add the file settings_dev.py to be cleaned, set cache timeout to 0 (i.e. disable cache for tests)
define ("BROWSERS", ['Chrome']);
define ("WORKSPACE_URL", '<workspace-url>'); // In http://IP_ADDRESS:PORT_NUM/ format
define ("USER_ADMIN", '<admin-login>');
define ("PASS_ADMIN", '<admin-password>');
define ("USER_EDIT", '');
define ("PASS_EDIT", '');
define ("USER_COM", '');
define ("PASS_COM", '');
define ("USER_OBSERV", '');
define ("PASS_OBSERV", '');
function define (name, value) {
Object.defineProperty (exports, name, {
value: value,
enumerable: true
});
}