Add dumb test that extracts event from queue

tests/consumer_test.cpp

@@ -241,3 +241,18 @@ TEST_CASE("consume batch", "[consumer]") {
     CHECK(all_messages[0].get_payload() == payload);
     CHECK(all_messages[1].get_payload() == payload);
 }
+
+TEST_CASE("Event consumption", "[consumer]") {
+    // Create a consumer and subscribe to the topic
+    Consumer consumer(make_consumer_config());
+    consumer.subscribe({ KAFKA_TOPICS[0] });
+
+    vector<rd_kafka_event_type_t> types = {
+        RD_KAFKA_EVENT_NONE
+    };
+    Queue queue = consumer.get_main_queue();
+    for (const auto type : types) {
+        const Event event = queue.next_event();
+        CHECK(event.get_type() == type);
+    }
+}