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Bit-Savva Mikhail 55b31de6be MT#66037 t: wait for the very ACK instead of draining blind ... A test answering one of SEMS' INVITEs later than T1 finds a timer-A retransmission of it in front of the ACK, and the blind drain took that for the ACK. The next in-dialog re-INVITE then went out right behind our 2xx, got read by another UDP receiver thread first and was rightly 491'd as glare (RFC 3261 14.2). Wait for the ACK with the INVITE's CSeq instead, skipping its retransmissions. The 491 the glare test provokes was never ACKed, so SEMS kept resending it (timer G) and a copy could be read in place of the relayed 200 OK. ACK it (RFC 3261 17.1.1.3). Fake 200s keep being resent for a while even after we have ACKed them, so read final replies by CSeq rather than taking whatever comes next, and answer INFOs relayed by DSM that show up meanwhile (late copies, or ones an earlier read missed). The renegotiation following the fake 200 to collide1 was waited for one second only and then given up on; when it came later, collide2 met it still pending and got 491'd at the dialog layer - the "491 instead of 200" on collide2. SEMS always sends it, so wait for it for real. Change-Id: I0f28734ee384cb3ca9e900051e30c208f053c567 (cherry picked from commit f8b7339c95) (cherry picked from commit 8bfd2aae0a)		3 weeks ago
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b2b	MT#64955 add B2B SBC integration test suite	5 months ago
b2b-sst	MT#65603 option: tests covering parser	4 months ago
basic	MT#62181 fix basic test	1 year ago
register-cache	MT#62181 add testing framework	1 year ago
xdsm	MT#65396 fix B2B updates racing a pending re-INVITE being 491d/dropped	4 months ago
auto-test-helper	MT#62181 add testing framework	1 year ago
b2b-sst.conf	MT#65603 option: tests covering parser	4 months ago
b2b.conf	MT#64955 add B2B SBC integration test suite	5 months ago
basic.conf	MT#62181 add testing framework	1 year ago
register-cache.conf	MT#62181 add testing framework	1 year ago
sems_tester.py	MT#65396 fix B2B updates racing a pending re-INVITE being 491d/dropped	4 months ago
test-b2b.py	MT#65603 option: tests covering parser	4 months ago
test-basic.py	MT#64955 add B2B SBC integration test suite	5 months ago
test-register-cache.py	MT#64955 add B2B SBC integration test suite	5 months ago
test-xdsm-race.py	MT#66037 t: wait for the very ACK instead of draining blind	3 weeks ago
tests-preload.c	MT#62181 add testing framework	1 year ago
xdsm.conf	MT#65396 fix B2B updates racing a pending re-INVITE being 491d/dropped	4 months ago