test: adjust a test to work with js/wasm's background goroutine
Fixes #34768
Change-Id: Ic73591f620cdee5bc7203483902e6ba98d2c442b
Reviewed-on: https://go-review.googlesource.com/c/go/+/200438
Reviewed-by: Bryan C. Mills <bcmills@google.com>
diff --git a/test/goprint.go b/test/goprint.go
index 57eeac5..d44b259 100644
--- a/test/goprint.go
+++ b/test/goprint.go
@@ -9,13 +9,24 @@
package main
import (
+ "log"
"runtime"
"time"
)
func main() {
+ numg0 := runtime.NumGoroutine()
+ deadline := time.Now().Add(10 * time.Second)
go println(42, true, false, true, 1.5, "world", (chan int)(nil), []int(nil), (map[string]int)(nil), (func())(nil), byte(255))
- for runtime.NumGoroutine() > 1 {
- time.Sleep(10*time.Millisecond)
+ for {
+ numg := runtime.NumGoroutine()
+ if numg > numg0 {
+ if time.Now().After(deadline) {
+ log.Fatalf("%d goroutines > initial %d after deadline", numg, numg0)
+ }
+ runtime.Gosched()
+ continue
+ }
+ break
}
}
