title: Chai.js: Object contains/includes
body: <p><a href="http://chaijs.com/api/bdd/" rel="noreferrer">Chai</a> has an <code>include</code> method. I want to test to see if an object contains another object. For example:</p>
  
  <pre><code>var origin = {
    name: "John",
    otherObj: {
      title: "Example"
    }
  }
  </code></pre>
  
  <p>I want to use Chai to test if this object contains the following (which it does)</p>
  
  <pre><code>var match = {
    otherObj: {
      title: "Example"
    }
  }
  </code></pre>
  
  <p>Doing this does not appear to work:</p>
  
  <pre><code>origin.should.include(match)
  </code></pre>