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package channels
import (
"math/rand"
"testing"
)
func TestResizableChannel(t *testing.T) {
var ch *ResizableChannel
ch = NewResizableChannel()
testChannel(t, "default resizable channel", ch)
ch = NewResizableChannel()
testChannelPair(t, "default resizable channel", ch, ch)
ch = NewResizableChannel()
ch.Resize(Infinity)
testChannel(t, "infinite resizable channel", ch)
ch = NewResizableChannel()
ch.Resize(Infinity)
testChannelPair(t, "infinite resizable channel", ch, ch)
ch = NewResizableChannel()
ch.Resize(5)
testChannel(t, "5-buffer resizable channel", ch)
ch = NewResizableChannel()
ch.Resize(5)
testChannelPair(t, "5-buffer resizable channel", ch, ch)
ch = NewResizableChannel()
testChannelConcurrentAccessors(t, "resizable channel", ch)
}
func TestResizableChannelOnline(t *testing.T) {
stopper := make(chan bool)
ch := NewResizableChannel()
go func() {
for i := 0; i < 1000; i++ {
ch.In() <- i
}
<-stopper
ch.Close()
}()
go func() {
for i := 0; i < 1000; i++ {
ch.Resize(BufferCap(rand.Intn(50) + 1))
}
close(stopper)
}()
for i := 0; i < 1000; i++ {
val := <-ch.Out()
if i != val.(int) {
t.Fatal("resizable channel expected", i, "but got", val.(int))
}
}
}
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