title: NUnit TestCase Expected Messages
body: <p>So I want to be able to specify different Exception messages in the <code>TestCase</code> but have no idea how that is done</p>
  
  <p>This is the original</p>
  
  <pre><code>[Test]
  [ExpectedException(typeof(SystemException), ExpectedMessage = "Holiday cannot start or end on a weekend or non-working day")]
  
  public void AddHolidays_StartsInvlaid()
  {}
  </code></pre>
  
  <p>This is it with TestCase</p>
  
  <pre><code>[TestCase("27/04/2025", "28/05/2025", "FullDay", "FullDay", ExpectedMessage = "Holiday cannot start or end on a weekend or non-working day")]
  [ExpectedException(typeof(SystemException), ExpectedMessage)]
  
  public void AddHolidays_Exceptions(string dateFrom, string dateTo, string fromPeriod, string toPeriod)
  {}
  </code></pre>
  
  <p>The method works fine but I just want to be able to specify the exception message with NUnit <code>TestCase</code></p>