+import { expect } from 'expect'
+
+import {
+ defaultQueueSize,
+ FixedPriorityQueue
+} from '../lib/fixed-priority-queue.cjs'
+
+describe.skip('Fixed Priority queue test suite', () => {
+ it('Verify constructor() behavior', () => {
+ expect(() => new FixedPriorityQueue('')).toThrow(
+ new TypeError('Invalid fixed priority queue size: is not an integer')
+ )
+ expect(() => new FixedPriorityQueue(-1)).toThrow(
+ new RangeError('Invalid fixed priority queue size: -1 < 0')
+ )
+ let fixedPriorityQueue = new FixedPriorityQueue()
+ expect(fixedPriorityQueue.start).toBe(0)
+ expect(fixedPriorityQueue.size).toBe(0)
+ expect(fixedPriorityQueue.maxSize).toBe(0)
+ expect(fixedPriorityQueue.nodeArray).toBeInstanceOf(Array)
+ expect(fixedPriorityQueue.nodeArray.length).toBe(defaultQueueSize)
+ fixedPriorityQueue = new FixedPriorityQueue(2)
+ expect(fixedPriorityQueue.start).toBe(0)
+ expect(fixedPriorityQueue.size).toBe(0)
+ expect(fixedPriorityQueue.maxSize).toBe(0)
+ expect(fixedPriorityQueue.nodeArray).toBeInstanceOf(Array)
+ expect(fixedPriorityQueue.nodeArray.length).toBe(2)
+ })
+
+ it('Verify enqueue() behavior', () => {
+ const fixedPriorityQueue = new FixedPriorityQueue()
+ let rtSize = fixedPriorityQueue.enqueue(1)
+ expect(fixedPriorityQueue.start).toBe(0)
+ expect(fixedPriorityQueue.size).toBe(1)
+ expect(fixedPriorityQueue.maxSize).toBe(1)
+ expect(rtSize).toBe(fixedPriorityQueue.size)
+ expect(fixedPriorityQueue.nodeArray).toMatchObject([
+ { data: 1, priority: 0 }
+ ])
+ rtSize = fixedPriorityQueue.enqueue(2)
+ expect(fixedPriorityQueue.start).toBe(0)
+ expect(fixedPriorityQueue.size).toBe(2)
+ expect(fixedPriorityQueue.maxSize).toBe(2)
+ expect(rtSize).toBe(fixedPriorityQueue.size)
+ expect(fixedPriorityQueue.nodeArray).toMatchObject([
+ { data: 1, priority: 0 },
+ { data: 2, priority: 0 }
+ ])
+ rtSize = fixedPriorityQueue.enqueue(3)
+ expect(fixedPriorityQueue.start).toBe(0)
+ expect(fixedPriorityQueue.size).toBe(3)
+ expect(fixedPriorityQueue.maxSize).toBe(3)
+ expect(rtSize).toBe(fixedPriorityQueue.size)
+ expect(fixedPriorityQueue.nodeArray).toMatchObject([
+ { data: 1, priority: 0 },
+ { data: 2, priority: 0 },
+ { data: 3, priority: 0 }
+ ])
+ rtSize = fixedPriorityQueue.enqueue(3, -1)
+ expect(fixedPriorityQueue.start).toBe(0)
+ expect(fixedPriorityQueue.size).toBe(4)
+ expect(fixedPriorityQueue.maxSize).toBe(4)
+ expect(rtSize).toBe(fixedPriorityQueue.size)
+ expect(fixedPriorityQueue.nodeArray).toMatchObject([
+ { data: 3, priority: -1 },
+ { data: 1, priority: 0 },
+ { data: 2, priority: 0 },
+ { data: 3, priority: 0 }
+ ])
+ rtSize = fixedPriorityQueue.enqueue(1, 1)
+ expect(fixedPriorityQueue.start).toBe(0)
+ expect(fixedPriorityQueue.size).toBe(5)
