yea, i never go as far to check html either. ill take some of your thoughts and blend it into my process
as far as the strings go. thanks a ton, it all makes sense since strings are immutable. =) On May 6, 11:51 am, "Norman Harman" <[EMAIL PROTECTED]> wrote: > phillc wrote: > > > first: > > > ==== > > How does one develop tests for django web apps? > > im having trouble writing tests. > > i understand there are view tests, but those are so overly complex to > > write. > > i was just wondering how other people approach it, and if anyone can > > point me to some open source application that uses tests properly. > > i would love to give test driven development a try, but right now, i > > feel that my code is too bound to code in my view, which im having > > trouble making unit tests for. (id love to see a django project > > somewhere that was test driven) > > TDD is very hard. I rarely muster the discipline to do pure TDD. But, > TDD isn't required to have unittests, which are awesome by themselves. > > If you haven't already readhttp://www.djangoproject.com/documentation/testing/ > > View tests don't have to be complex, the minimal test for a non-form > view checks quite alot: > > urls.py > urlpatterns = patterns("specials.views", > url(r"^$", "ads", name="ts_ads")) > > tests.py > def test_specials(self): > url = reverse("ts_ads") > response = self.client.get(url) > self.assertTemplateUsed(response, "specials/ads.html") > > Basically if I write it I test it. Don't test that Django works or your > database works. They should have their own tests. > > For views I mostly don't check they return the expected html(it changes > too often during development and I think that is better handled with a > tool such as Selenium). Instead I check that they use correct template, > redirect to login page, don't raise exceptions, etc. I also have > written a custom UnitTest (extending Django's) that checks for empty > template vars using TEMPLATE_STRING_IF_INVALID='test_oops_test'. > > I do POST to views that have forms and check they work as expected. > Although, I usually check form validation in separate forms tests. > > I check forms with any custom validators or logic. > > I check every method I write for models and model managers including > things like __unicode__ via str(modelinstance). > > Also, Every time I find a bug I first write a unittest that fails > because of that bug. Then I fix the bug and check unittest then passes. > > > fourth: > > ==== > > i never understood this, why do people do > > > somevar = "blah blah %s" % anothervar > > > instead of "blah bla" + anothervar > > ? > > Since python strings are immutable using + causes a lot of unnecessary > copying. It's probably not such a big deal in rarely executed code but > is a real performance killer in loops. For consistency and clarity, > people tend to avoid using + with strings altogether. > > For example this is slow/unnecessary: > s = "" > for txt in somelist: > s += txt > print s > > The Pythonic way is to use a list: > s = list() > for txt in somelist: > s.append(txt) > print "".join(s) > > Joining a list of strings is neat because instead of "" you can use ", " > or "\n", "\t" which are all fairly common and join takes care of not > having a trailing ", ". > > For more seehttp://www.omahapython.org/IdiomaticPython.html > > > fifth: > > ==== > > in my models, a model object is only aware of the objects above it, > > and not below it. > > in C, i remember i just declared all functions, with no body to it, at > > the top of the file > > then all functions were aware of all functions. > > how do i do this in python? > > AFAIK you can't. In some places with Django you can put names in quotes > to have the same effect. > Seehttp://www.djangoproject.com/documentation/model-api/#relationships > > -- > Norman J. Harman Jr. 512 912-5939 > Technology Solutions Group, Austin American-Statesman > ___________________________________________________________________________ > Get out and about this spring with the Statesman! In print and online, > the Statesman has the area's Best Bets and recreation events. > Pick up your copy today or go to statesman.com 24/7. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/django-users?hl=en -~----------~----~----~----~------~----~------~--~---
