// GetSparseCertTestCases produces a series of cert configurations and their intended outcomes.
func GetSparseCertTestCases(t *testing.T) []CertTestCase {

	caCert, caKey := CreateCACert(t)
	fpCACert, fpCAKey := CreateCACert(t)
	etcdCACert, etcdCAKey := CreateCACert(t)

	fpCert, fpKey, _ := CreateTestCert(t, fpCACert, fpCAKey, certutil.AltNames{})

	return []CertTestCase{
		{
			Name: "nothing present",
		},
		{

	testutil "k8s.io/kubernetes/cmd/kubeadm/test"
)

func TestWriteCertificateAuthorityFilesIfNotExist(t *testing.T) {
	setupCert, setupKey := certstestutil.CreateCACert(t)
	caCert, caKey := certstestutil.CreateCACert(t)

	var tests = []struct {
		setupFunc     func(pkiDir string) error
		expectedError bool
		expectedCa    *x509.Certificate
	}{
		{ // ca cert does not exists > ca written