warning: EXPECT_FATAL_ALERT_LEVEL

[rathnamachary]

Iam able to run device advisor test suite with pub-sub test case and its passing with warnings.

pub sub test case path:
~/aws-iot-device-sdk-cpp-v2-src/samples/pub_sub/basic_pub_sub$

regarding for the EXPECT_FATAL_ALERT_LEVEL warning:

How do we send the alerts and where do we change?
please provide the required steps to resolve the warning.

Pls provide sample code/example for above.

and also pls provide the fix for below warning:
#779