title: Rspec expect assigns shorthand
body: <p>I currently have something like:</p>
  
  <pre><code>it 'assigns @competition' do
    expect(assigns(:competition)).to be_a_new(Competition)
  end
  </code></pre>
  
  <p>Is there a shorter version of this using the <code>it { should ... }</code> type syntax?</p>