[paho-dev] Failing to connect to mosquitto in GitHub/Travis tests

[Frank Pagliughi <fpagliughi@xxxxxxxxxxxxxx>]

[cross-posted]

Hey All,

The unit tests for the Paho C++ library have been failing for the last week or more. The tests install mosquitto and use it to connect over localhost inside the container. Now I'm getting all connection failures:

!!!FAILURES!!!

Test Results:

Run:  224   Failures: 2   Errors: 55

1) test: mqtt::async_client_test::test_connect_0_arg (F) line: 178 /home/travis/build/eclipse/paho.mqtt.cpp/test/cppunit/async_client_test.h

forced failure

- Connection failure: MQTT error [-1]: TCP/TLS connect failure

2) test: mqtt::async_client_test::test_connect_1_arg (E) 

uncaught exception of type mqtt::exception

- MQTT error [-1]: TCP/TLS connect failure

...

I tried re-submitting an old version that had passed, and it failed as well, so I don't think it's from any new code that I've added recently.

I have Travis running xenial and appears to be downloading and installing mosquitto 1.6.7.

Any ideas? I'm stumped.

Thanks,
Frank