在 NUnit 中更改 TestName

Question

I am trying to change the testcase name as below:

    public static string getTestName()
    {
        return testName;
    }

    [TestCase(TestName = nameof(getTestName))]
    public void MyTest()
    {
        
    }

This is updating my testcase name to "getTestName" instead of executing getTestName function and using it's return value.

What am I missing here?

Answer 1

According to Microsoft:

A nameof expression produces the name of a variable, type, or member as the string constant:

So nameof(getTestName) is an expression that evaluates to the name of the getTestName method. The result of this expression is the string "getTestName" . This expression does NOT invoke the getTestName method, as you seem to think it should.

You need to pass a constant to the TestCase attribute:

public class MyTests
{
    [TestCase(TestName = "One Option")]
    public void OneOption()
    {
    }

    private const string TestName = "Another Option";
    [TestCase(TestName = TestName)]
    public void AnotherOption()
    {
    }
    
    // This will evaluate to "MyTests", which is the name of the class passed to the nameof expression.
    [TestCase(TestName = nameof(MyTests))]
    public void YetAnotherOption()
    {
    }
}