AT_BANNER([reconnect library])
+m4_define([__RECONNECT_CHECK],
+ [AT_SETUP([$1])
+ $2
+ AT_KEYWORDS([reconnect])
+ AT_DATA([input], [$3])
+ AT_CHECK([$4], [0], [$5])
+ AT_CLEANUP])
+
+m4_define([RECONNECT_CHECK],
+ [__RECONNECT_CHECK(
+ [$1 - C],
+ [],
+ [$2],
+ [test-reconnect < input],
+ [$3])
+ __RECONNECT_CHECK(
+ [$1 - Python],
+ [AT_SKIP_IF([test $HAVE_PYTHON = no])],
+ [$2],
+ [$PYTHON $srcdir/test-reconnect.py < input],
+ [$3])])
+
######################################################################
-AT_SETUP([nothing happens if not enabled])
-AT_KEYWORDS([reconnect])
-AT_DATA([input], [run
+RECONNECT_CHECK([nothing happens if not enabled],
+ [run
timeout
-])
-OVS_CHECK_LCOV([test-reconnect < input], [0],
+],
[### t=1000 ###
run
timeout
no timeout
])
-AT_CLEANUP
######################################################################
-AT_SETUP([quick connect, idle disconnect])
-AT_KEYWORDS([reconnect])
-AT_DATA([input], [enable
+RECONNECT_CHECK([quick connect, idle disconnect],
+ [enable
# Connection succeeds.
run
timeout
run
disconnected
-])
-OVS_CHECK_LCOV([test-reconnect < input], [0],
+],
[### t=1000 ###
enable
in BACKOFF for 0 ms (0 ms backoff)
should connect
connected
in ACTIVE for 0 ms (0 ms backoff)
+ created 1000, last activity 1000, last connected 1000
1 successful connections out of 1 attempts, seqno 1
- connected (0 ms), total 0 ms connected
+ connected
+ last connected 0 ms ago, connected 0 ms total
# Send inactivity probe.
timeout
### t=6000 ###
in ACTIVE for 5000 ms (0 ms backoff)
- connected (5000 ms), total 5000 ms connected
run
should send probe
in IDLE for 0 ms (0 ms backoff)
### t=11000 ###
in IDLE for 5000 ms (0 ms backoff)
- connected (10000 ms), total 10000 ms connected
run
should disconnect
disconnected
in BACKOFF for 0 ms (1000 ms backoff)
1 successful connections out of 1 attempts, seqno 2
- not connected (0 ms), total 10000 ms connected
+ disconnected
+ disconnected at 11000 ms (0 ms ago)
])
-AT_CLEANUP
######################################################################
-AT_SETUP([slow connect, idle disconnect])
-AT_KEYWORDS([reconnect])
-AT_DATA([input], [enable
+RECONNECT_CHECK([slow connect, idle disconnect],
+ [enable
# Start connecting.
run
timeout
run
disconnected
-])
-OVS_CHECK_LCOV([test-reconnect < input], [0],
+],
[### t=1000 ###
enable
in BACKOFF for 0 ms (0 ms backoff)
run
should connect
connecting
- in CONNECT_IN_PROGRESS for 0 ms (0 ms backoff)
+ in CONNECTING for 0 ms (0 ms backoff)
# Connect after 500 ms.
advance 500
### t=1500 ###
- in CONNECT_IN_PROGRESS for 500 ms (0 ms backoff)
+ in CONNECTING for 500 ms (0 ms backoff)
run
connected
in ACTIVE for 0 ms (0 ms backoff)
- created 1000, last received 1000, last connected 1500
+ created 1000, last activity 1000, last connected 1500
1 successful connections out of 1 attempts, seqno 1
- connected (0 ms), total 0 ms connected
+ connected
+ last connected 0 ms ago, connected 0 ms total
# Send inactivity probe.
timeout
### t=6500 ###
in ACTIVE for 5000 ms (0 ms backoff)
- connected (5000 ms), total 5000 ms connected
run
should send probe
in IDLE for 0 ms (0 ms backoff)
### t=11500 ###
in IDLE for 5000 ms (0 ms backoff)
- connected (10000 ms), total 10000 ms connected
run
should disconnect
disconnected
in BACKOFF for 0 ms (1000 ms backoff)
1 successful connections out of 1 attempts, seqno 2
- not connected (0 ms), total 10000 ms connected
+ disconnected
+ disconnected at 11500 ms (0 ms ago)
])
-AT_CLEANUP
######################################################################
-AT_SETUP([connect backs off])
-AT_KEYWORDS([reconnect])
