Use `ctest` or `make test` to run all tests.
With this it's also possible to run tests on a Mac.
Relative paths used in tests become absolute ones to make tests
executable from any build folder.
Also fixed race condition in
test/broker/11-persistent-subscription-no-local.py
Signed-off-by: Kai Buschulte <kai.buschulte@cedalo.com>
This comes in the form of:
* Per listener maximum_qos option, which can be in the range 0-2.
* Changes to mosquitto_publish*() to return MOSQ_ERR_QOS_NOT_SUPPORTED
if attempting to publish with a higher QoS than supported.
* Bridges will downgrade messages to match the maximum QoS.
More tests on the broker side (specifically bridges) are required. This
needs bridge support for MQTT 5 first.