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

[Steven Schveighoffer]

On 9/19/22 7:48 PM, mw wrote:
> 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.
> 

I don't see any specific command to do it in dub itself.

I've recently discovered that `dub describe` gives you the directories 
of all your dependencies in a JSON format.

I used this to write an install script for dependent library artifacts. 
See 
[here](https://github.com/schveiguy/raylib-d/blob/master/install/source/app.d).

It would be pretty easy to do the same thing to run dependency unit 
tests. e.g. something like `foreach(dir; getDubDependencyDirectories) { 
cd(dir); execute("dub", "test"); }`

You'd have to write getDubDependencyDirectories. But it's just parsing JSON.

-Steve