Success Command

TODO

Given there is no resource at /hello
When following fixture is executed:

<rest:request>
	<rest:get>/hello</rest:get>
	<rest:success>exists</rest:success>
</rest:request>

Then it should produce following output:

/hello ~~exists~~ HTTP/1.1 404 Not Found

Given there is resource at /hello
When following fixture is executed:

<rest:request>
	<rest:get>/hello</rest:get>
	<rest:success>exists</rest:success>
</rest:request>

Then it should produce following output:

/hello exists