority: 0 },
- { data: 2, priority: 0 }
+ { data: 2, priority: 0 },
])
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.tail).toStrictEqual(priorityQueue.head)
expect(priorityQueue.maxSize).toBe(3)
expect(rtSize).toBe(priorityQueue.size)
expect(priorityQueue.head.nodeArray).toMatchObject([
- { data: 3, priority: 0 }
+ { data: 3, priority: 0 },
])
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.tail.nodeArray).toMatchObject([
{ data: 1, priority: 0 },
- { data: 2, priority: 0 }
+ { data: 2, priority: 0 },
])
expect(priorityQueue.tail.next).toStrictEqual(priorityQueue.head)
rtSize = priorityQueue.enqueue(3, -1)
expect(rtSize).toBe(priorityQueue.size)
expect(priorityQueue.head.nodeArray).toMatchObject([
{ data: 3, priority: -1 },
- { data: 3, priority: 0 }
+ { data: 3, priority: 0 },
])
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.tail.nodeArray).toMatchObject([
{ data: 1, priority: 0 },
- { data: 2, priority: 0 }
+ { data: 2, priority: 0 },
])
expect(priorityQueue.tail.next).toStrictEqual(priorityQueue.head)
rtSize = priorityQueue.enqueue(1, 1)
expect(priorityQueue.maxSize).toBe(5)
expect(rtSize).toBe(priorityQueue.size)
expect(priorityQueue.head.nodeArray).toMatchObject([
- { data: 1, priority: 1 }
+ { data: 1, priority: 1 },
])
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.tail.nodeArray).toMatchObject([
{ data: 1, priority: 0 },
- { data: 2, priority: 0 }
+ { data: 2, priority: 0 },
])
expect(priorityQueue.tail.next).not.toStrictEqual(priorityQueue.head)
expect(priorityQueue.tail.next.nodeArray).toMatchObject([
{ data: 3, priority: -1 },
- { data: 3, priority: 0 }
+ { data: 3, priority: 0 },
])
rtSize = priorityQueue.enqueue(3, -2)
expect(priorityQueue.buckets).toBe(3)
expect(rtSize).toBe(priorityQueue.size)
expect(priorityQueue.head.nodeArray).toMatchObject([
{ data: 3, priority: -2 },
- { data: 1, priority: 1 }
+ { data: 1, priority: 1 },
])
expect(priorityQueue.head.next).toBe(undefined)
expect(priorityQueue.tail.nodeArray).toMatchObject([
{ data: 1, priority: 0 },
- { data: 2, priority: 0 }
+ { data: 2, priority: 0 },
])
expect(priorityQueue.tail.next).not.toStrictEqual(priorityQueue.head)
expect(priorityQueue.tail.next.nodeArray).toMatchObject([
{ data: 3, priority: -1 },
- { data: 3, priority: 0 }
+ { data: 3, priority: 0 },
])
})
it('Verify default bucket size dequeue() behavior', () => {
- const priorityQueue = new PriorityQueue()
+ const priorityQueue = new PriorityQueue(defaultBucketSize, true)
priorityQueue.enqueue(1)
priorityQueue.enqueue(2, -1)
priorityQueue.enqueue(3)
})
it('Verify bucketSize=2 dequeue() behavior', () => {
- const priorityQueue = new PriorityQueue(2)
+ const priorityQueue = new PriorityQueue(2, true)
priorityQueue.enqueue(1)
priorityQueue.enqueue(2)
priorityQueue.enqueue(3)
expect(priorityQueue.tail.next).toBe(undefined)
})
+ it('Verify enablePriority setter behavior', () => {
+ const priorityQueue = new PriorityQueue(2)
+ expect(priorityQueue.enablePriority).toBe(false)
+ priorityQueue.enqueue(1)
+ priorityQueue.enqueue(2)
+ priorityQueue.enqueue(3)
+ priorityQueue.enqueue(4)
+ let buckets = 0
+ let node = priorityQueue.tail
+ while (node != null) {
+ expect(node.enablePriority).toBe(false)
+ node = node.next
+ ++buckets
+ }
+ expect(buckets).toBe(2)
+ priorityQueue.enablePriority = true
+ expect(priorityQueue.enablePriority).toBe(true)
+ node = priorityQueue.tail
+ while (node != null) {
+ expect(node.enablePriority).toBe(true)
+ node = node.next
+ }
+ })
+
it('Verify iterator behavior', () => {
const priorityQueue = new PriorityQueue(2)
priorityQueue.enqueue(1)