[Zope] Product loading during ZopeTestCase startup

Hello, since few days i'am facing a strange problem with egg loading in tests. One egg called project.site_policy is never loaded in the Products namespace: the ZopeLite.hasPackage('project.site_policy') always returns False. Where is the code that loads eggs and products outside SOFTWARE_HOME/lib/python/Products ? regards -- "...[Linux] peut communiquer à travers n'importe quel medium excepté les signaux de fumée." -+- Dr. Greg Wettstein, Roger Maris Cancer Center -+-