v/vlib/eventbus/eventbus_test.v

import eventbus

struct EventData {
	data string
}

fn test_eventbus() {
	ev_data := &EventData{'hello'}
	mut eb := eventbus.new()
	eb.subscriber.subscribe_once('on_test', on_test)
	assert eb.has_subscriber('on_test')
	assert eb.subscriber.is_subscribed('on_test')
	eb.publish('on_test', eb, ev_data)
	assert !eb.has_subscriber('on_test')
	assert !eb.subscriber.is_subscribed('on_test')
	eb.subscriber.subscribe('on_test', on_test)
	assert eb.has_subscriber('on_test')
	assert eb.subscriber.is_subscribed('on_test')
	eb.clear_all()
	assert !eb.has_subscriber('on_test')
	assert !eb.subscriber.is_subscribed('on_test')
}

fn on_test(receiver voidptr, ev &EventData, sender voidptr) {
	assert receiver == 0
	assert sender != 0
	assert ev.data == 'hello'
}