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v/vlib/eventbus/eventbus_test.v

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import eventbus
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struct EventData {
data string
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}
struct FakeReceiver {
ok bool
}
fn test_eventbus_string() {
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ev_data := &EventData{'hello'}
mut eb := eventbus.new[string]()
eb.subscriber.subscribe_once('on_test', on_test)
assert eb.has_subscriber('on_test')
assert !eb.has_subscriber('not_exist')
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')
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eb.clear_all()
assert !eb.has_subscriber('on_test')
assert !eb.subscriber.is_subscribed('on_test')
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}
enum Events {
event_1
event_2
event_3
}
fn test_eventbus_enum() {
ev_data := &EventData{'hello'}
mut eb := eventbus.EventBus.new[Events]()
eb.subscriber.subscribe_once(Events.event_1, on_test)
assert eb.has_subscriber(Events.event_1)
assert !eb.has_subscriber(Events.event_2)
assert eb.subscriber.is_subscribed(Events.event_1)
eb.publish(Events.event_1, eb, ev_data)
assert !eb.has_subscriber(Events.event_1)
assert !eb.subscriber.is_subscribed(Events.event_1)
eb.subscriber.subscribe(Events.event_1, on_test)
assert eb.has_subscriber(Events.event_1)
assert eb.subscriber.is_subscribed(Events.event_1)
eb.clear_all()
assert !eb.has_subscriber(Events.event_1)
assert !eb.subscriber.is_subscribed(Events.event_1)
}
fn test_eventbus_int() {
ev_data := &EventData{'hello'}
mut eb := eventbus.EventBus.new[int]()
eb.subscriber.subscribe_once(9999, on_test)
assert eb.has_subscriber(9999)
assert !eb.has_subscriber(1111)
assert eb.subscriber.is_subscribed(9999)
eb.publish(9999, eb, ev_data)
assert !eb.has_subscriber(9999)
assert !eb.subscriber.is_subscribed(9999)
eb.subscriber.subscribe(9999, on_test)
assert eb.has_subscriber(9999)
assert eb.subscriber.is_subscribed(9999)
eb.clear_all()
assert !eb.has_subscriber(9999)
assert !eb.subscriber.is_subscribed(9999)
}
fn test_subscribe_method() {
// Does not really test subscribe_method idinvidually though
// given
mut eb := eventbus.new[string]()
r := FakeReceiver{}
assert !eb.subscriber.is_subscribed_method('on_test_with_receiver', r)
// when
eb.subscriber.subscribe_method('on_test_with_receiver', on_test_with_receiver, r)
// then
assert eb.subscriber.is_subscribed_method('on_test_with_receiver', r)
}
fn test_unsubscribe_method() {
// given
mut eb := eventbus.new[string]()
r := FakeReceiver{}
r2 := FakeReceiver{}
// when
eb.subscriber.subscribe_method('on_test_with_receiver', on_test_with_receiver, r)
eb.subscriber.subscribe_method('on_test_with_receiver', on_test_with_receiver, r2)
eb.subscriber.unsubscribe_method('on_test_with_receiver', r)
// then
assert !eb.subscriber.is_subscribed_method('on_test_with_receiver', r)
assert eb.subscriber.is_subscribed_method('on_test_with_receiver', r2)
}
fn test_publish() {
// given
ev_data := &EventData{'hello'}
mut eb := eventbus.new[string]()
// when
eb.subscriber.subscribe_once('on_test', on_test)
eb.subscriber.subscribe_once('on_test', on_test)
eb.publish('on_test', eb, ev_data)
// then
assert !eb.subscriber.is_subscribed('on_test')
}
fn test_publish_with_receiver() {
// given
mut eb := eventbus.new[string]()
ev_data := &EventData{'hello'}
r := FakeReceiver{}
// when
eb.subscriber.subscribe_method('on_test_with_receiver', on_test_with_receiver, r)
eb.publish('on_test_with_receiver', eb, ev_data)
// then asserts are in on_test_with_receiver, don't know how to be sure
// that it has been properly called...
}
fn test_unsubscribe_reveiver() {
// given
mut eb := eventbus.new[string]()
r := &FakeReceiver{}
// when
eb.subscriber.subscribe_method('on_test_with_receiver', on_test_with_receiver, r)
eb.subscriber.subscribe_method('on_test', on_test, r)
eb.subscriber.unsubscribe_receiver(r)
assert !eb.subscriber.is_subscribed_method('on_test_with_receiver', r)
assert !eb.subscriber.is_subscribed_method('on_test', r)
}
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fn on_test(receiver voidptr, ev &EventData, sender voidptr) {
assert receiver == 0
assert sender != 0
assert ev.data == 'hello'
}
fn on_test_with_receiver(receiver &FakeReceiver, ev &EventData, sender voidptr) {
assert receiver.ok == false
assert sender != 0
assert ev.data == 'hello'
}