func HasParallelism() bool {
	switch runtime.GOOS {
	case "js", "wasip1":
		return false
	}
	return true
}

// MustHaveParallelism checks that the current system can execute multiple
// threads in parallel. If not, MustHaveParallelism calls t.Skip with an explanation.
func MustHaveParallelism(t testing.TB) {
	if !HasParallelism() {
		t.Skipf("skipping test: no parallelism available on %s/%s", runtime.GOOS, runtime.GOARCH)
	}

			return false
		}
	}
	for _, ncnt := range n {
		if ncnt != 0 {
			return false
		}
	}
	return true
}

func TestGoroutineProfileConcurrency(t *testing.T) {
	testenv.MustHaveParallelism(t)

	goroutineProf := Lookup("goroutine")

	profilerCalls := func(s string) int {
		return strings.Count(s, "\truntime/pprof.runtime_goroutineProfileWithLabels+")
	}