hello-algo/zh-hant/codes/go/chapter_stack_and_queue/queue_test.go
Yudong Jin c9041c5c5e
Bug fixes and improvements (#1472)
* preorder, inorder, postorder -> pre-order, in-order, post-order

* Bug fixes

* Bug fixes

* Update what_is_dsa.md

* Sync zh and zh-hant versions

* Sync zh and zh-hant versions.

* Update performance_evaluation.md and time_complexity.md

* Add @khoaxuantu to the landing page.

* Sync zh and zh-hant versions

* Add @ khoaxuantu to the landing page of zh-hant and en versions.

* Sync zh and zh-hant versions.

* Small improvements

* @issue :  #1450 (#1453)

Fix writing "obsecure" to "obscure"

Co-authored-by: Gaya <kheliligaya@gmail.com>

* Update the definition of "adaptive sorting".

* Update n_queens_problem.md

* Sync zh, zh-hant, and en versions.

---------

Co-authored-by: Gaya-Khelili <50716339+Gaya-Khelili@users.noreply.github.com>
Co-authored-by: Gaya <kheliligaya@gmail.com>
2024-07-30 16:56:59 +08:00

146 lines
3 KiB
Go

// File: queue_test.go
// Created Time: 2022-11-28
// Author: Reanon (793584285@qq.com)
package chapter_stack_and_queue
import (
"container/list"
"fmt"
"testing"
. "github.com/krahets/hello-algo/pkg"
)
func TestQueue(t *testing.T) {
/* 初始化佇列 */
// 在 Go 中,將 list 作為佇列來使用
queue := list.New()
/* 元素入列 */
queue.PushBack(1)
queue.PushBack(3)
queue.PushBack(2)
queue.PushBack(5)
queue.PushBack(4)
fmt.Print("佇列 queue = ")
PrintList(queue)
/* 訪問佇列首元素 */
peek := queue.Front()
fmt.Println("佇列首元素 peek =", peek.Value)
/* 元素出列 */
pop := queue.Front()
queue.Remove(pop)
fmt.Print("出列元素 pop = ", pop.Value, ",出列後 queue = ")
PrintList(queue)
/* 獲取佇列的長度 */
size := queue.Len()
fmt.Println("佇列長度 size =", size)
/* 判斷佇列是否為空 */
isEmpty := queue.Len() == 0
fmt.Println("佇列是否為空 =", isEmpty)
}
func TestArrayQueue(t *testing.T) {
// 初始化佇列,使用佇列的通用介面
capacity := 10
queue := newArrayQueue(capacity)
if queue.pop() != nil {
t.Errorf("want:%v,got:%v", nil, queue.pop())
}
// 元素入列
queue.push(1)
queue.push(3)
queue.push(2)
queue.push(5)
queue.push(4)
fmt.Print("佇列 queue = ")
PrintSlice(queue.toSlice())
// 訪問佇列首元素
peek := queue.peek()
fmt.Println("佇列首元素 peek =", peek)
// 元素出列
pop := queue.pop()
fmt.Print("出列元素 pop = ", pop, ", 出列後 queue = ")
PrintSlice(queue.toSlice())
// 獲取隊的長度
size := queue.size()
fmt.Println("隊的長度 size =", size)
// 判斷是否為空
isEmpty := queue.isEmpty()
fmt.Println("隊是否為空 =", isEmpty)
/* 測試環形陣列 */
for i := 0; i < 10; i++ {
queue.push(i)
queue.pop()
fmt.Print("第", i, "輪入列 + 出列後 queue =")
PrintSlice(queue.toSlice())
}
}
func TestLinkedListQueue(t *testing.T) {
// 初始化隊
queue := newLinkedListQueue()
// 元素入列
queue.push(1)
queue.push(3)
queue.push(2)
queue.push(5)
queue.push(4)
fmt.Print("佇列 queue = ")
PrintList(queue.toList())
// 訪問佇列首元素
peek := queue.peek()
fmt.Println("佇列首元素 peek =", peek)
// 元素出列
pop := queue.pop()
fmt.Print("出列元素 pop = ", pop, ", 出列後 queue = ")
PrintList(queue.toList())
// 獲取隊的長度
size := queue.size()
fmt.Println("隊的長度 size =", size)
// 判斷是否為空
isEmpty := queue.isEmpty()
fmt.Println("隊是否為空 =", isEmpty)
}
// BenchmarkArrayQueue 8 ns/op in Mac M1 Pro
func BenchmarkArrayQueue(b *testing.B) {
capacity := 1000
queue := newArrayQueue(capacity)
// use b.N for looping
for i := 0; i < b.N; i++ {
queue.push(777)
}
for i := 0; i < b.N; i++ {
queue.pop()
}
}
// BenchmarkLinkedQueue 62.66 ns/op in Mac M1 Pro
func BenchmarkLinkedQueue(b *testing.B) {
queue := newLinkedListQueue()
// use b.N for looping
for i := 0; i < b.N; i++ {
queue.push(777)
}
for i := 0; i < b.N; i++ {
queue.pop()
}
}