return
		}
	}
	t.Error("cert has not ClientAuth usage as expected")
}

// AssertCertificateHasServerAuthUsage is a utility function for kubeadm testing that asserts if a given certificate has
// the expected ExtKeyUsageServerAuth
func AssertCertificateHasServerAuthUsage(t *testing.T, cert *x509.Certificate) {
	for i := range cert.ExtKeyUsage {
		if cert.ExtKeyUsage[i] == x509.ExtKeyUsageServerAuth {