with respect to the struture you listed, where is the test script being run from?
Just a 
use lib qw( tools/DBQuery );

[download]
might do the trick. Note that 'use lib' takes a path, not a namespace as an argument ...

In reply to Re: how to update @INC at runtime to use custom modules in other folder? by davidrw
in thread how to update @INC at runtime to use custom modules in other folder? by edwardt_tril

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