Only disable GC when a test is run, to avoid disabling GC for everybody importing the file. I'm not sure if GC should be re-enabled at tear down, and prefer not to do so for the moment.


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@21167 20353a03-c40f-0410-a6d1-a30d3c3de9de