| 1 | const n = 1000 |
| 2 | |
| 3 | fn f(ch chan f64) { |
| 4 | mut s := 0.0 |
| 5 | for _ in 0 .. n { |
| 6 | s += <-ch |
| 7 | } |
| 8 | assert s == f64(n * (n + 1) / 2) |
| 9 | ch.close() |
| 10 | } |
| 11 | |
| 12 | fn do_send(ch chan f64, val f64) ?f64 { |
| 13 | ch <- val? |
| 14 | return val + 1.0 |
| 15 | } |
| 16 | |
| 17 | fn test_push_propargate() { |
| 18 | ch := chan f64{} |
| 19 | spawn f(ch) |
| 20 | mut s := 1.0 |
| 21 | for { |
| 22 | s = do_send(ch, s) or { break } |
| 23 | } |
| 24 | assert s == f64(n + 1) |
| 25 | } |
| 26 |