<-ch
}

func TestRaceMapRange2(t *testing.T) {
	m := make(map[int]int)
	ch := make(chan bool, 1)
	go func() {
		for range m {
		}
		ch <- true
	}()
	m[1] = 1
	<-ch
}

func TestNoRaceMapRangeRange(t *testing.T) {
	m := make(map[int]int)
	// now the map is not empty and range triggers an event
	// should work without this (as in other tests)
	// so it is suspicious if this test passes and others don't
	m[0] = 0