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Per the protocol of the example, we first send a greeting to the Dancer app as a JSON document.
Since so much real-world websocket usage is just serialized JSON messages, Mojolicious provides many JSON-over-WebSocket conveniences.
One such convenience is a virtual websocket frame type that takes a data structure and serializes it as JSON before actually sending it as a text frame.</p>
<p>We then wait to get a message in response with <code>message_ok</code>.
In this case, we expect the application to greet us by calling us "browser!".
Oh well, it doesn't know any better!
We can the test that JSON reply with <code>json_message_is</code> (like <code>json_is</code> above but for websocket messages).
Finally we close the connection, testing that it closes correctly.</p>
<p>Testing WebSockets, even from a Dancer application, is easy!</p>
<h2><a name="conclusion"></a>Conclusion</h2>

<p>Although there are some great testing options in the PSGI space, Test::Mojo has lots of benefits for Dancer and PSGI users.
By using Test::Mojo::Role::PSGI or by running against a locally-bound server, Test::Mojo can be a tool in the toolbox of any PSGI developer.</p>
<h2><a name="author"></a>AUTHOR</h2>

<p>Joel Berger (<a href="https://twitter.com/joelaberger">@joelaberger</a>) has Ph.D. in Physics from the University of Illinois at Chicago. 
He is an avid Perl user, <a href="https://metacpan.org/author/JBERGER">author</a>, and is a member of the Mojolicious Core Team.</p>
<h2><a name="copyright"></a>COPYRIGHT</h2>

<p>Copyright (c) 2018 Joel Berger</p>
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