MAID-582_passing_DataManagerDatabase_tests

The vault and routing is currently / and will be in near future to undertake some major changes,
which means even the test got passed recently may got failed later on and need to be debugged / updated.
The log message will be useful at that time and no need to figure out where shall put the logs at that time.
(actually that was what happened on Friday. The test was pass the first time being added, however got failed recently.
And I have to spend some additional time to put back these logs.)