Add RIOT federated CoAP TEST

[LasseRosenow]

No real test yet, but at least I finally managed to run the sender and the receiver in parallel from one script file.
I had a strange race condition in RIOT perhaps? The sender and receiver were unable to talk over the tap interface, if they started to fast in parallel.

The solution for now is: sleep 3 .... But it wörks :)

[LasseRosenow]

The next step is to let the CI execute this and add a small test case that fails if the receiver does not receive the Hello message within a reasonable margin of time.

[github-actions]

Benchmark results after merging this PR:

Benchmark results

Performance:

PingPongUc:
Best Time: 204.908 msec
Worst Time: 206.210 msec
Median Time: 206.342 msec

PingPongC:
Best Time: 169.787 msec
Worst Time: 177.327 msec
Median Time: 170.210 msec

ReactionLatencyUc:
Best latency: 31702 nsec
Median latency: 60490 nsec
Worst latency: 779339 nsec

ReactionLatencyC:
Best latency: 29635 nsec
Median latency: 60491 nsec
Worst latency: 97100 nsec

Memory usage:

PingPongUc:
text data bss dec hex filename
40932 760 7440 49132 bfec bin/PingPongUc

PingPongC:
text data bss dec hex filename
45826 880 360 47066 b7da bin/PingPongC

ReactionLatencyUc:
text data bss dec hex filename
30737 744 2080 33561 8319 bin/ReactionLatencyUc

ReactionLatencyC:
text data bss dec hex filename
41536 848 360 42744 a6f8 bin/ReactionLatencyC

[github-actions]

Memory usage after merging this PR will be:

Memory Report

action_empty_test_c

	from	to	increase (%)
text	60860	60821	-0.06
data	752	752	0.00
bss	11360	11360	0.00
total	72972	72933	-0.05

action_microstep_test_c

	from	to	increase (%)
text	61731	61692	-0.06
data	760	760	0.00
bss	11424	11424	0.00
total	73915	73876	-0.05

action_overwrite_test_c

	from	to	increase (%)
text	61568	61529	-0.06
data	752	752	0.00
bss	11424	11424	0.00
total	73744	73705	-0.05

action_test_c

	from	to	increase (%)
text	61472	61433	-0.06
data	760	760	0.00
bss	11424	11424	0.00
total	73656	73617	-0.05

deadline_test_c

	from	to	increase (%)
text	57102	57063	-0.07
data	768	768	0.00
bss	10784	10784	0.00
total	68654	68615	-0.06

delayed_conn_test_c

	from	to	increase (%)
text	62464	62425	-0.06
data	752	752	0.00
bss	10272	10272	0.00
total	73488	73449	-0.05

event_payload_pool_test_c

	from	to	increase (%)
text	18331	18331	0.00
data	624	624	0.00
bss	320	320	0.00
total	19275	19275	0.00

event_queue_test_c

	from	to	increase (%)
text	27616	27616	0.00
data	736	736	0.00
bss	480	480	0.00
total	28832	28832	0.00

nanopb_test_c

	from	to	increase (%)
text	42886	42886	0.00
data	904	904	0.00
bss	320	320	0.00
total	44110	44110	0.00

port_test_c

	from	to	increase (%)
text	62412	62373	-0.06
data	752	752	0.00
bss	10272	10272	0.00
total	73436	73397	-0.05

reaction_queue_test_c

	from	to	increase (%)
text	27448	27448	0.00
data	736	736	0.00
bss	480	480	0.00
total	28664	28664	0.00

request_shutdown_test_c

	from	to	increase (%)
text	61703	61664	-0.06
data	752	752	0.00
bss	11424	11424	0.00
total	73879	73840	-0.05

startup_test_c

	from	to	increase (%)
text	56801	56762	-0.07
data	760	760	0.00
bss	10784	10784	0.00
total	68345	68306	-0.06

tcp_channel_test_c

	from	to	increase (%)
text	96867	96828	-0.04
data	1256	1256	0.00
bss	21376	21376	0.00
total	119499	119460	-0.03

timer_test_c

	from	to	increase (%)
text	56692	56653	-0.07
data	752	752	0.00
bss	10784	10784	0.00
total	68228	68189	-0.06

[erlingrj]

Looks promising. It would be really great to understand what this race condition in the startup is about. Adding explicit sleeps to enforce some ordering often works great until we have some freak CI run where the timing is completely messed up because it is running in the cloud and maybe the CI task was suspended at the wrong point etc...

