fix unit tests by adding missing FPNewclientcertificatecredential mock expectation

Author: b-lnimmala

pkg/frontend/shared_test.go

@@ -21,6 +21,7 @@ import (
 	"github.com/sirupsen/logrus"
 	"go.uber.org/mock/gomock"
 
+	"github.com/Azure/azure-sdk-for-go/sdk/azidentity"
 	"github.com/Azure/azure-sdk-for-go/sdk/security/keyvault/azsecrets"
 
 	"github.com/Azure/ARO-RP/pkg/api"
@@ -128,6 +129,7 @@ func newTestInfraWithFeatures(t *testing.T, features map[env.Feature]bool) *test
 	_env.EXPECT().MISEAuthorizer().AnyTimes().Return(miseadapter.NewFakeAuthorizer(true, true))
 	_env.EXPECT().Domain().AnyTimes().Return("aro.example")
 	_env.EXPECT().Listen().AnyTimes().Return(l, nil)
+	_env.EXPECT().FPNewClientCertificateCredential(gomock.Any(), gomock.Any()).AnyTimes().Return(&azidentity.ClientCertificateCredential{}, nil)
 	for f, val := range features {
 		_env.EXPECT().FeatureIsSet(f).AnyTimes().Return(val)
 	}