if err != nil {
		t.Fatal(err)
	}

	if _, err = r.LookupHost(context.Background(), "go.dev"); err != nil {
		t.Fatal(err)
	}
}

func TestLookupOrderFilesNoSuchHost(t *testing.T) {
	defer func(orig string) { hostsFilePath = orig }(hostsFilePath)
	if runtime.GOOS != "openbsd" {
		defer setSystemNSS(getSystemNSS(), 0)
		setSystemNSS(nssStr(t, "hosts: files"), time.Hour)