Merge branch 'master' into combined-prs-branch

[poolifier.git] / tests / priority-queue.test.mjs

diff --git a/tests/priority-queue.test.mjs b/tests/priority-queue.test.mjs
index 6b6c5f409b7d8d85319bcc7647fe4193f7a80045..58931859cb02b7d67f63b6d3c25f0948d199c421 100644 (file)
--- a/tests/priority-queue.test.mjs
+++ b/tests/priority-queue.test.mjs
@@ -1,9 +1,8 @@
 import { expect } from 'expect'
 
-// eslint-disable-next-line n/no-missing-import, import/no-unresolved
 import { PriorityQueue } from '../lib/priority-queue.cjs'
 
-describe.skip('Priority queue test suite', () => {
+describe('Priority queue test suite', () => {
   it('Verify constructor() behavior', () => {
     expect(() => new PriorityQueue('')).toThrow(
       new TypeError('k must be an integer')
@@ -118,7 +117,7 @@ describe.skip('Priority queue test suite', () => {
       { data: 3, priority: 0 },
       { data: 1, priority: 1 }
     ])
-    rtSize = priorityQueue.enqueue(2, -2)
+    rtSize = priorityQueue.enqueue(3, -2)
     expect(priorityQueue.size).toBe(6)
     expect(priorityQueue.maxSize).toBe(6)
     expect(rtSize).toBe(priorityQueue.size)
@@ -127,12 +126,12 @@ describe.skip('Priority queue test suite', () => {
       { data: 2, priority: 0 },
       { data: 3, priority: -1 },
       { data: 3, priority: 0 },
-      { data: 2, priority: -2 },
+      { data: 3, priority: -2 },
       { data: 1, priority: 1 }
     ])
   })
 
-  it('Verify dequeue() behavior', () => {
+  it('Verify default k dequeue() behavior', () => {
     const priorityQueue = new PriorityQueue()
     priorityQueue.enqueue(1)
     priorityQueue.enqueue(2, -1)
@@ -157,6 +156,64 @@ describe.skip('Priority queue test suite', () => {
     expect(priorityQueue.nodeArray).toStrictEqual([])
   })
 
+  it('Verify k=2 dequeue() behavior', () => {
+    const priorityQueue = new PriorityQueue(2)
+    priorityQueue.enqueue(1)
+    priorityQueue.enqueue(2)
+    priorityQueue.enqueue(3)
+    priorityQueue.enqueue(3, -1)
+    priorityQueue.enqueue(1, 1)
+    priorityQueue.enqueue(3, -2)
+    let rtItem = priorityQueue.dequeue(3)
+    expect(priorityQueue.size).toBe(5)
+    expect(priorityQueue.maxSize).toBe(6)
+    expect(rtItem).toBe(3)
+    expect(priorityQueue.nodeArray).toStrictEqual([
+      { data: 1, priority: 0 },
+      { data: 2, priority: 0 },
+      { data: 3, priority: -1 },
+      { data: 3, priority: 0 },
+      { data: 1, priority: 1 }
+    ])
+    rtItem = priorityQueue.dequeue()
+    expect(priorityQueue.size).toBe(4)
+    expect(priorityQueue.maxSize).toBe(6)
+    expect(rtItem).toBe(1)
+    expect(priorityQueue.nodeArray).toStrictEqual([
+      { data: 2, priority: 0 },
+      { data: 3, priority: -1 },
+      { data: 3, priority: 0 },
+      { data: 1, priority: 1 }
+    ])
+    rtItem = priorityQueue.dequeue(2)
+    expect(priorityQueue.size).toBe(3)
+    expect(priorityQueue.maxSize).toBe(6)
+    expect(rtItem).toBe(3)
+    expect(priorityQueue.nodeArray).toStrictEqual([
+      { data: 2, priority: 0 },
+      { data: 3, priority: -1 },
+      { data: 1, priority: 1 }
+    ])
+    rtItem = priorityQueue.dequeue(2)
+    expect(priorityQueue.size).toBe(2)
+    expect(priorityQueue.maxSize).toBe(6)
+    expect(rtItem).toBe(1)
+    expect(priorityQueue.nodeArray).toStrictEqual([
+      { data: 2, priority: 0 },
+      { data: 3, priority: -1 }
+    ])
+    rtItem = priorityQueue.dequeue(2)
+    expect(priorityQueue.size).toBe(1)
+    expect(priorityQueue.maxSize).toBe(6)
+    expect(rtItem).toBe(2)
+    expect(priorityQueue.nodeArray).toStrictEqual([{ data: 3, priority: -1 }])
+    rtItem = priorityQueue.dequeue()
+    expect(priorityQueue.size).toBe(0)
+    expect(priorityQueue.maxSize).toBe(6)
+    expect(rtItem).toBe(3)
+    expect(priorityQueue.nodeArray).toStrictEqual([])
+  })
+
   it('Verify peekFirst() behavior', () => {
     const priorityQueue = new PriorityQueue()
     priorityQueue.enqueue(1)
@@ -177,6 +234,18 @@ describe.skip('Priority queue test suite', () => {
     expect(priorityQueue.size).toBe(3)
   })
 
+  it('Verify iterator behavior', () => {
+    const priorityQueue = new PriorityQueue()
+    priorityQueue.enqueue(1)
+    priorityQueue.enqueue(2)
+    priorityQueue.enqueue(3)
+    let i = 1
+    for (const value of priorityQueue) {
+      expect(value).toBe(i)
+      ++i
+    }
+  })
+
   it('Verify clear() behavior', () => {
     const priorityQueue = new PriorityQueue()
     priorityQueue.enqueue(1)