title: How do I query the text of an element (Component) using WicketTester?
body: <p>Rather than specifying the id-path for components to click in WicketTester I'd like to find the link with a specific text. </p>
  
  <p>I can use <code>MarkupContainer.visitChildren</code> to run through the tree, but can I get the actual rendered component text for each leaf - something like <code>.innerHTML</code>?</p>