-AT_DATA([input], [enable
+RECONNECT_CHECK([connect backs off],
+ [enable
# First connection attempt fails after 1000 ms.
run
timeout
run
connect-failed
-])
-OVS_CHECK_LCOV([test-reconnect < input], [0],
+],
[### t=1000 ###
enable
in BACKOFF for 0 ms (0 ms backoff)
run
should connect
connecting
- in CONNECT_IN_PROGRESS for 0 ms (0 ms backoff)
+ in CONNECTING for 0 ms (0 ms backoff)
run
timeout
advance 1000 ms
### t=2000 ###
- in CONNECT_IN_PROGRESS for 1000 ms (0 ms backoff)
+ in CONNECTING for 1000 ms (0 ms backoff)
run
should disconnect
connect-failed
# Second connection attempt fails after 1000 ms.
connecting
- in CONNECT_IN_PROGRESS for 0 ms (1000 ms backoff)
+ in CONNECTING for 0 ms (1000 ms backoff)
timeout
advance 1000 ms
### t=4000 ###
- in CONNECT_IN_PROGRESS for 1000 ms (1000 ms backoff)
+ in CONNECTING for 1000 ms (1000 ms backoff)
run
should disconnect
connect-failed
# Third connection attempt fails after 2000 ms.
connecting
- in CONNECT_IN_PROGRESS for 0 ms (2000 ms backoff)
+ in CONNECTING for 0 ms (2000 ms backoff)
timeout
advance 2000 ms
### t=8000 ###
- in CONNECT_IN_PROGRESS for 2000 ms (2000 ms backoff)
+ in CONNECTING for 2000 ms (2000 ms backoff)
run
should disconnect
connect-failed
# Third connection attempt fails after 4000 ms.
connecting
- in CONNECT_IN_PROGRESS for 0 ms (4000 ms backoff)
+ in CONNECTING for 0 ms (4000 ms backoff)
timeout
advance 4000 ms
### t=16000 ###
- in CONNECT_IN_PROGRESS for 4000 ms (4000 ms backoff)
+ in CONNECTING for 4000 ms (4000 ms backoff)
run
should disconnect
connect-failed
# Third connection attempt fails after 8000 ms.
connecting
- in CONNECT_IN_PROGRESS for 0 ms (8000 ms backoff)
+ in CONNECTING for 0 ms (8000 ms backoff)
timeout
advance 8000 ms
### t=32000 ###
- in CONNECT_IN_PROGRESS for 8000 ms (8000 ms backoff)
+ in CONNECTING for 8000 ms (8000 ms backoff)
run
should disconnect
connect-failed
# Fourth connection attempt fails after 8000 ms.
connecting
- in CONNECT_IN_PROGRESS for 0 ms (8000 ms backoff)
+ in CONNECTING for 0 ms (8000 ms backoff)
timeout
advance 8000 ms
### t=48000 ###
- in CONNECT_IN_PROGRESS for 8000 ms (8000 ms backoff)
+ in CONNECTING for 8000 ms (8000 ms backoff)
run
should disconnect
connect-failed
in BACKOFF for 0 ms (8000 ms backoff)
0 successful connections out of 6 attempts, seqno 0
])
-AT_CLEANUP
######################################################################
-AT_SETUP([connections with no data preserve backoff])
-AT_KEYWORDS([reconnect])
-AT_DATA([input], [enable
+RECONNECT_CHECK([connections with no data preserve backoff],
+ [enable
# First connect, then idle timeout kills connection.
run
should connect
connected
in ACTIVE for 0 ms (0 ms backoff)
+ created 1000, last activity 1000, last connected 1000
1 successful connections out of 1 attempts, seqno 1
- connected (0 ms), total 0 ms connected
+ connected
+ last connected 0 ms ago, connected 0 ms total
timeout
advance 5000 ms
### t=6000 ###
in ACTIVE for 5000 ms (0 ms backoff)
- connected (5000 ms), total 5000 ms connected
run
should send probe
in IDLE for 0 ms (0 ms backoff)
### t=11000 ###
in IDLE for 5000 ms (0 ms backoff)
- connected (10000 ms), total 10000 ms connected
run
should disconnect
disconnected
in BACKOFF for 0 ms (1000 ms backoff)
1 successful connections out of 1 attempts, seqno 2
- not connected (0 ms), total 10000 ms connected
+ disconnected
+ disconnected at 11000 ms (0 ms ago)
