title: Case insensitive comparison in Contains under nUnit
body: <p>I'm trying to assert that a list contains a certain string. Since I'd need the condition to be evaluated case insensitively, I used a workaround (something along <a href="http://www.dotnetthoughts.net/how-to-make-string-contains-case-insensitive/" rel="noreferrer">this blog post</a>).</p>
  
  <p>However, I'd like to know why there seems not to be a way to make the <em>Assert.Contains</em> method perform the comparison without regard of case sensitivity. Or is there a way to do that? (When I googled it, I only got hits on constraints for the <em>Assert.That</em> method on the official page for nUnit.)</p>