void IoTHubTransportMqtt_Unsubscribe(TRANSPORT_HANDLE handle)
{
PMQTTTRANSPORT_HANDLE_DATA transportState = (PMQTTTRANSPORT_HANDLE_DATA)handle;
/* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_019: [If parameter handle is NULL then IoTHubTransportMqtt_Unsubscribe shall do nothing.] */
if (transportState != NULL && transportState->subscribed)
{
/* Codes_SRS_IOTHUB_MQTT_TRANSPORT_07_020: [IoTHubTransportMqtt_Unsubscribe shall call mqtt_client_unsubscribe to unsubscribe the mqtt message topic.] */
const char* unsubscribe[] = { STRING_c_str(transportState->mqttMessageTopic) };
(void)mqtt_client_unsubscribe(transportState->mqttClient, transportState->packetId++, unsubscribe, 1);
transportState->subscribed = false;
}
}
static int test_subscribe(struct harness_t *harness_p)
{
struct mqtt_application_message_t foobar;
/* Subscribe. */
foobar.topic.buf_p = "foo/bar";
foobar.topic.size = 7;
foobar.qos = mqtt_qos_1_t;
BTASSERT(mqtt_client_subscribe(&client, &foobar) == 0);
thrd_sleep_ms(500);
/* Unsubscribe. */
foobar.topic.buf_p = "foo/bar";
foobar.topic.size = 7;
BTASSERT(mqtt_client_unsubscribe(&client, &foobar) == 0);
return (0);
}
