code: func AssertCertificateHasOrganizations(t *testing.T, cert *x509.Certificate, organizations ...string) {
  	for _, organization := range organizations {
  		found := false
  		for i := range cert.Subject.Organization {
  			if cert.Subject.Organization[i] == organization {
  				found = true
  			}
  		}
  		if !found {
  			t.Errorf("cert does not contain Subject.Organization %s as expected", organization)
  		}
  	}
  }
docs: // AssertCertificateHasOrganizations is a utility function for kubeadm testing that asserts if a given certificate has
  // the expected Subject.Organization