diff --git a/pkg/certificates/cli.go b/pkg/certificates/cli.go
index 4e86b9e34..49dd16c06 100644
--- a/pkg/certificates/cli.go
+++ b/pkg/certificates/cli.go
@@ -14,6 +14,7 @@ import (
 	"github.com/ghjm/cmdline"
 )
 
+// InitCA Initialize Certificate Authority.
 func InitCA(opts *CertOptions, certOut, keyOut string) error {
 	ca, err := CreateCA(opts, &RsaWrapper{})
 	if err == nil {
@@ -56,6 +57,7 @@ func (ica initCA) Run() (err error) {
 	return InitCA(opts, ica.OutCert, ica.OutKey)
 }
 
+// MakeReq Create Certificate Request.
 func MakeReq(opts *CertOptions, keyIn, keyOut, reqOut string) error {
 	var req *x509.CertificateRequest
 	var key *rsa.PrivateKey
@@ -151,6 +153,7 @@ func (mr makeReq) Run() error {
 	return MakeReq(opts, mr.InKey, mr.OutKey, mr.OutReq)
 }
 
+// SignReq Sign Certificate Request.
 func SignReq(opts *CertOptions, caCrtPath, caKeyPath, reqPath, certOut string, verify bool) error {
 	ca := &CA{}
 	var err error
diff --git a/pkg/certificates/cli_test.go b/pkg/certificates/cli_test.go
index 71d51f240..663873e74 100644
--- a/pkg/certificates/cli_test.go
+++ b/pkg/certificates/cli_test.go
@@ -24,11 +24,11 @@ func TestInitCA(t *testing.T) {
 			name: "Positive test",
 			args: args{
 				opts: &certificates.CertOptions{
-					CommonName: "Ansible Automation Controller Nodes Mesh",
 					Bits:       8192,
+					CommonName: "Ansible Automation Controller Nodes Mesh",
 				},
-				certOut: "receptor_cert.pem",
-				keyOut:  "receptor_key.pem",
+				certOut: "/tmp/receptor_cert.pem",
+				keyOut:  "/tmp/receptor_key.pem",
 			},
 			wantErr: false,
 		},
@@ -39,8 +39,8 @@ func TestInitCA(t *testing.T) {
 					Bits:       -1,
 					CommonName: "Ansible Automation Controller Nodes Mesh",
 				},
-				certOut: "receptor_cert.pem",
-				keyOut:  "receptor_key.pem",
+				certOut: "/tmp/receptor_cert.pem",
+				keyOut:  "/tmp/receptor_key.pem",
 			},
 			wantErr: true,
 		},
@@ -54,3 +54,51 @@ func TestInitCA(t *testing.T) {
 		})
 	}
 }
+
+func TestMakeReq(t *testing.T) {
+	type args struct {
+		opts   *certificates.CertOptions
+		keyIn  string
+		keyOut string
+		reqOut string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{
+			name: "Positive test",
+			args: args{
+				opts: &certificates.CertOptions{
+					Bits:       8192,
+					CommonName: "Ansible Automation Controller Nodes Mesh",
+				},
+				keyIn:  "/tmp/receptor_key.pem",
+				keyOut: "/tmp/receptor_key_out.pem",
+				reqOut: "/tmp/receptor_request_out.pem",
+			},
+			wantErr: false,
+		},
+		{
+			name: "Negative test",
+			args: args{
+				opts: &certificates.CertOptions{
+					Bits:       -1,
+					CommonName: "Ansible Automation Controller Nodes Mesh",
+				},
+				keyIn:  "/tmp/",
+				keyOut: "/tmp/receptor_key_out.pem",
+				reqOut: "/tmp/receptor_request_out.pem",
+			},
+			wantErr: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if err := certificates.MakeReq(tt.args.opts, tt.args.keyIn, tt.args.keyOut, tt.args.reqOut); (err != nil) != tt.wantErr {
+				t.Errorf("MakeReq() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}