You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: 1721. Swapping Nodes in a Linked List_test.go
    path of file: ./repos/LeetCode-Go/leetcode/1721.Swapping-Nodes-in-a-Linked-List
    
    the code of the file until where you have to start completion: package leetcode

import (
	"fmt"
	"testing"

	"github.com/halfrost/LeetCode-Go/structures"
)

type question2 struct {
	para2
	ans2
}

// para 是参数
// one 代表第一个参数
type para2 struct {
	head []int
	k    int
}

// ans 是答案
// one 代表第一个答案
type ans2 struct {
	one []int
}

func Test_Problem2(t *testing.T) {

	qs := []question2{

		{
			para2{[]int{1, 2, 
    
func Test_Problem2(t *testing.T) {

	qs := []question2{

		{
			para2{[]int{1, 2, 3, 4, 5}, 2},
			ans2{[]int{1, 4, 3, 2, 5}},
		},

		{
			para2{[]int{7, 9, 6, 6, 7, 8, 3, 0, 9, 5}, 5},
			ans2{[]int{7, 9, 6, 6, 8, 7, 3, 0, 9, 5}},
		},

		{
			para2{[]int{1}, 1},
			ans2{[]int{1}},
		},

		{
			para2{[]int{1, 2}, 1},
			ans2{[]int{2, 1}},
		},

		{
			para2{[]int{1, 2, 3}, 2},
			ans2{[]int{1, 2, 3}},
		},
		// 如需多个测试，可以复制上方元素。
	}

	fmt.Printf("------------------------Leetcode Problem 2------------------------\n")

	for _, q := range qs {
		_, p := q.ans2, q.para2
		fmt.Printf("【input】:%v       【output】:%v\n", p, structures.List2Ints(swapNodes(structures.Ints2List(p.head), p.k)))
	}
	fmt.Printf("\n\n\n")
}