测试执行超过超时周期 [英] Test exceeded execution timeout period

问题描述

我的main.cs代码：

My main.cs code:

 public string Generate(int length)
 {
     char[] chars = "$%#@!*abcdefghijklmnopqrstuvwxyz1234567890?;:ABCDEFGHIJKLMNOPQRSTUVWXYZ^&".ToCharArray();
     string password = string.Empty;
     Random random = new Random();

     for (int i = 0; i < length; i++)
     {
         int x = random.Next(1, chars.Length);

         if (!password.Contains(chars.GetValue(x).ToString()))
             password += chars.GetValue(x);
         else
             i--;
     }
     return password;
 }

我有一个测试代码

[TestMethod]
[Timeout(1000)]
public void RenderingPasswordShouldHaveMaximumSize()
{
    var amountOfCharacters = Int32.MaxValue;
    var generator = new PasswordGenerator();
    var target = generator.Generate(amountOfCharacters);

    Assert.Fail("This method should throw an exception if you try to create a password with too many characters");
}

但它给我以下错误：

消息：Test'RenderingPasswordShouldHaveMaximumSize'超出执行超时时间

Message: Test 'RenderingPasswordShouldHaveMaximumSize' exceeded execution timeout period

我这个？我的密码最大为74个。

Can someone help me with this? My password needs to have a max size of 74.

推荐答案

我刚刚注意到你确实需要你的测试时间，忽略部分 Int32.MaxValue 。

I've just noticed you actually want your test to take a long time, ignore the part about Int32.MaxValue.

你的循环有点奇怪，你递减迭代器为了尝试和利用所有的字母，但这可能会导致问题。

Your loop is a little strange, you're decrementing the iterator in order to try and utilise all of the letters, but that can cause problems. It's not a case of it taking too long, but of it not really generating a password properly.

我会修复您的版本 像这样：

static string Generate(int length)
{
    // also, seed your random so you don't get the same password
    Random random = new Random((int)DateTime.Now.Ticks);

    char[] chars = "$%#@!*abcdefghijklmnopqrstuvwxyz1234567890?;:ABCDEFGHIJKLMNOPQRSTUVWXYZ^&".ToCharArray();
    string password = string.Empty;

    for (int i = 0; i < chars.Length; i++)
    {
        int x = random.Next(0, chars.Length);

        if (!password.Contains(chars.GetValue(x).ToString()))
            password += chars.GetValue(x);
        else
            i--;
    }

    if (length < password.Length) password = password.Substring(0, length);
    return password;
}

我已经测试过了，它的工作原理：

I've tested this and it works:

测试代码：

Debug.WriteLine(Generate(5));
Thread.Sleep(50);

Debug.WriteLine(Generate(10));
Thread.Sleep(50);

Debug.WriteLine(Generate(20));
Thread.Sleep(50);

Debug.WriteLine(Generate(30));
Thread.Sleep(50);

Debug.WriteLine(Generate(40));
Thread.Sleep(50);

Debug.WriteLine(Generate(60));
Thread.Sleep(50);

结果：

SDxF0
i8ZLhm1gxn
@0Ldn7I&1:Kg2x3SYE;m
U?5uO%N4hkpq1*y;9SRVaer^Eij:bT
nvL;E3#D1MQgTicSdojHOwz:VFk2x&94a*PZ@X80
cSm39n:%1sL*lk2B?yVDTPZCA0vGb@udjeW5KoUw6qRNxY^pazH$JXiQ;tFg    

另外，请记住，在添加字符到密码的方式，你使它使用 char [] 但没有重复。这意味着您的密码的最大长度等于您的 char [] 的长度。

Also, bear in mind that the way you are adding characters to the password, you're making it so that it utilises all characters in the char[] but has no repeats. What this means is that the max length of your password is equal to the length of your char[].

我建议这样：

static string Generate(int length)
{
    Random random = new Random((int)DateTime.Now.Ticks);
    StringBuilder sb = new StringBuilder();

    for (int i = 0; i < length; i++)
    {
        int x = random.Next(33, 123);
        sb.Append((char)x);
    }

    return sb.ToString();
}

这给出相同的结果，但也可以处理更长的长度，例如200 ：

Which gives the same results, but can also handle longer lengths, such as 200:

t5[5l
WoEZG;8^9<
6(4Q*Y7k>`?ohte6F^pe
DVb\5l^JMKc`q&[#$U4Kq^\OW`JrRi
#iQSq0\WRoDe<]k36nOhNOb-#"Zt!cK8iaR.I>VF
1<%^"B)6bZhWEiazmfmO7Vv*Rw]TbKV+GRJUc%k23Lq/HC.I6Eha6!5V@v-&
jOnV_`(Cf$I\kFr/%%/loG"bx9lV1E?`[A"y1)pF5tA".x?**(E/>kzCN-XGnL2B`c!JEtxw0cXu'zTztcM*z0CkBYK%LIRcbz<Fxo`0*HzU4&=NTXM,z)CP@1)fJtKa2o3'_/#&#=zR1iW<<wLnwFdYXg&hgta0x:C?m6jEVH*])k@QTgKMIXdg,UJr*59)VkUrG8J&

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