check method for custom attribute

Question

I'm not sure why the below method always returns false

        // method to check for presence of TestCaseAttribute
    private static bool hasTestCaseAttribute(MemberInfo m)
    {
        foreach (object att in m.GetCustomAttributes(true))
        {
            Console.WriteLine(att.ToString());
            if (att is TestCase.TestCaseAttribute) // also tried if (att is TestCaseAttribute)
            {
                return true;
            }
        }
        return false;

    }

even though the console output looks like this:

TestCase.DateAttribute
TestCase.AuthorAttribute
TestCase.TestCaseAttribute

What am I missing here?

Edit; this approach seems to work...

  private static bool hasTestCaseAttribute(MemberInfo m)
    {
        if (m.GetCustomAttributes(typeof(TestCaseAttribute), true).Any())
        {
            return true;
        }
        else
        {
            return false;
        }
    }

Answer 1

This should do the trick.

    private static bool hasTestCaseAttribute(MemberInfo m)
    {
        return m.GetCustomAttributes(typeof(TestCaseAttribute), true).Any();
    }

Answer 2

public static bool HasCustomAttribute(MethodInfo methodInfo, bool inherit = false)
{
    return methodInfo.GetCustomAttribute<CustomAttribute>(inherit) != null;
}

You could use the function above which is much more succinct than your current approach. sa_ddam's snippet works too.

Answer 3

You can try this:

private static bool hasTestCaseAttribute(MethodInfo method)
{    
    object[] customAttributes = Attribute.GetCustomAttribute(method, 
                                    typeof(TestCase), true) as TestCase;
    if(customAttributes.Length>0 && customAttributes[0]!=null)
    {
        return true;
    }
    else
    {
        return false;
    }
  }