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package channels
import "testing"
func TestRingChannel(t *testing.T) {
var ch Channel
ch = NewRingChannel(Infinity) // yes this is rather silly, but it should work
testChannel(t, "infinite ring-buffer channel", ch)
ch = NewRingChannel(None)
go func() {
for i := 0; i < 1000; i++ {
ch.In() <- i
}
ch.Close()
}()
prev := -1
for i := range ch.Out() {
if prev >= i.(int) {
t.Fatal("ring channel prev", prev, "but got", i.(int))
}
}
ch = NewRingChannel(10)
for i := 0; i < 1000; i++ {
ch.In() <- i
}
ch.Close()
for i := 990; i < 1000; i++ {
val := <-ch.Out()
if i != val.(int) {
t.Fatal("ring channel expected", i, "but got", val.(int))
}
}
if val, open := <-ch.Out(); open == true {
t.Fatal("ring channel expected closed but got", val)
}
ch = NewRingChannel(None)
ch.In() <- 0
ch.Close()
if val, open := <-ch.Out(); open == true {
t.Fatal("ring channel expected closed but got", val)
}
ch = NewRingChannel(2)
testChannelConcurrentAccessors(t, "ring channel", ch)
}
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