Klugier Messages: 882 Registered: September 2012 Location: Poland, Kraków
This flag should be passed via main configuration. Here is the screenshot:
The idea behind this configuration is to have tests within the same package. You could move it to separate directory like Test etc. This is very handy, because thanks to that you do not need to jump between packages (main package vs test package).
If for some reasons the configuration is not available by default on your Upp installation - please try to upgrade to the latest version. The .upp file contains appropriate configuration.