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Update csharp array to unify code style,and create its unit test.

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This commit is contained in:
ming 2022-12-16 15:53:26 +08:00
parent 5c999939f6
commit aa868cfa3d
2 changed files with 82 additions and 47 deletions
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55
codes/csharp/chapter_array_and_linkedlist/Array.cs
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@ -1,14 +1,12 @@
/*
* File: Array.cs
* Created Time: 2022-12-14
* Author: mingXta (1195669834@qq.com)
*/
// File: Array.cs
// Created Time: 2022-12-14
// Author: mingXta (1195669834@qq.com)
namespace hello_algo.chapter_array_and_linkedlist
{
public class Array
{
/* 随机返回一个数组元素 */
//随机返回一个数组元素
public static int RandomAccess(int[] nums)
{
Random random = new();
@ -17,7 +15,7 @@ namespace hello_algo.chapter_array_and_linkedlist
return randomNum;
}
/* 扩展数组长度 */
//扩展数组长度
public static int[] Extend(int[] nums, int enlarge)
{
// 初始化一个扩展长度后的数组
@ -31,7 +29,7 @@ namespace hello_algo.chapter_array_and_linkedlist
return res;
}
/* 在数组的索引 index 处插入元素 num */
//在数组的索引 index 处插入元素 num
public static void Insert(int[] nums, int num, int index)
{
// 把索引 index 以及之后的所有元素向后移动一位
@ -43,7 +41,7 @@ namespace hello_algo.chapter_array_and_linkedlist
nums[index] = num;
}
/* 删除索引 index 处元素 */
//删除索引 index 处元素
public static void Remove(int[] nums, int index)
{
// 把索引 index 之后的所有元素向前移动一位
@ -53,7 +51,7 @@ namespace hello_algo.chapter_array_and_linkedlist
}
}
/* 遍历数组 */
//遍历数组
public static void Traverse(int[] nums)
{
int count = 0;
@ -69,7 +67,7 @@ namespace hello_algo.chapter_array_and_linkedlist
}
}
/* 在数组中查找指定元素 */
//在数组中查找指定元素
public static int Find(int[] nums, int target)
{
for (int i = 0; i < nums.Length; i++)
@ -80,43 +78,10 @@ namespace hello_algo.chapter_array_and_linkedlist
return -1;
}
/*辅助函数,数组转字符串 */
//辅助函数,数组转字符串
public static string ToString(int[] nums)
{
return string.Join(",", nums);
}
/* Driver Code */
public static void Main()
{
/* 初始化数组 */
int[] arr = new int[5];
Console.WriteLine("数组 arr = " + ToString(arr));
int[] nums = { 1, 3, 2, 5, 4 };
Console.WriteLine("数组 nums = " + ToString(nums));
/* 随机访问 */
int randomNum = RandomAccess(nums);
Console.WriteLine("在 nums 中获取随机元素 " + randomNum);
/* 长度扩展 */
nums = Extend(nums, 3);
Console.WriteLine("将数组长度扩展至 8 ，得到 nums = " + ToString(nums));
/* 插入元素 */
Insert(nums, 6, 3);
Console.WriteLine("在索引 3 处插入数字 6 ，得到 nums = " + ToString(nums));
/* 删除元素 */
Remove(nums, 2);
Console.WriteLine("删除索引 2 处的元素，得到 nums = " + ToString(nums));
/* 遍历数组 */
Traverse(nums);
/* 查找元素 */
int index = Find(nums, 3);
Console.WriteLine("在 nums 中查找元素 3 ，得到索引 = " + index);
}
}
}

70
codes/csharp/test/chapter_array_and_linkedlist/ArrayTest.cs Normal file
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@ -0,0 +1,70 @@
// File: ArrayTest.cs
// Created Time: 2022-12-16
// Author: mingXta (1195669834@qq.com)
using NUnit.Framework;
using Array = hello_algo.chapter_array_and_linkedlist.Array;
namespace hello_algo.Test.chapter_array_and_linkedlist
{
[TestFixture]
internal class ArrayTest
{
private int[] nums;
[SetUp]
public void setup()
{
//初始化数组
nums = new int[] { 1, 3, 2, 5, 4 };
}
[Test]
public void TestRandomAccess()
{
//随机访问
int randomNum = Array.RandomAccess(nums);
Console.WriteLine($"在 nums 中获取随机元素 {randomNum}");
Assert.Contains(randomNum, nums);
}
[Test]
public void TestExtend()
{
//长度扩展
int[] target = { 1, 3, 2, 5, 4, 0, 0, 0 };
nums = Array.Extend(nums, 3);
Console.WriteLine($"将数组长度扩展至 8 ，得到 nums = {Array.ToString(nums)}");
Assert.AreEqual(target, nums);
}
[Test]
public void TestInsert()
{
//插入元素
int[] target = { 1, 3, 2, 6, 5 };
Array.Insert(nums, 6, 3);
Console.WriteLine($"在索引 3 处插入数字 6 ，得到 nums = {Array.ToString(nums)}");
Assert.AreEqual(target, nums);
}
[Test]
public void TestRemove()
{
//删除元素
int[] target = { 1, 3, 5, 4, 4 };
Array.Remove(nums, 2);
Console.WriteLine($"删除索引 2 处的元素，得到 nums = {Array.ToString(nums)}");
Assert.AreEqual(target, nums);
}
[Test]
public void TestFind()
{
//查找元素
int index = Array.Find(nums, 3);
Console.WriteLine("在 nums 中查找元素 3 , 得到索引 = " + index);
Assert.AreEqual(1, index);
}
}
}