# Back off for 1000 ms.
timeout
### t=12000 ###
in BACKOFF for 1000 ms (1000 ms backoff)
+ last connected 11000 ms ago, connected 10000 ms total
run
should connect
should connect
connected
in ACTIVE for 0 ms (1000 ms backoff)
- created 1000, last received 1000, last connected 12000
+ created 1000, last activity 1000, last connected 12000
2 successful connections out of 2 attempts, seqno 3
- connected (0 ms), total 10000 ms connected
+ connected
+ last connected 0 ms ago, connected 10000 ms total
timeout
advance 5000 ms
### t=17000 ###
in ACTIVE for 5000 ms (1000 ms backoff)
- connected (5000 ms), total 15000 ms connected
run
should send probe
in IDLE for 0 ms (1000 ms backoff)
### t=22000 ###
in IDLE for 5000 ms (1000 ms backoff)
- connected (10000 ms), total 20000 ms connected
run
should disconnect
disconnected
in BACKOFF for 0 ms (2000 ms backoff)
2 successful connections out of 2 attempts, seqno 4
- not connected (0 ms), total 20000 ms connected
+ disconnected
+ disconnected at 22000 ms (0 ms ago)
# Back off for 2000 ms.
timeout
### t=24000 ###
in BACKOFF for 2000 ms (2000 ms backoff)
+ last connected 12000 ms ago, connected 20000 ms total
run
should connect
should connect
connected
in ACTIVE for 0 ms (2000 ms backoff)
- created 1000, last received 1000, last connected 24000
+ created 1000, last activity 1000, last connected 24000
3 successful connections out of 3 attempts, seqno 5
- connected (0 ms), total 20000 ms connected
+ connected
+ last connected 0 ms ago, connected 20000 ms total
timeout
advance 5000 ms
### t=29000 ###
in ACTIVE for 5000 ms (2000 ms backoff)
- connected (5000 ms), total 25000 ms connected
run
should send probe
in IDLE for 0 ms (2000 ms backoff)
### t=34000 ###
in IDLE for 5000 ms (2000 ms backoff)
- connected (10000 ms), total 30000 ms connected
run
should disconnect
disconnected
in BACKOFF for 0 ms (4000 ms backoff)
3 successful connections out of 3 attempts, seqno 6
- not connected (0 ms), total 30000 ms connected
+ disconnected
+ disconnected at 34000 ms (0 ms ago)
# Back off for 4000 ms.
timeout
### t=38000 ###
in BACKOFF for 4000 ms (4000 ms backoff)
-
+ last connected 14000 ms ago, connected 30000 ms total
])
-AT_CLEANUP
######################################################################
-AT_SETUP([brief connection preserves backoff])
-AT_KEYWORDS([reconnect])
-AT_DATA([input], [enable
+RECONNECT_CHECK([brief connection preserves backoff],
+ [enable
# First connection attempt fails after 1000 ms.
run
# Back off for 4000 ms.
timeout
run
-])
-OVS_CHECK_LCOV([test-reconnect < input], [0],
- [### t=1000 ###
+], [### t=1000 ###
enable
in BACKOFF for 0 ms (0 ms backoff)
run
should connect
connecting
- in CONNECT_IN_PROGRESS for 0 ms (0 ms backoff)
+ in CONNECTING for 0 ms (0 ms backoff)
run
timeout
advance 1000 ms
### t=2000 ###
- in CONNECT_IN_PROGRESS for 1000 ms (0 ms backoff)
+ in CONNECTING for 1000 ms (0 ms backoff)
run
should disconnect
connect-failed
# Second connection attempt fails after 1000 ms.
connecting
- in CONNECT_IN_PROGRESS for 0 ms (1000 ms backoff)
+ in CONNECTING for 0 ms (1000 ms backoff)
timeout
advance 1000 ms
### t=4000 ###
- in CONNECT_IN_PROGRESS for 1000 ms (1000 ms backoff)
+ in CONNECTING for 1000 ms (1000 ms backoff)
run
should disconnect
connect-failed
# Third connection attempt succeeds after 500 ms.
connecting
- in CONNECT_IN_PROGRESS for 0 ms (2000 ms backoff)
+ in CONNECTING for 0 ms (2000 ms backoff)
advance 500
### t=6500 ###
- in CONNECT_IN_PROGRESS for 500 ms (2000 ms backoff)
+ in CONNECTING for 500 ms (2000 ms backoff)
run
connected
in ACTIVE for 0 ms (2000 ms backoff)