[LasseRosenow]

Okay this is pretty much done. The only problem that remains is that I am having issues setting up the tap interfaces in the CI. I will look more into it

[LasseRosenow]

Holy f** the CI has finally passed :D

[LasseRosenow]

Finally I got the tap interfaces working in the CI, this is ready for review!! 🥳

[erlingrj]

THis looks great! Added a commit fixing the example program. And a few comments

[github-actions]

Coverage after merging add-riot-federated-coap-test into main will be

70.49%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
src
action.c	77.69%	65.63%	100%	81.18%	134–135, 24, 42–45, 48, 50–51, 54–56, 62–63, 70–72, 72, 72–75, 81–82, 93–94
builtin_triggers.c	90.91%	70%	100%	96.77%	14, 18, 40, 43
connection.c	77.33%	51.16%	100%	86.73%	10, 104, 11, 110, 123–124, 136–137, 14, 14, 143, 145–146, 148, 16–17, 21–22, 22, 22–23, 25, 27–28, 33, 48, 48, 48–49, 55, 60–62, 97
environment.c	82.18%	60%	92.31%	86.76%	12–13, 18, 20–21, 31, 35–36, 42–43, 59–60, 64–65, 97–99
event.c	95.35%	92.86%	100%	96.15%	14–15
federated.c	5.23%	2.73%	7.69%	6.33%	10, 100, 102, 104, 104, 104–105, 109, 11, 112–113, 113, 113–114, 116–117, 119, 123–124, 126–128, 13, 131, 133–138, 140–142, 145–147, 147, 147–148, 148, 148–149, 15, 15, 15, 150, 152, 155–156, 158–159, 16, 160–162, 164–169, 17, 171, 171, 171–174, 176, 176, 176–178, 178, 178–179, 18, 183–184, 184, 184, 187–188, 19, 19, 19, 192–194, 196, 196, 196, 198–202, 205, 205, 205–208, 211–212, 212, 212–213, 215–216, 219, 22, 220, 225–226, 226, 226–227, 229, 23, 231, 231, 231–234, 234, 234, 234, 234, 234–239, 24, 24, 24, 240–243, 243, 243–244, 246, 248–249, 25, 250–256, 26, 26, 26, 260, 263, 263, 263–265, 269, 27, 272–273, 273, 273, 273–279, 28, 280–281, 283, 289, 29, 29, 29, 290–291, 30, 30, 30, 30, 30, 303–304, 307–309, 31, 310, 312, 312, 312–313, 317–318, 318, 318, 320, 322–323, 323, 323–324, 324, 324–325, 325, 325–326, 326, 326–327, 327, 327–328, 328, 328–329, 329, 329, 33, 331, 331, 331–332, 332, 332–333, 333, 333–334, 334, 334–335, 335, 335, 337, 36, 36, 36, 36, 36–37, 41–42, 46–47, 49–52, 54, 54, 54–55, 55, 55, 57, 57, 57–59, 59, 59–61, 65–66, 70–71, 73–76, 78, 80, 80, 80–81, 81, 81–82, 82, 82–83, 83, 83, 86–87, 89–92, 94, 94, 94–97, 97, 97–98
logging.c	88.52%	83.33%	100%	89.36%	25, 38–40, 47, 60–61
network_channel.c	69.23%	62.50%	100%	70.59%	40, 40, 40, 45–48, 57
port.c	78.08%	45.83%	100%	93.33%	10, 10, 10, 16, 20, 25, 25–27, 27, 27–28, 39, 39, 39–40
queues.c	89.94%	80.36%	100%	94.06%	108, 113, 119, 21–23, 47–48, 60–61, 84–88, 91–92
reaction.c	71.19%	54.55%	100%	79.71%	15, 17, 21, 28–31, 31, 31–32, 42, 45, 47, 52–53, 53, 53–55, 55, 55–56, 73, 89–91, 91, 91–94, 94, 94–95
reactor.c	69.33%	51.52%	100%	82.28%	10, 101–102, 14–19, 22, 28, 30, 32–37, 37, 37–38, 38, 38, 43, 55, 58–59, 59, 59–60, 60, 60–61, 63, 77–78, 81–82, 82, 82–83, 83, 83–84, 86, 91
serialization.c	37.50%	25%	50%	40%	16–17, 26–27, 33–34, 34, 34–35, 37–38, 41–42, 42, 42–43, 45–46
tag.c	40.19%	31.48%	60%	47.92%	14, 14–15, 17, 17–18, 23–24, 24, 24, 24, 24–25, 27, 27, 27, 27, 27–28, 30, 30, 30–31, 33–34, 34, 34–35, 37, 37, 37, 37, 37–38, 40, 40, 40, 40, 40–41, 43, 53–54, 63, 63–64, 83–85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85–87, 89
timer.c	95%	66.67%	100%	100%	14, 25
trigger.c	100%	100%	100%	100%
util.c	41.67%	33.33%	33.33%	46.67%	12–13, 13, 13–16, 18–20, 4–5
src/platform/posix
posix.c	53.15%	30%	66.67%	56.58%	100–101, 101, 101–103, 107, 16, 18, 20–21, 35–37, 39–41, 49–50, 55–60, 60, 60–63, 63, 63–65, 68, 74–75, 79, 82, 93–95, 95, 95–97, 99
tcp_ip_channel.c	65.10%	51.42%	94.12%	74.36%	100, 103–104, 104, 104–105, 119–120, 122, 124, 128–129, 137, 140–141, 141, 141–142, 147–148, 148, 148–149, 155–156, 156, 156–158, 172, 175, 179, 179, 179, 179, 179–180, 180, 180–181, 181, 181–182, 184, 186, 186, 186–187, 196, 203–204, 208–209, 213, 213, 213–215, 215, 215–216, 218, 218, 218–219, 219, 219, 221, 223–224, 228, 228, 228–229, 249, 262–263, 263, 263–264, 270, 275–276, 276,

[LasseRosenow]

Okay I think all the feedback is addressed, thank you!