From 6dc740f0928e4c1b43697d8e2d4dbc9804911e79 Mon Sep 17 00:00:00 2001 From: Brad Fitzpatrick Date: Thu, 10 Oct 2019 19:23:03 +0000 Subject: [PATCH] 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 --- test/goprint.go | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/test/goprint.go b/test/goprint.go index 57eeac53a8..d44b259081 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 } }