Function Go

testutil/go.go:10–23

Go runs fn in a goroutine and waits until fn has completed before test completion. Done is returned for optionally waiting for fn to exit.

(t *testing.T, fn func())

// test completion. Done is returned for optionally waiting for fn to
// exit.
func Go(t *testing.T, fn func()) (done <-chan struct{}) {
	t.Helper()

	doneC := make(chan struct{})
	t.Cleanup(func() {
		<-doneC
	})
	go func() {
		fn()
		close(doneC)
	}()

	return doneC
}