Fix typo

Author: akarabashov

x/pki/handler_add_noc_root_cert_test.go

@@ -11,7 +11,7 @@ import (
 	"github.com/zigbee-alliance/distributed-compliance-ledger/x/pki/types"
 )
 
-func TestHandler_AddNocX509RootCert_SendorNotVendor(t *testing.T) {
+func TestHandler_AddNocX509RootCert_SenderNotVendor(t *testing.T) {
 	setup := Setup(t)
 
 	addNocX509RootCert := types.NewMsgAddNocX509RootCert(setup.Trustee1.String(), testconstants.RootCertPem)

x/pki/keeper/msg_server_propose_add_x_509_root_cert.go

@@ -63,7 +63,7 @@ func (k msgServer) ProposeAddX509RootCert(goCtx context.Context, msg *types.MsgP
 		// Issuer and authorityKeyID must be the same as ones of exisiting certificates with the same subject and
 		// subjectKeyID. Since new certificate is self-signed, we have to ensure that the exisiting certificates are
 		// self-signed too, consequently are root certificates.
-		if !existingCertificates.Certs[0].IsRoot {
+		if !existingCertificate.IsRoot {
 			return nil, pkitypes.NewErrUnauthorizedCertIssuer(x509Certificate.Subject, x509Certificate.SubjectKeyID)
 		}