rs are provided.

<h3>NullConstraint</h3>

<h4>Action</h4>
<p>Tests that a value is Null.

<h4>Constructor</h4>
<div class="code"><pre class="prettyprint">
NullConstraint()
</pre></div>

<h4>Syntax</h4>
<div class="code"><pre class="prettyprint">
Is.Null
</pre></div>

<h4>Examples of Use</h4>
<div class="code"><pre class="prettyprint">
Assert.That( anObject, Is.Null );
Assert.That( anObject, Is.Not.Null );
</pre></div>

<h3>TrueConstraint</h3>

<h4>Action</h4>
<p>Tests that a value is true.

<h4>Constructor