/
listener_remove_test.go
150 lines (124 loc) · 3.46 KB
/
listener_remove_test.go
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package event
import (
"testing"
"github.com/gookit/goutil/testutil/assert"
)
type globalTestVal struct {
n int
sum int
}
type testListenerCalc struct {
bind int
owner *globalTestVal
}
func (l testListenerCalc) Handle(e Event) error {
l.owner.n++
l.owner.sum += l.bind
return nil
}
func Test_RemoveListener(t *testing.T) {
t.Run("make func", func(t *testing.T) {
global := &globalTestVal{}
makeFn := func(a int) ListenerFunc {
return func(e Event) error {
global.n++
global.sum += a
return nil
}
}
evBus := NewManager("")
const evName = "ev1"
f1 := makeFn(11)
f2 := makeFn(22)
f3 := makeFn(33)
p4 := &testListenerCalc{bind: 44, owner: global}
p5 := &testListenerCalc{bind: 55, owner: global}
p6 := &testListenerCalc{bind: 66, owner: global}
evBus.On(evName, f1)
evBus.On(evName, f2)
evBus.On(evName, f3)
evBus.On(evName, p4)
evBus.On(evName, p5)
evBus.On(evName, p6)
evBus.MustTrigger(evName, nil)
assert.Equal(t, global.n, 6)
assert.Equal(t, global.sum, 231) // 11+22+33+44+55+66=231
evBus.RemoveListener(evName, f2)
evBus.RemoveListener(evName, p5)
evBus.MustFire(evName, nil)
assert.Equal(t, global.n, 6+4)
assert.Equal(t, global.sum, 385) // 231+11+33+44+66=385
evBus.RemoveListener(evName, f1)
evBus.RemoveListener(evName, f1) // not exist function.
evBus.MustFire(evName, nil)
assert.Equal(t, global.n, 6+4+3)
assert.Equal(t, global.sum, 528) // 385+33+44+66=528
evBus.RemoveListener(evName, p6)
evBus.RemoveListener(evName, p6) // not exist function.
evBus.MustFire(evName, nil)
assert.Equal(t, global.n, 6+4+3+2)
assert.Equal(t, global.sum, 605) // 528+33+44=605
})
t.Run("same value struct", func(t *testing.T) {
global := &globalTestVal{}
f1 := testListenerCalc{bind: 11, owner: global}
f2 := testListenerCalc{bind: 22, owner: global}
f2same := testListenerCalc{bind: 22, owner: global}
f2copy := f2 // testListenerCalc{bind: 22, owner: global}
evBus := NewManager("")
const evName = "ev1"
assert.Panics(t, func() {
evBus.On(evName, f1)
evBus.On(evName, f2)
evBus.On(evName, f2same)
evBus.On(evName, f2copy)
})
evBus.MustFire(evName, nil)
assert.Equal(t, global.n, 0)
assert.Equal(t, global.sum, 0) // 11+22+22+22=77
evBus.RemoveListener(evName, f1)
evBus.MustFire(evName, nil)
assert.Equal(t, global.n, 0)
assert.Equal(t, global.sum, 0) // 77+22+22+22=143
evBus.RemoveListener(evName, f2)
evBus.MustFire(evName, nil)
assert.Equal(t, global.n, 0)
assert.Equal(t, global.sum, 0)
})
t.Run("same func", func(t *testing.T) {
global := &globalStatic
f1 := ListenerFunc(testFuncCalc1)
f2 := ListenerFunc(testFuncCalc2)
f2same := ListenerFunc(testFuncCalc2)
f2copy := f2
evBus := NewManager("")
const evName = "ev1"
evBus.On(evName, f1)
evBus.On(evName, f2)
evBus.On(evName, f2same)
evBus.On(evName, f2copy)
evBus.MustFire(evName, nil)
assert.Equal(t, global.n, 4)
assert.Equal(t, global.sum, 77) // 11+22+22+22=77
evBus.RemoveListener(evName, f1)
evBus.MustFire(evName, nil)
assert.Equal(t, global.n, 7)
assert.Equal(t, global.sum, 143) // 77+22+22+22=143
evBus.RemoveListener(evName, f2)
evBus.MustFire(evName, nil)
assert.Equal(t, global.n, 7)
assert.Equal(t, global.sum, 143) //
})
}
var globalStatic = globalTestVal{}
func testFuncCalc1(e Event) error {
globalStatic.n++
globalStatic.sum += 11
return nil
}
func testFuncCalc2(e Event) error {
globalStatic.n++
globalStatic.sum += 22
return nil
}
// /