Is there something like a jasmine `toNotContain` acceptance criteria for tests? : <p><em>Jasmin comes with many functions for checking the expected values for validating specifications and tests.</em></p>

<p>Is there besides </p>

<pre><code>getJasmineRequireObj().toContain = function() { ... };
</code></pre>

<p>somthing like a </p>

<pre><code>getJasmineRequireObj().toNotContain = function() { ... };
</code></pre>

<p>?</p>

<blockquote>
  <p>If not, how to add an extension or plugin to deliver this feature also
  to our community of developers?</p>
</blockquote>