+ expect(fixedPriorityQueue.maxSize).toBe(5)
+ expect(rtSize).toBe(fixedPriorityQueue.size)
+ expect(fixedPriorityQueue.nodeArray).toMatchObject([
+ { data: 3, priority: -1 },
+ { data: 1, priority: 0 },
+ { data: 2, priority: 0 },
+ { data: 3, priority: 0 },
+ { data: 1, priority: 1 }
+ ])
+ })
+
+ it('Verify dequeue() behavior', () => {
+ const fixedPriorityQueue = new FixedPriorityQueue()
+ fixedPriorityQueue.enqueue(1)
+ fixedPriorityQueue.enqueue(2, -1)
+ fixedPriorityQueue.enqueue(3)
+ expect(fixedPriorityQueue.start).toBe(0)
+ expect(fixedPriorityQueue.size).toBe(3)
+ expect(fixedPriorityQueue.maxSize).toBe(3)
+ let rtItem = fixedPriorityQueue.dequeue()
+ expect(fixedPriorityQueue.start).toBe(1)
+ expect(fixedPriorityQueue.size).toBe(2)
+ expect(fixedPriorityQueue.maxSize).toBe(3)
+ expect(rtItem).toBe(2)
+ expect(fixedPriorityQueue.nodeArray).toMatchObject([
+ { data: 2, priority: -1 },
+ { data: 1, priority: 0 },
+ { data: 3, priority: 0 }
+ ])
+ rtItem = fixedPriorityQueue.dequeue()
+ expect(fixedPriorityQueue.start).toBe(2)
+ expect(fixedPriorityQueue.size).toBe(1)
+ expect(fixedPriorityQueue.maxSize).toBe(3)
+ expect(rtItem).toBe(1)
+ expect(fixedPriorityQueue.nodeArray).toMatchObject([
+ { data: 2, priority: -1 },
+ { data: 1, priority: 0 },
+ { data: 3, priority: 0 }
+ ])
+ rtItem = fixedPriorityQueue.dequeue()
+ expect(fixedPriorityQueue.start).toBe(3)
+ expect(fixedPriorityQueue.size).toBe(0)
+ expect(fixedPriorityQueue.maxSize).toBe(3)
+ expect(rtItem).toBe(3)
+ expect(fixedPriorityQueue.nodeArray).toMatchObject([
+ { data: 2, priority: -1 },
+ { data: 1, priority: 0 },
+ { data: 3, priority: 0 }
+ ])
+ expect(fixedPriorityQueue.dequeue()).toBe(undefined)
+ })
+
+ it('Verify iterator behavior', () => {
+ const fixedPriorityQueue = new FixedPriorityQueue()
+ fixedPriorityQueue.enqueue(1)
+ fixedPriorityQueue.enqueue(2)
+ fixedPriorityQueue.enqueue(3)
+ let i = fixedPriorityQueue.start + 1
+ for (const value of fixedPriorityQueue) {
+ expect(value).toBe(i)
+ ++i
+ }
+ fixedPriorityQueue.dequeue()
+ i = fixedPriorityQueue.start + 1
+ for (const value of fixedPriorityQueue) {
+ expect(value).toBe(i)
+ ++i
+ }
+ })
+
+ it('Verify clear() behavior', () => {
+ const fixedPriorityQueue = new FixedPriorityQueue()
+ fixedPriorityQueue.start = 1
+ fixedPriorityQueue.size = 2
+ fixedPriorityQueue.maxSize = 2
+ fixedPriorityQueue.nodeArray = [
+ { data: 2, priority: 0 },
+ { data: 3, priority: 0 }
+ ]
+ fixedPriorityQueue.clear()
+ expect(fixedPriorityQueue.start).toBe(0)
+ expect(fixedPriorityQueue.size).toBe(0)
+ expect(fixedPriorityQueue.maxSize).toBe(0)
+ expect(fixedPriorityQueue.nodeArray).toMatchObject([
+ { data: 2, priority: 0 },
+ { data: 3, priority: 0 }
+ ])
+ })
+})