django-test-tools 2.2.3

Description:

djangotesttools 2.2.3

Simple tests tools to make testing faster and easier. Most of the tools are to do a quick scaffolding for tests.
The tools presume a naming convention:

Tests: Are named with the convention TestCaseModelName. For a model named Poll the test would be generated
as the testing class would be TestCasePoll
Factories: Are named with the convention ModelName. For a model named Poll the test would be generated
as the testing class would be PollFactory
Serializers: Are named with the convention TestCaseSerializer. For a model named Poll the test would be generated
as the testing class would be PollSerializer

Compatibility matrix:


Python version
Django 1.11.x
Django 2.2.x
Django 3.0.x

3.7
x
x
x

3.6
x
x
x




Documentation
The full documentation is at https://django-test-tools.readthedocs.io.


Quickstart
Install Django Test Tools:
pip install django-test-tools
In your settings.py file add it to your INSTALLED_APPS
INSTALLED_APPS = (
...
'django_test_tools.apps.DjangoTestToolsConfig',
...
)
Create an output folder in the root folder of you project, name it what ever you want, and add the settings
variable TEST_OUTPUT_PATH pointing to it. Make sure to add this folder to your .gitignore file.
import environ

ROOT_DIR = (
environ.Path(__file__) - 3
) # (my_project/config/settings/base.py - 3 = alpha_clinic/)
APPS_DIR = ROOT_DIR.path("my_project")
TEST_OUTPUT_PATH = ROOT_DIR.path("output").root


Features

Factory Generator
To create Factory Boy style factories.
For a django project named polling_app with an app name poll the following command will generate the scaffolding for
the tests for all the models in th app polls.
$ python manage.py generate_factories polling_app.polls
For the following models
class OperatingSystem(models.Model):
name = models.CharField(max_length=20)
version = models.CharField(max_length=5)
licenses_available = models.IntegerField()
cost = models.DecimalField(decimal_places=2, max_digits=7)

class Meta:
unique_together = ('name', 'version')


class Server(models.Model):
PRODUCTION = 'PROD'
DEVELOPMENT = 'DEV'
USE_CHOICES = ((PRODUCTION, 'Prod'),
(DEVELOPMENT, 'Dev'))
name = models.CharField(max_length=20, unique=True)
notes = models.TextField()
virtual = models.BooleanField()
ip_address = models.GenericIPAddressField()
created = models.DateTimeField()
online_date = models.DateField()
operating_system = models.ForeignKey(OperatingSystem, related_name='servers', on_delete=models.CASCADE)
server_id = models.CharField(max_length=6)
use = models.CharField(max_length=4, choices=USE_CHOICES, default=DEVELOPMENT)
comments = models.TextField(null=True, blank=True)
running python manage.py generate_factories example.servers > ./output/factories.py will create the following factories
import string

from random import randint
from pytz import timezone

from django.conf import settings

from factory import Iterator
from factory import LazyAttribute
from factory import SubFactory
from factory import lazy_attribute
from factory.django import DjangoModelFactory, FileField
from factory.fuzzy import FuzzyText, FuzzyInteger
from faker import Factory as FakerFactory

from example.servers.models import OperatingSystem, Server

faker = FakerFactory.create()


class OperatingSystemFactory(DjangoModelFactory):
class Meta:
model = OperatingSystem

name = LazyAttribute(lambda x: faker.text(max_nb_chars=20))
version = LazyAttribute(lambda x: faker.text(max_nb_chars=5))
licenses_available = LazyAttribute(lambda o: randint(1, 100))
cost = LazyAttribute(lambda x: faker.pydecimal(left_digits=5, right_digits=2, positive=True))

class ServerFactory(DjangoModelFactory):
class Meta:
model = Server

name = LazyAttribute(lambda x: faker.text(max_nb_chars=20))
notes = LazyAttribute(lambda x: faker.paragraph(nb_sentences=3, variable_nb_sentences=True))
virtual = Iterator([True, False])
ip_address = LazyAttribute(lambda o: faker.ipv4(network=False))
created = LazyAttribute(lambda x: faker.date_time_between(start_date="-1y", end_date="now",
tzinfo=timezone(settings.TIME_ZONE)))
online_date = LazyAttribute(lambda x: faker.date_time_between(start_date="-1y", end_date="now",
tzinfo=timezone(settings.TIME_ZONE)))
operating_system = SubFactory(OperatingSystemFactory)
server_id = LazyAttribute(lambda x: FuzzyText(length=6, chars=string.digits).fuzz())
use = Iterator(Server.CHOICES, getter=lambda x: x[0])
comments = LazyAttribute(lambda x: faker.paragraph(nb_sentences=3, variable_nb_sentences=True))
Important the use attribute is created incorrectly. When you use choices you need to manually change it to USE_CHOICES.
use = Iterator(Server.USE_CHOICES, getter=lambda x: x[0])


Model Test Case Generator
$ python manage.py generate_model_test_cases project.app


Serializer Generator
$ python manage.py generate_serializers project.app -s ModelSerializer


Writing assertions
One of the most boring steps of writing tests is checking the content of static dictionaries.
You now the content of the dictionary and you need to compare it with a result.
In the following code the assertions for the data dictionary will be generated in the
fn file. IMPORTANT the name of the dictionary in this case data must be the same as
the second argument of the method in order to generate the correct assertions.
fn = './output/_my_assertions.py'
data = [
{'name': 'kilo', 'password': 9999,
'groups': ['admin', 'users'],
'config': {'server': 'all', 'bulding': 116}},
{'name': 'pasto', 'password': 'nogo',
'groups': ['users'],
'config': {'server': 'database', 'bulding': None},
'created_date': date(2016, 1, 3),
'modified': '2016-10-01'}
]
filename = write_assertions(data, 'data', filename=fn, type_only=True,excluded_keys=['config']))
The result of this script:
self.assertEqual(len(data), 2)
self.assertEqual(len(data[0]['groups']), 2)
self.assertEqual(data[0]['groups'][0], 'admin')
self.assertEqual(data[0]['groups'][1], 'users')
self.assertEqual(data[0]['name'], 'kilo')
self.assertEqual(data[0]['password'], 9999)
self.assertEqual(len(data[1]['groups']), 1)
self.assertEqual(data[1]['groups'][0], 'users')
self.assertEqual(data[1]['name'], 'pasto')
self.assertEqual(data[1]['password'], 'nogo')



Running Tests
Does the code actually work?
source <YOURVIRTUALENV>/bin/activate
(myenv) $ python runtests.py tests


Pushing code to Pypi

Setup environment


source ./venv/bin/activate


Updated version. Instead of patch you could also use major o minor depending on the level of the release.


$ make patch


Check the .travis.yml to make sure the versions of Django are the latests. Check in https://www.djangoproject.com/download/
for the latest versions.
Check setup.py for Django and Python versions.
Close the git-flow release manually.
Push to repo, Travis CI should deploy to pypi


make travis-push



Credits
Tools used in rendering this package:

Cookiecutter
cookiecutter-djangopackage



History
0.1.0 (2017-04-26)

First release on PyPI.

License

For personal and professional use. You cannot resell or redistribute these repositories in their original state.

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