If you come up with some techniques you'd like to share, please post
them to the wiki:

http://trac.turbogears.org

This *is* an area that needs to be filled in... I just haven't
personally had the time to do so, so any help is a boon..

Thanks!
Kevin

On 11/4/05, Jason Chu <[EMAIL PROTECTED]> wrote:
> Well here's something interesting.  In the simple cases, PackageHub doesn't
> try to open a connection until it's actually trying to access the database.
> If you have a subclass of a subclass of a SQLObject (in my case it's
> SomeClass->Modifiable->SQLObject) some of the metaclass magic behind
> SQLObject tries to access that connection when you import the module.
>
> I don't know enough about metaclasses to really help narrow it down more
> than that.
>
> I guess I'll try the in-memory sqlite databases and some custom creation,
> drop, and connection opening code in my tests.
>
> Thanks,
> Jason
>
> On Fri, Nov 04, 2005 at 02:06:31PM -0500, Kevin Dangoor wrote:
> >
> > Hi Jason,
> >
> > A few comments that may clear things up and make it easier:
> >
> > - you can set model.__connection__ to something else, if you need to
> > change it for testing purposes
> >
> > - PackageHub does not even look up the connection configuration until
> > it's needed. It should be possible to close and clear the connection
> > as well when doing tests.
> >
> > - sqlite is *great* for unit tests because you can create in-memory
> > databases. You could use sqlite most of the time and sometimes run
> > against your real database engine to verify correct operation.
> >
> >
> > I don't remember what all is done by SQLObject's test code, but I was
> > guessing that we'd be able to use that code. There's no reason that
> > tests really need to use the PackageHub for their connections.
> >
> > Foreign key constraints are always a pain when dropping a database. I
> > don't know if anyone's written code for SQLObject to make this more
> > convenient.
> >
> > Kevin
> >
> > On 11/4/05, Jason Chu <[EMAIL PROTECTED]> wrote:
> > > So far my application isn't at a stage to do functional or even unit tests
> > > of the controllers, but I do have a bunch of model objects and a little 
> > > bit
> > > of logic around them.
> > >
> > > I read the little testing doc and it says that there is no support for
> > > testing model objects.  I'm now trying to figure out what would be needed.
> > >
> > > The way I've done SQLObject testing before was starting with a fresh
> > > database each test and only creating the data that I needed for that
> > > specific test.  It's slow, I know, but it's precise.
> > >
> > > The problem, in the case of TurboGears, is the PackageHub.  All my objects
> > > are created with PackageHub or AutoConnectionHub connections and I'd have
> > > to change the connection for the different SQLObject classes any time I
> > > wanted to use them.  Will I essentially be reimplementing
> > > sqlobject.tests.setupClass and sqlobject.tests.InstalledTestDatabase to be
> > > able to test my SQLObject classes through testgears?
> > >
> > > Would I want to get around the PackageHub entirely or just run
> > > turbogears.database.set_db_uri before importing any model objects?  I'd
> > > still have to worry about creating the tables before the tests, but I'm
> > > pretty sure I can get all that from the InstalledTestDatabase class.
> > >
> > > One more quick question: is there an easy way to clear all tables without
> > > running amuck of foreign key constraints?
> > >
> > > Jason
> > >
> > > --
> > > If you understand, things are just as they are.  If you do not understand,
> > > things are just as they are.
> > >
> > >
> > >
> >
> >
> > --
> > Kevin Dangoor
> > Author of the Zesty News RSS newsreader
> >
> > email: [EMAIL PROTECTED]
> > company: http://www.BlazingThings.com
> > blog: http://www.BlueSkyOnMars.com
> >
>
> --
> If you understand, things are just as they are.  If you do not understand,
> things are just as they are.
>
>
>


--
Kevin Dangoor
Author of the Zesty News RSS newsreader

email: [EMAIL PROTECTED]
company: http://www.BlazingThings.com
blog: http://www.BlueSkyOnMars.com

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