Re: Thoughts on "Love Your Database"

On Fri, May 20, 2016 at 10:43 PM, Guyren Howe <guyren(at)gmail(dot)com> wrote:

> On May 20, 2016, at 13:38 , Pierre Chevalier Géologue <
> pierrechevaliergeol(at)free(dot)fr> wrote:
> >
> > Le 04/05/2016 18:29, Szymon Lipiński a écrit :
> >> On the other hand, when I was trying to store all my logic in a
> >> database, there was just one thing that made me hate it. Testing.
> >> Testing the procedures inside the database was not easy, not funny, and
> >> too much time consuming.
> >
> > Yes, very good point.
>
> Are there any best practices or tricks to make this easier?
>

Strangely I have never had a problem testing stored procedures. You have
to create a data set for the tests of course and that is the hardest part,
but there are some really nice things:

1. If your test scripts always roll back you can run them on a production
database as a troubleshooting step
2. It is easy to hook things up to a TAP harness (whether using PgTAP or
some hand-rolled solution). I think it would be harder to connect to xunit
though. So use TAP ;-)
3. I usually create a test results table (in my test case, rolled back
after!) which stores the test description and pass status. That makes it
easy to check using other tools.

Usually I set aside a range of things (negative id's for example) for
testing purposes.

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