Empty( IEnumerable collection, string message,
          params object[] args );
</pre></div>

<p>The following methods are available beginning with NUnit 2.5

<div class="code" style="width: 38em"><pre class="prettyprint">
CollectionAssert.IsOrdered( IEnumerable collection );
CollectionAssert.IsOrdered( IEnumerable collection, string message );
CollectionAssert.IsOrdered( IEnumerable collection, string message,
          params object[] args );

CollectionAssert.IsOrdered( IEnumerable collection, IComparer