SINT: Removing invalid test
The implementation of the test that is being removed depends on a server
characteristic that will cause a loop of presence stanzas (which obviously is
bad). A RFC3921-compliant client can send an 'acknowledgement' after receiving
a presence 'subscribed' stanza, in the form of a presence 'subscribe' stanza.
See section 8.2 of RFC3921.
When a server implementation does not ignore this acknowledgement, the domain
of the recipient MUST (RFC6121 section 3.1.3) respond with a 'subscribed' on
behalf of the recipient (which is what the now removed test was verifying).
This can trigger the RFC3921-compliant sender to again receive 'subscribed',
that it again can acknowledge, which causes a loop.
To test RFC6121, the subscription state of the recipient must somehow be
modified to reflect a different state than that of the initiator. I'm not sure
if that is feasible with the SINT framework.
SINT: Add roster tests that are driven by presence stanzas RFC-6121 defines server-sided behavior of the interaction between presence stanzas and rosters.
This commit adds tests for that behavior.
