Test failure of ML-service-agent

[gichan-jang]

ML-service-agent query test sometimes fails.

[  167s] [ RUN      ] MLServiceAgentTest.query_client
[  167s] dbus-daemon[1231059]: [session uid=33 pid=1231059] Activating service name='org.tizen.machinelearning.service' requested by ':1.0' (uid=33 pid=1228407 comm="<not-read>" label="unconfined")
[  168s] dbus-daemon[1231059]: [session uid=33 pid=1231059] Successfully activated service 'org.tizen.machinelearning.service'
[  168s] ../tests/capi/unittest_capi_service_agent_client.cc:654: Failure
[  168s] Expected equality of these values:
[  168s]   ML_ERROR_NONE
[  168s]     Which is: 0
[  168s]   status
[  168s]     Which is: -22
[  168s] ../tests/capi/unittest_capi_service_agent_client.cc:661: Failure
[  168s] Expected equality of these values:
[  168s]   ML_ERROR_NONE
[  168s]     Which is: 0
[  168s]   status
[  168s]     Which is: -22
[  168s] ../tests/capi/unittest_capi_service_agent_client.cc:662: Failure
[  168s] Expected equality of these values:
[  168s]   input_data_size
[  168s]     Which is: 48
[  168s]   output_data_size
[  168s]     Which is: 16

[taos-ci]

cibot: Thank you for posting issue #421. The person in charge will reply soon.

[anyj0527]

Reverting 0c61c37 would fix the issue. Should find why..
@jaeyun-jung