Writing good tests for Django applications
- by Ludwik Trammer
I've never written any tests in my life, but I'd like to start writing tests for my Django projects. I've read some articles about tests and decided to try to write some tests for an extremely simple Django app or a start.
The app has two views (a list view, and a detail view) and a model with four fields:
class News(models.Model):
title = models.CharField(max_length=250)
content = models.TextField()
pub_date = models.DateTimeField(default=datetime.datetime.now)
slug = models.SlugField(unique=True)
I would like to show you my tests.py file and ask:
Does it make sense?
Am I even testing for the right things?
Are there best practices I'm not following, and you could point me to?
my tests.py (it contains 11 tests):
# -*- coding: utf-8 -*-
from django.test import TestCase
from django.test.client import Client
from django.core.urlresolvers import reverse
import datetime
from someproject.myapp.models import News
class viewTest(TestCase):
def setUp(self):
self.test_title = u'Test title: bareksc'
self.test_content = u'This is a content 156'
self.test_slug = u'test-title-bareksc'
self.test_pub_date = datetime.datetime.today()
self.test_item = News.objects.create(
title=self.test_title,
content=self.test_content,
slug=self.test_slug,
pub_date=self.test_pub_date,
)
client = Client()
self.response_detail = client.get(self.test_item.get_absolute_url())
self.response_index = client.get(reverse('the-list-view'))
def test_detail_status_code(self):
"""
HTTP status code for the detail view
"""
self.failUnlessEqual(self.response_detail.status_code, 200)
def test_list_status_code(self):
"""
HTTP status code for the list view
"""
self.failUnlessEqual(self.response_index.status_code, 200)
def test_list_numer_of_items(self):
self.failUnlessEqual(len(self.response_index.context['object_list']), 1)
def test_detail_title(self):
self.failUnlessEqual(self.response_detail.context['object'].title, self.test_title)
def test_list_title(self):
self.failUnlessEqual(self.response_index.context['object_list'][0].title, self.test_title)
def test_detail_content(self):
self.failUnlessEqual(self.response_detail.context['object'].content, self.test_content)
def test_list_content(self):
self.failUnlessEqual(self.response_index.context['object_list'][0].content, self.test_content)
def test_detail_slug(self):
self.failUnlessEqual(self.response_detail.context['object'].slug, self.test_slug)
def test_list_slug(self):
self.failUnlessEqual(self.response_index.context['object_list'][0].slug, self.test_slug)
def test_detail_template(self):
self.assertContains(self.response_detail, self.test_title)
self.assertContains(self.response_detail, self.test_content)
def test_list_template(self):
self.assertContains(self.response_index, self.test_title)
