how to use dub to run all / chosen dependency lib's unittests

[mw via Digitalmars-d-learn]

Hi,

I'm using dub.json to specify the dependencies libs for my 
project.

I'm just wondering how I can use dub to run all the tests of 
those dependencies libs (of the transitive closure of *all* the 
libs) to make sure my project is built on a very solid foundation?

I know this could be very time-consuming, probably will run it 
over-night.

On the other hand, what's the command to run dub test on a single 
dependency lib?


Thanks.