- created 1000, last received 1000, last connected 6500
+ created 1000, last activity 1000, last connected 6500
1 successful connections out of 3 attempts, seqno 1
- connected (0 ms), total 0 ms connected
+ connected
+ last connected 0 ms ago, connected 0 ms total
# Connection drops after another 250 ms.
advance 250
### t=6750 ###
in ACTIVE for 250 ms (2000 ms backoff)
- connected (250 ms), total 250 ms connected
disconnected
in BACKOFF for 0 ms (4000 ms backoff)
1 successful connections out of 3 attempts, seqno 2
- not connected (0 ms), total 250 ms connected
+ disconnected
+ disconnected at 6750 ms (0 ms ago)
run
# Back off for 4000 ms.
### t=10750 ###
in BACKOFF for 4000 ms (4000 ms backoff)
+ last connected 4250 ms ago, connected 250 ms total
run
should connect
])
-AT_CLEANUP
######################################################################
-AT_SETUP([brief connection with data preserves backoff])
-AT_KEYWORDS([reconnect])
-AT_DATA([input], [enable
+RECONNECT_CHECK([brief connection with data preserves backoff],
+ [enable
# First connection attempt fails after 1000 ms.
run
# Connection receives 3 chunks of data spaced 250 ms apart.
advance 250
run
-received
+activity
advance 250
run
-received
+activity
advance 250
run
-received
+activity
# Connection drops.
disconnected
# Back off for 4000 ms.
timeout
run
-])
-OVS_CHECK_LCOV([test-reconnect < input], [0],
+],
[### t=1000 ###
enable
in BACKOFF for 0 ms (0 ms backoff)
run
should connect
connecting
- in CONNECT_IN_PROGRESS for 0 ms (0 ms backoff)
+ in CONNECTING for 0 ms (0 ms backoff)
run
timeout
advance 1000 ms
### t=2000 ###
- in CONNECT_IN_PROGRESS for 1000 ms (0 ms backoff)
+ in CONNECTING for 1000 ms (0 ms backoff)
run
should disconnect
connect-failed
# Second connection attempt fails after 1000 ms.
connecting
- in CONNECT_IN_PROGRESS for 0 ms (1000 ms backoff)
+ in CONNECTING for 0 ms (1000 ms backoff)
timeout
advance 1000 ms
### t=4000 ###
- in CONNECT_IN_PROGRESS for 1000 ms (1000 ms backoff)
+ in CONNECTING for 1000 ms (1000 ms backoff)
run
should disconnect
connect-failed
# Third connection attempt succeeds after 500 ms.
connecting
- in CONNECT_IN_PROGRESS for 0 ms (2000 ms backoff)
+ in CONNECTING for 0 ms (2000 ms backoff)
advance 500
### t=6500 ###
- in CONNECT_IN_PROGRESS for 500 ms (2000 ms backoff)
+ in CONNECTING for 500 ms (2000 ms backoff)
run
connected
in ACTIVE for 0 ms (2000 ms backoff)
- created 1000, last received 1000, last connected 6500
+ created 1000, last activity 1000, last connected 6500
1 successful connections out of 3 attempts, seqno 1
- connected (0 ms), total 0 ms connected
+ connected
+ last connected 0 ms ago, connected 0 ms total
# Connection receives 3 chunks of data spaced 250 ms apart.
advance 250
### t=6750 ###
in ACTIVE for 250 ms (2000 ms backoff)
- connected (250 ms), total 250 ms connected
run
-received
- created 1000, last received 6750, last connected 6500
+activity
+ created 1000, last activity 6750, last connected 6500
advance 250
### t=7000 ###
in ACTIVE for 500 ms (2000 ms backoff)
- connected (500 ms), total 500 ms connected
run
-received
- created 1000, last received 7000, last connected 6500
+activity
+ created 1000, last activity 7000, last connected 6500
advance 250
### t=7250 ###
in ACTIVE for 750 ms (2000 ms backoff)
- connected (750 ms), total 750 ms connected
run
-received
- created 1000, last received 7250, last connected 6500
+activity
+ created 1000, last activity 7250, last connected 6500
# Connection drops.
disconnected
in BACKOFF for 0 ms (4000 ms backoff)
1 successful connections out of 3 attempts, seqno 2
- not connected (0 ms), total 750 ms connected
+ disconnected
+ disconnected at 7250 ms (0 ms ago)
