The file format of the test suite is a very simple and extendable format. All
data for a single test case resides in a single ASCII file. Labels mark the
beginning and the end of all sections. Each label must be written in its own
line and is resembling XML/HTML.

 Each file is split up in three main sections: reply, client and verify. The
reply section is used for the server to know what to send as a reply for the
requests curl sends, the client section defines how the client should behave
while the verify section defines how to verify that the data stored after a
command has been run ended up correctly.

 Each main section has a number of available subsections that can be
specified, that will be checked/used if specified. This document includes all
the subsections currently supported.

<reply>
<data>
data to sent to the client on its request
</data>
<datacheck>
if the data is sent but this is what should be checked afterwards
</datacheck>
<size>
number to return on a ftp SIZE command
</size>
</reply>

<client>
<name>
test case description
</name>
<command>
command line to run, there's a bunch of %variables that get replaced
accordingly. more about them elsewhere
</command>
<file name="log/filename">
this creates the named file with this content before the test case is run
which is useful if the test case needs a file to act on.
</file>
</client>

<verify>
<errorcode>
numerical error code curl is supposed to return
</errorcode>
<protocol>
the protocol dump curl should transmit
</protocol>
<upload>
the contents of the upload data curl should have sent
</upload>
</verify>