event/event_test.go

package event_test

import (
	"testing"

	"dev.hexasoftware.com/hxs/event"
)

func TestEvent(t *testing.T) {
	es := event.NewSystem()
	bus := es.NewBus()
	a := 0
	bus.On("test", func(evt event.Event) {
		t.Log("Event successfull")
		a++
	})
	bus.Emit(event.New("test", nil))
	if a != 1 {
		t.Fatal("Event Failed")
	}

}

// Testing a named emitter that prefixes events
func TestNamedEmitter(t *testing.T) {
	es := event.NewSystem()
	bus := es.NewBus()

	em := event.NewNamedEmitter("user", bus)

	a := 0

	bus.On("test", func(evt event.Event) {
		a++
	})

	bus.On("user:test", func(evt event.Event) {
		t.Log("Event fired successfully")
		a++
	})

	em.Emit(event.New("test", nil))
	if a != 1 {
		t.Fail()
	}
}
func TestMultiBus(t *testing.T) {
	es := event.NewSystem()
	bus1 := es.NewBus()
	bus2 := es.NewBus()

	cevt := 0
	bus1.On("test", func(evt event.Event) {
		t.Log("Bus1 evt")
		cevt++
	})
	bus2.On("test", func(evt event.Event) {
		t.Log("Bus2 evt")
		cevt++
	})
	bus1.Emit(event.New("test", nil))
	if cevt != 2 {
		t.Fatal("mismatch number of events consumed")
	}
	es.RemoveBus(bus2)
	bus1.Emit(event.New("test", nil))

	if cevt != 3 {
		t.Fatal("mismatch number of events consumed, should be 3")
	}

}

type MyStruct struct {
	event.Emitter
}

func TestCustomStruct(t *testing.T) {
	es := event.NewSystem()
	bus := es.NewBus()
	a := 0

	bus.On("MyStruct:test", func(evt event.Event) {
		t.Log("Event fired successfully")
		a++
	})

	s := MyStruct{event.NewNamedEmitter("MyStruct", bus)}

	s.Emit(event.New("test", nil))

}

func TestParamData(t *testing.T) {
	es := event.NewSystem()
	bus := es.NewBus()
	bus.On("test", func(evt event.Event) {
		str := evt.Data().(string)
		if str != "123" {
			t.FailNow()
		}
	})
	bus.Emit(event.New("test", "123"))
}