From some time you can find BOSH support on TSUNG, but only on your main branch in:
https://github.com/processone/tsung/blob/master/src/tsung/ts_bosh.erl
To enable it in the script, just change the type of connection to your servers to "bosh":
<server host="my_bosh_server" port="5280" type="bosh"></server>
Just make sure your XMPP server is listening on BOSH connections on "http-bind":
http:
Alternatively, you can use "bosh_ssl" instead of "bosh" if you want to add SSL to your connections. In any case, yes, it is completely undocumented.
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