run
# Back off for 4000 ms.
### t=11250 ###
in BACKOFF for 4000 ms (4000 ms backoff)
+ last connected 4750 ms ago, connected 750 ms total
run
should connect
])
-AT_CLEANUP
######################################################################
-AT_SETUP([long connection resets backoff])
-AT_KEYWORDS([reconnect])
-AT_DATA([input], [enable
+RECONNECT_CHECK([long connection resets backoff],
+ [enable
# First connection attempt fails after 1000 ms.
run
# Connection receives 3 chunks of data spaced 2000 ms apart.
advance 2000
run
-received
+activity
advance 2000
run
-received
+activity
advance 2000
run
-received
+activity
# Connection drops.
disconnected
# Back off for 1000 ms.
timeout
run
-])
-OVS_CHECK_LCOV([test-reconnect < input], [0],
+],
[### t=1000 ###
enable
in BACKOFF for 0 ms (0 ms backoff)
run
should connect
connecting
- in CONNECT_IN_PROGRESS for 0 ms (0 ms backoff)
+ in CONNECTING for 0 ms (0 ms backoff)
run
timeout
advance 1000 ms
### t=2000 ###
- in CONNECT_IN_PROGRESS for 1000 ms (0 ms backoff)
+ in CONNECTING for 1000 ms (0 ms backoff)
run
should disconnect
connect-failed
# Second connection attempt fails after 1000 ms.
connecting
- in CONNECT_IN_PROGRESS for 0 ms (1000 ms backoff)
+ in CONNECTING for 0 ms (1000 ms backoff)
timeout
advance 1000 ms
### t=4000 ###
- in CONNECT_IN_PROGRESS for 1000 ms (1000 ms backoff)
+ in CONNECTING for 1000 ms (1000 ms backoff)
run
should disconnect
connect-failed
# Third connection attempt succeeds after 500 ms.
connecting
- in CONNECT_IN_PROGRESS for 0 ms (2000 ms backoff)
+ in CONNECTING for 0 ms (2000 ms backoff)
advance 500
### t=6500 ###
- in CONNECT_IN_PROGRESS for 500 ms (2000 ms backoff)
+ in CONNECTING for 500 ms (2000 ms backoff)
run
connected
in ACTIVE for 0 ms (2000 ms backoff)
- created 1000, last received 1000, last connected 6500
+ created 1000, last activity 1000, last connected 6500
1 successful connections out of 3 attempts, seqno 1
- connected (0 ms), total 0 ms connected
+ connected
+ last connected 0 ms ago, connected 0 ms total
# Connection receives 3 chunks of data spaced 2000 ms apart.
advance 2000
### t=8500 ###
in ACTIVE for 2000 ms (2000 ms backoff)
- connected (2000 ms), total 2000 ms connected
run
-received
- created 1000, last received 8500, last connected 6500
+activity
+ created 1000, last activity 8500, last connected 6500
advance 2000
### t=10500 ###
in ACTIVE for 4000 ms (2000 ms backoff)
- connected (4000 ms), total 4000 ms connected
run
-received
- created 1000, last received 10500, last connected 6500
+activity
+ created 1000, last activity 10500, last connected 6500
advance 2000
### t=12500 ###
in ACTIVE for 6000 ms (2000 ms backoff)
- connected (6000 ms), total 6000 ms connected
run
-received
- created 1000, last received 12500, last connected 6500
+activity
+ created 1000, last activity 12500, last connected 6500
# Connection drops.
disconnected
in BACKOFF for 0 ms (1000 ms backoff)
1 successful connections out of 3 attempts, seqno 2
- not connected (0 ms), total 6000 ms connected
+ disconnected
+ disconnected at 12500 ms (0 ms ago)
run
# Back off for 1000 ms.
### t=13500 ###
in BACKOFF for 1000 ms (1000 ms backoff)
+ last connected 7000 ms ago, connected 6000 ms total
run
should connect
])
-AT_CLEANUP
######################################################################
-AT_SETUP([connection attempt fails quickly])
-AT_KEYWORDS([reconnect])
-AT_DATA([input], [enable
+RECONNECT_CHECK([connection attempt fails quickly],
+ [enable
# Connection fails quickly.
run
# Back off for 2000 ms.
run
timeout
-])
-OVS_CHECK_LCOV([test-reconnect < input], [0],
- [### t=1000 ###
+],
+ [### t=1000 ###
enable
in BACKOFF for 0 ms (0 ms backoff)
### t=4000 ###
in BACKOFF for 2000 ms (2000 ms backoff)
])
-AT_CLEANUP
######################################################################
-AT_SETUP([max-tries of 1 honored])
-AT_KEYWORDS([reconnect])
