Add support for DICONNECT message specified in MQTT 5.0.
As with MQTT 5.0, the disconnect can now also be initiated by the
broker, it was needed to add decoder support for the message.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Add support for PUBACK, PUBREC, PUBREL and PUBCOMP specified in MQTT
5.0. As all of these acknowledgment packets have similar format,
introduced a common encoder/decoder to handle ACK packets.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Add support for PUBLISH message specified in MQTT 5.0. The message
encoder and decoder were updated to support MQTT properties.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Add test variant which enables MQTT 5.0 support. MQTT 3.1.1 should still
work just fine in such case, so it needs to be verified that's the case.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
The MQTT publisher/subscriber/pubsub tests suites are currently
depending on an external MQTT broker being available. In result, the
test suites cannot be executed in twister and need to be run manually,
which makes them kind of pointless from the CI perspective.
This commit reworks the tests, so that they no longer rely on an
external broker being available, but rather implement minimalistic
broker functionality for test purposes only. This will make the tests
self contained, and thus executable in the CI.
Since it makes not point to duplicate the effort between the test
suites, the test suites have been merged into a single mqtt_client test
suite.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
Currently existing tests suites verify MQTT 3.1.1 functionality,
therefore group them together under "mqtt/v3_1_1" directory, so
that the test base can be extended easily in the future with MQTT 5.0
tests without collision.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
