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46 lines
780 B
46 lines
780 B
package main
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import (
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"sync"
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"testing"
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"time"
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)
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func TestBroadcast(t *testing.T) {
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bs := NewBroadcastString()
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bs.WriteMessage("hello")
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time.Sleep(10 * time.Millisecond)
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c1 := bs.AddListener(nil)
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go func() {
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bs.WriteMessage("world")
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}()
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message := <-c1
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if message != "world" {
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t.Fatalf("expect message world, but got %s", message)
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}
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c2 := bs.AddListener(nil)
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go func() {
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bs.WriteMessage("tab")
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}()
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// test write multi
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wg := sync.WaitGroup{}
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wg.Add(2)
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go func() {
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message = <-c2
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if message != "tab" {
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t.Errorf("expect tab, but got %s", message)
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}
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wg.Done()
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}()
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go func() {
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message = <-c1
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if message != "tab" {
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t.Errorf("expect tab, but got %s", message)
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}
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wg.Done()
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}()
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wg.Wait()
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}
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