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package client
import (
"sync"
"sync/atomic"
"testing"
"github.com/stretchr/testify/assert"
)
func TestNotifyChannel(t *testing.T) {
chans := newChannels[int, int](10)
chanKey := 1
rx := chans.add(chanKey)
chanKey2 := 2
rx2 := chans.add(chanKey2)
var wg sync.WaitGroup
wg.Add(1)
go func() {
for i := 0; i < 50; i++ {
err := chans.notify(chanKey, i)
assert.Nil(t, err)
}
// drop the channel
tx := chans.remove(chanKey)
close(tx)
wg.Done()
}()
wg.Add(1)
go func() {
for i := 0; i < 50; i++ {
err := chans.notify(chanKey2, i)
assert.Nil(t, err)
}
// drop the channel
tx := chans.remove(chanKey2)
close(tx)
wg.Done()
}()
var receivedItem atomic.Int32
wg.Add(1)
go func() {
for range rx {
receivedItem.Add(1)
}
wg.Done()
}()
wg.Add(1)
go func() {
for range rx2 {
receivedItem.Add(1)
}
wg.Done()
}()
wg.Wait()
assert.Equal(t, receivedItem.Load(), int32(100))
}
func TestRemoveChannel(t *testing.T) {
chans := newChannels[int, int](1)
chanKey := 1
rx := chans.add(chanKey)
tx := chans.remove(chanKey)
assert.Equal(t, chans.length(), 0, "channels should be empty")
tx <- 3
val := <-rx
assert.Equal(t, val, 3)
tx = chans.remove(chanKey)
assert.Nil(t, tx)
err := chans.notify(chanKey, 1)
assert.NotNil(t, err)
}
func TestClearChannels(t *testing.T) {
chans := newChannels[int, int](1)
chanKey := 1
rx := chans.add(chanKey)
chans.clear()
assert.Equal(t, chans.length(), 0, "channels should be empty")
_, ok := <-rx
assert.False(t, ok, "chan closed")
tx := chans.remove(chanKey)
assert.Nil(t, tx)
err := chans.notify(chanKey, 1)
assert.NotNil(t, err)
}
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