End-to-end test fails when trying to create an existing L2VPN

[gretelliz]

Testing the following example gives 'return status 400: PCE error: Can't find a valid vlan breakdown solution'.

        api_url = SDX_CONTROLLER + '/l2vpn/1.0'
        payload = {
            "name": "VLAN between TENET/1000 and SAX/1000", 
            "endpoints": [
                {"port_id": "urn:sdx:port:tenet.ac.za:Tenet03:50", "vlan": "1000"},
                {"port_id": "urn:sdx:port:sax.net:Sax01:50","vlan": "1000"}
            ]
        }
        response = requests.post(api_url, json=payload)
        assert response.status_code == 201, response.text

        time.sleep(30)

        response = requests.post(api_url, json=payload) // Returns 400

Return code 409 should be obtained.
"409: L2VPN Service already exists"