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bus_test.go
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bus_test.go
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package goeventbus
import (
"fmt"
"sync"
"testing"
"time"
"github.com/magiconair/properties/assert"
)
func TestSub(t *testing.T) {
sub := NewSub()
go func() {
msg := sub.Out().(int)
if msg != 7 {
t.Fatalf("got wrong number:%d", msg)
}
}()
sub.receive(7)
}
func TestSubscribe(t *testing.T) {
bus := NewBus()
sub := NewSub()
bus.Subscribe("topic1", sub)
bus.Subscribe("topic2", sub)
subslen, err := bus.SubsLen("topic1")
if err != nil && subslen != 1 {
t.Errorf("topic1 subslen wrong")
}
t.Logf("topic1 len = %v", subslen)
subslen, err = bus.SubsLen("topic2")
if err != nil && subslen != 1 {
t.Errorf("topic2 subslen wrong")
}
t.Logf("topic2 len = %v", subslen)
sub2 := NewSub()
bus.Subscribe("topic2", sub2)
subslen, err = bus.SubsLen("topic2")
if err != nil && subslen != 1 {
t.Errorf("topic2 subslen wrong")
}
t.Logf("topic2 len = %v", subslen)
}
func TestBus(t *testing.T) {
bus := NewBus()
sub := NewSub()
bus.Subscribe("topic1", sub)
var msg interface{}
var wait sync.WaitGroup
wait.Add(1)
go func() {
defer wait.Done()
msg = sub.Out().(int)
}()
bus.Publish("topic1", 7)
wait.Wait()
t.Logf("msg is %v", msg)
if msg != 7 {
t.Fatalf("got wrong number:%d", msg)
}
}
func TestManySubscribe(t *testing.T) {
sub1 := NewSub()
sub2 := NewSub()
sub3 := NewSub()
bus := NewBus()
bus.Subscribe("topic1", sub1)
bus.Subscribe("topic1", sub2)
bus.Subscribe("topic1", sub3)
bus.Subscribe("topic2", sub2)
bus.Subscribe("topic2", sub3)
bus.Subscribe("topic3", sub3)
go func() {
// topic1
sum := 0
sum = sub1.Out().(int) + sub2.Out().(int) + sub3.Out().(int)
t.Log(sum)
if sum != 21 {
t.Fatalf("got wrong %d", sum)
}
// topic2
sum = 0
sum = sub2.Out().(int) + sub3.Out().(int)
t.Log(sum)
if sum != 14 {
t.Fatalf("got wrong %d", sum)
}
// topic3
sum = 0
sum = sub3.Out().(int)
t.Log(sum)
if sum != 7 {
t.Fatalf("got wrong %d", sum)
}
}()
bus.Publish("topic1", 7)
bus.Publish("topic2", 7)
bus.Publish("topic3", 7)
time.Sleep(time.Duration(2) * time.Second)
}
func TestPubFunc(t *testing.T) {
bus := NewBus()
sub := NewSub()
bus.Subscribe("topic1", sub)
go func() {
msg := sub.Out().(int)
t.Logf("msg is %v", msg)
if msg != 7 {
t.Errorf("wrong num %v", msg)
}
}()
PubTopic1 := bus.PubFunc("topic1")
PubTopic1(7)
time.Sleep(time.Duration(1) * time.Second)
}
func TestFindSubIdx(t *testing.T) {
sub1 := NewSub()
sub2 := NewSub()
sub3 := NewSub()
sub4 := NewSub()
bus := NewBus()
bus.Subscribe("topic1", sub1)
bus.Subscribe("topic1", sub2)
bus.Subscribe("topic1", sub3)
idx1 := bus.subNode["topic1"].findSubIdx(sub1)
idx2 := bus.subNode["topic1"].findSubIdx(sub2)
idx3 := bus.subNode["topic1"].findSubIdx(sub3)
idx4 := bus.subNode["topic1"].findSubIdx(sub4)
assert.Equal(t, 0, idx1, fmt.Sprintf("sub1 index should be 0, not %v", idx1))
assert.Equal(t, 1, idx2, fmt.Sprintf("sub2 index should be 1, not %v", idx2))
assert.Equal(t, 2, idx3, fmt.Sprintf("sub3 index should be 2, not %v", idx3))
assert.Equal(t, -1, idx4, fmt.Sprintf("sub4 not in subs, index should be -1, not %v", idx4))
}
func TestRemoveSub(t *testing.T) {
sub1 := NewSub()
sub2 := NewSub()
sub3 := NewSub()
bus := NewBus()
bus.Subscribe("topic1", sub1)
bus.Subscribe("topic1", sub2)
bus.Subscribe("topic1", sub3)
// PubTopic1 := bus.PubFunc("topic1")
bus.subNode["topic1"].removeSub(sub3)
idx := bus.subNode["topic1"].findSubIdx(sub3)
assert.Equal(t, -1, idx, "sub3 is deleted, should be -1")
}
func TestUnScribe(t *testing.T) {
sub := NewSub()
bus := NewBus()
bus.Subscribe("topic1", sub)
PubTopic1 := bus.PubFunc("topic1")
bus.Subscribe("topic2", sub)
PubTopic2 := bus.PubFunc("topic2")
bus.UnSubscribe("topic1", sub)
go func() {
msg := sub.Out().(string)
// fmt.Println(msg)
assert.Equal(t, "form topic2", msg, "sub not unsubsrible topic1 success")
}()
PubTopic1("form topic1")
PubTopic2("form topic2")
time.Sleep(time.Duration(1) * time.Second)
}