Partial (or hacky ?) fixing of this issue would just make everything confusing
and decrease the quality of the unit test.
For example, the name of tests didn't match anymore what was tested.
Or we wouldn't know anymore how the test should be written.

git-svn-id: https://svn.erp5.org/repos/public/erp5/sandbox/amount_generator@38136 20353a03-c40f-0410-a6d1-a30d3c3de9de