apps/netutils: Modify the MQTT compilation file to enable MQTT testing

[zs39]

Summary

Modify the build and test files to make the MQTT test cases run.
Previously, native MQTT test cases were not compiled. Now, these native test cases are compiled in to make them run. However, some test cases do have issues that were not introduced by this patch but existed in the original test cases.

Impact

Only affects MQTT testing

Testing

The compilation is successful and the test commands can be executed normally.
`nsh> cmocka_mqttc_test
Staring MQTT-C unit-tests.
Using broker: "test.mosquitto.org:1883"

[MQTT Packet Serialization/Deserialization Tests]
[==========] framing_tests: Running 11 test(s).
[ RUN ] TEST__framing__fixed_header
[ OK ] TEST__framing__fixed_header
[ RUN ] TEST__framing__connect
[ OK ] TEST__framing__connect
[ RUN ] TEST__framing__connack
[ OK ] TEST__framing__connack
[ RUN ] TEST__framing__publish
[ OK ] TEST__framing__publish
[ RUN ] TEST__framing__pubxxx
[ OK ] TEST__framing__pubxxx
[ RUN ] TEST__framing__subscribe
[ OK ] TEST__framing__subscribe
[ RUN ] TEST__framing__suback
[ OK ] TEST__framing__suback
[ RUN ] TEST__framing__unsubscribe
[ OK ] TEST__framing__unsubscribe
[ RUN ] TEST__framing__unsuback
[ OK ] TEST__framing__unsuback
[ RUN ] TEST__framing__ping
[ OK ] TEST__framing__ping
[ RUN ] TEST__framing__disconnect
[ OK ] TEST__framing__disconnect
[==========] framing_tests: 11 test(s) run.
[ PASSED ] 11 test(s).

[MQTT-C Utilities Tests]
[==========] util_tests: Running 4 test(s).
[ RUN ] TEST__utility__message_queue
[ OK ] TEST__utility__message_queue
[ RUN ] TEST__utility__pid_lfsr
[ OK ] TEST__utility__pid_lfsr
[ RUN ] TEST__utility__connect_disconnect
Failed to open socket (getaddrinfo): EAI_AGAIN
[ ERROR ] --- client.socketfd != -1
[ LINE ] --- MQTT-C/tests.c:280: error: Failure!
[ FAILED ] TEST__utility__connect_disconnect
[ RUN ] TEST__utility__ping
Failed to open socket (getaddrinfo): EAI_AGAIN
[ ERROR ] --- client.socketfd != -1
[ LINE ] --- MQTT-C/tests.c:482: error: Failure!
[ FAILED ] TEST__utility__ping
[==========] util_tests: 4 test(s) run.
[ PASSED ] 2 test(s).
[ FAILED ] util_tests: 2 test(s), listed below:
[ FAILED ] TEST__utility__connect_disconnect
[ FAILED ] TEST__utility__ping

2 FAILED TEST(S)

[MQTT-C API Tests]
[==========] api_tests: Running 3 test(s).
[ RUN ] TEST__api__connect_ping_disconnect
Failed to open socket (getaddrinfo): EAI_AGAIN
[ ERROR ] --- __mqtt_send(&client) > 0
[ LINE ] --- MQTT-C/tests.c:640: error: Failure!
[ FAILED ] TEST__api__connect_ping_disconnect
[ RUN ] TEST__api__publish_subscribe__single
Failed to open socket (getaddrinfo): EAI_AGAIN
Failed to open socket (getaddrinfo): EAI_AGAIN
[ ERROR ] --- __mqtt_send(&sender) > 0
[ LINE ] --- MQTT-C/tests.c:687: error: Failure!
[ FAILED ] TEST__api__publish_subscribe__single
[ RUN ] TEST__api__publish_subscribe__multiple
Failed to open socket (getaddrinfo): EAI_AGAIN
Failed to open socket (getaddrinfo): EAI_AGAIN
error: MQTT_ERROR_SOCKET_ERROR
[ ERROR ] --- rv > 0
[ LINE ] --- MQTT-C/tests.c:758: error: Failure!
[ FAILED ] TEST__api__publish_subscribe__multiple
[==========] api_tests: 3 test(s) run.
[ PASSED ] 0 test(s).
[ FAILED ] api_tests: 3 test(s), listed below:
[ FAILED ] TEST__api__connect_ping_disconnect
[ FAILED ] TEST__api__publish_subscribe__single
[ FAILED ] TEST__api__publish_subscribe__multiple

3 FAILED TEST(S)
`

[cederom]

Thank you @zs39 very nice addition mqtt is very popular! :-)

• Please check CI errors, cmake formatting needs fix.
• Could you please provide testing logs before and after the change? If this is "modification" then something was not working before right? If this is "introducing mqtt tests" then its a new feature not present before?
• Thank you for providing logs where tests fail. Could you please provide logs where tests pass?

[zs39]

Thank you @zs39 very nice addition mqtt is very popular! :-)

• Please check CI errors, cmake formatting needs fix.
• Could you please provide testing logs before and after the change? If this is "modification" then something was not working before right? If this is "introducing mqtt tests" then its a new feature not present before?
• Thank you for providing logs where tests fail. Could you please provide logs where tests pass?

This patch only compiles the native MQTT test cases; they weren't originally compiled and run. The native test cases themselves might have inherent issues, which won't be fixed in this patch.@cederom

[cederom]

Thank you @zs39 :-)