diff --git a/engine/globalvars_test.go b/engine/globalvars_test.go
new file mode 100644
index 000000000..cdcc49175
--- /dev/null
+++ b/engine/globalvars_test.go
@@ -0,0 +1,52 @@
+/*
+Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
+Copyright (C) ITsysCOM GmbH
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>
+*/
+package engine
+
+import (
+	"net/http"
+	"testing"
+)
+
+func TestGlobalvarsSetHTTPPstrTransport(t *testing.T) {
+	tmpTransport := httpPstrTransport
+	defer func() {
+		SetHTTPPstrTransport(tmpTransport)
+	}()
+	newTransport := &http.Transport{
+		DisableKeepAlives: true,
+	}
+	SetHTTPPstrTransport(newTransport)
+	if httpPstrTransport != newTransport {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", newTransport, httpPstrTransport)
+	}
+}
+
+func TestGlobalvarsGetHTTPPstrTransport(t *testing.T) {
+	tmpTransport := httpPstrTransport
+	defer func() {
+		SetHTTPPstrTransport(tmpTransport)
+	}()
+	newTransport := &http.Transport{
+		DisableKeepAlives: true,
+	}
+	SetHTTPPstrTransport(newTransport)
+	getTransport := GetHTTPPstrTransport()
+	if getTransport != newTransport {
+		t.Errorf("\nExpected <%+v>, \nReceived <%+v>", newTransport, getTransport)
+	}
+}