-AT_DATA([input], [set-max-tries 1
+RECONNECT_CHECK([max-tries of 1 honored],
+ [set-max-tries 1
enable
# Connection succeeds.
timeout
run
disconnected
-])
-OVS_CHECK_LCOV([test-reconnect < input], [0],
+],
[### t=1000 ###
set-max-tries 1
1 tries left
should connect
connected
in ACTIVE for 0 ms (0 ms backoff)
+ created 1000, last activity 1000, last connected 1000
1 successful connections out of 1 attempts, seqno 1
- connected (0 ms), total 0 ms connected
+ connected
+ last connected 0 ms ago, connected 0 ms total
# Send inactivity probe.
timeout
### t=6000 ###
in ACTIVE for 5000 ms (0 ms backoff)
- connected (5000 ms), total 5000 ms connected
run
should send probe
in IDLE for 0 ms (0 ms backoff)
### t=11000 ###
in IDLE for 5000 ms (0 ms backoff)
- connected (10000 ms), total 10000 ms connected
run
should disconnect
disconnected
in VOID for 0 ms (1000 ms backoff)
1 successful connections out of 1 attempts, seqno 2
- not connected (0 ms), total 10000 ms connected
+ disconnected
+ disconnected at 11000 ms (0 ms ago)
])
-AT_CLEANUP
######################################################################
-AT_SETUP([max-tries of 0 honored])
-AT_KEYWORDS([reconnect])
-AT_DATA([input], [set-max-tries 0
+RECONNECT_CHECK([max-tries of 0 honored],
+ [set-max-tries 0
enable
run
timeout
-])
-OVS_CHECK_LCOV([test-reconnect < input], [0],
+],
[### t=1000 ###
set-max-tries 0
0 tries left
timeout
no timeout
])
-AT_CLEANUP
+
+######################################################################
+RECONNECT_CHECK([passive mode],
+ [passive
+enable
+
+# Start listening.
+timeout
+run
+listening
+
+# Listening never times out.
+timeout
+run
+
+# Listening failed (accept() returned funny error?). Back off and try again.
+listen-error 0
+timeout
+run
+listening
+
+# Connection accepted.
+connected
+activity
+advance 1000
+activity
+
+# Connection times out.
+timeout
+run
+timeout
+run
+disconnected
+
+# Start listening again.
+timeout
+run
+listening
+],
+ [### t=1000 ###
+passive
+enable
+ in BACKOFF for 0 ms (0 ms backoff)
+
+# Start listening.
+timeout
+ advance 0 ms
+run
+ should connect
+listening
+ in LISTENING for 0 ms (0 ms backoff)
+
+# Listening never times out.
+timeout
+ no timeout
+run
+
+# Listening failed (accept() returned funny error?). Back off and try again.
+listen-error 0
+ in BACKOFF for 0 ms (1000 ms backoff)
+timeout
+ advance 1000 ms
+
+### t=2000 ###
+ in BACKOFF for 1000 ms (1000 ms backoff)
+run
+ should connect
+listening
+ in LISTENING for 0 ms (1000 ms backoff)
+
+# Connection accepted.
+connected
+ in ACTIVE for 0 ms (1000 ms backoff)
+ created 1000, last activity 1000, last connected 2000
+ 1 successful connections out of 1 attempts, seqno 1
+ connected
+ last connected 0 ms ago, connected 0 ms total
+activity
+ created 1000, last activity 2000, last connected 2000
+advance 1000
+
+### t=3000 ###
+ in ACTIVE for 1000 ms (1000 ms backoff)
+activity
+ created 1000, last activity 3000, last connected 2000
+
+# Connection times out.
+timeout
+ advance 5000 ms
+
+### t=8000 ###
+ in ACTIVE for 6000 ms (1000 ms backoff)
+run
+ should send probe
+ in IDLE for 0 ms (1000 ms backoff)
+timeout
+ advance 5000 ms
+
+### t=13000 ###
+ in IDLE for 5000 ms (1000 ms backoff)
+run
+ should disconnect
+disconnected
+ in BACKOFF for 0 ms (0 ms backoff)
+ 1 successful connections out of 1 attempts, seqno 2
+ disconnected
+ disconnected at 13000 ms (0 ms ago)
+
+# Start listening again.
+timeout
+ advance 0 ms
+run
+ should connect
+listening
+ in LISTENING for 0 ms (0 ms backoff)
+])