How to initialize a StringBuilder to null [closed]

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Hi all I am facing a problem with StringBuilder. While automating, I will assign the value of testfailed to a StringBuilder as

private StringBuilder testFailed = new StringBuilder();

public void Test1()
{
    testFailed = SomeTest();
}

public void Test2()
{
    testFailed = null;

    //testFailed = testFailed.Clear();
    //testFailed = new StringBuilder();

    testFailed = someTest1();
}

When ever first test fails, the testFailed StringBuilder will append the next test result or if test passes then testFailed string will display the t开发者_运维知识库estFailed b result value. As I used commented methods and tried it didn't work for that. Let me know any other ways. Thanks in advance.

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I am not sure what you are trying to achieve from this. But I am guessing you want to aggregate the errors from various tests that you are running. If thats the case you dont need to reassign the StringBuilder class just use a single instance and use Appends on it and your test will return string as a result.

Eg.

private StringBuilder testFailed;

public void Test1()
{
    testFailed = new StringBuilder();
    testFailed.AppendLine(SomeTest());
}

public void Test2()
{ 
    testFailed = new StringBuilder();
    testFailed.AppendLine(someTest1());
}

I dont know why you are taking this approach, but to each his own. I would also suggest you take a look at NUnit.

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Please don't use null as a value - it's a bad idea. I'd use a list of strings for what you are doing.