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v/vlib/sync/channel_close_test.v

74 lines
1.3 KiB
V

import sync
fn do_rec(ch chan int, resch chan i64) {
mut sum := i64(0)
for {
a := <-ch or {
break
}
sum += a
}
assert ch.closed == true
println(sum)
resch <- sum
}
fn do_send(ch chan int) {
for i in 0 .. 8000 {
ch <- i
}
assert ch.closed == false
ch.close()
assert ch.closed == true
}
fn test_channel_close_buffered_multi() {
ch := chan int{cap: 10}
resch := chan i64{}
go do_rec(ch, resch)
go do_rec(ch, resch)
go do_rec(ch, resch)
go do_rec(ch, resch)
go do_send(ch)
mut sum := i64(0)
for _ in 0 .. 4 {
sum += <- resch
}
assert sum == i64(8000) * (8000 - 1) / 2
}
fn test_channel_close_unbuffered_multi() {
ch := chan int{}
resch := chan i64{}
go do_rec(ch, resch)
go do_rec(ch, resch)
go do_rec(ch, resch)
go do_rec(ch, resch)
go do_send(ch)
mut sum := i64(0)
for _ in 0 .. 4 {
sum += <-resch
}
assert sum == i64(8000) * (8000 - 1) / 2
}
fn test_channel_close_buffered() {
ch := chan int{cap: 100}
resch := chan i64{}
go do_rec(ch, resch)
go do_send(ch)
mut sum := i64(0)
sum += <-resch
assert sum == i64(8000) * (8000 - 1) / 2
}
fn test_channel_close_unbuffered() {
ch := chan int{}
resch := chan i64{cap: 100}
go do_rec(ch, resch)
go do_send(ch)
mut sum := i64(0)
sum += <-resch
assert sum == i64(8000) * (8000 - 1) / 2
}