Re: Does derby have an embedded Mode like Derby ?

In response to Paul Taylor <ijabz(at)fastmail(dot)fm>:

> Bill Moran wrote:
> > In response to Paul Taylor <ijabz(at)fastmail(dot)fm>:
> >
> >> Bill Moran wrote:
> >>
> >>> Then replace the DB client class with a class that returns fabricated
> >>> data for the purpose of your test.
> >>>
> >>>
> >> Won't work because I am writing SQL and I want to test the SQL is correct
> >>
> >
> > Well, be warned that not all alternatives to PostgreSQL will have the
> > same SQL compliance as Postgres ... so substituting another db backend
> > is going to be less than reliable.
> >
> > I hope you don't take these next comments as an attack or anything, but
> > I think your whole approach to testing is flawed. The fact that tests
> > are complicated to set up and take a while to run is just life. I mean,
> > who cares if they take a while to run? Computers don't need to sleep, so
> > have them run overnight. And any test that's actually comprehensive is
> > going to take effort to write anyway. Thing is, you'll only be setting
> > up the PG startup/teardown stuff once, then any test that needs it can
> > call those functions/scripts/whatever. If you need more computers or a
> > different OS, then virtualize. All the tools are there for you.
>
> No, I don't take it personally but I think you are missing the point
> these are UNIT test not INTEGRATION tests.

I don't feel like I've missed the point, but I wonder if your definition
of "unit" test includes something that I'm not familiar with. We do
extensive unit tests that require a DB backend to work. I mean, if
you're unit testing the DB client class, it needs a back end to talk
to.

> As such they need to be run
> everytime a developer wants to commit some changes to the codebase and
> therefore should be quick and unobstrusive to run.

And I don't see how that precludes having a DB there that the developer
can connect to for testing. We have a DB server specifically for this
purpose so that devs can use it to test out their changes before
checking code in. More specifically, we have one virtual machine that
serves as a dedicated DB server for developer testing.

I mean, if it won't work for you, OK. I'm just offering suggestions, and
honestly am confused as to what your actual holdup is.

--
Bill Moran
http://www.potentialtech.com
http://people.collaborativefusion.com/~wmoran/