Use for questions about testing applications based upon the Python web framework Django, or the features provided in the module itself (django.test)
docs: https://docs.djangoproject.com/en/2.1/topics/testing/overview/
Questions tagged [django-tests]
450 questions
40
votes
4 answers
When I run test cases I get this error: psycopg2.OperationalError: cursor "_django_curs_140351416325888_23" does not exist
I'm trying to run test cases, but I get below error.
Run command : python manage.py test
Type 'yes' if you would like to try deleting the test database 'test_project_management_db', or 'no' to cancel: yes
Destroying old test database for alias…
Ankit Kumar Rathod
- 503
- 1
- 4
- 7
25
votes
3 answers
django update_or_create gets "duplicate key value violates unique constraint "
Maybe I misunderstand the purpose of Django's update_or_create Model method.
Here is my Model:
from django.db import models
import datetime
from vc.models import Cluster
class Vmt(models.Model):
added =…
Red Cricket
- 9,762
- 21
- 81
- 166
25
votes
2 answers
factory boy: define field that depends on other field
How to define a field that depends on other field using factory-boy?
For instance, I'd like to define an email that depends on the first name and last name of an User.
I tried using the post_generation decorator. However, my system requires the…
jsmedmar
- 1,025
- 10
- 21
20
votes
4 answers
Django Rest Framework API Client Custom Header
I am trying to use bulk update from drf-extensions. To make it work, there is a safeguard requiring the header "X-BULK-OPERATION": 'true'. I can get the application working using curl or my angular app, but in my tests I am trying to use…
Murphy4
- 1,499
- 2
- 15
- 22
19
votes
6 answers
What is actually assertEquals in Python?
I have the following test.py file in django. can you please explain this code?
from contacts.models import Contact
...
class ContactTests(TestCase):
"""Contact model tests."""
def test_str(self):
contact =…
Rockhound
- 407
- 1
- 3
- 9
16
votes
2 answers
How to avoid creating test database for testing in django?
I have written some test cases for my project when I run these test cases, it creates test database for alias 'default' every time, after giving message then destroy database. I am concern only with message, So How to avoid creating test database,…
Neelabh Singh
- 2,600
- 12
- 51
- 88
14
votes
3 answers
How to use pytest fixtures with django TestCase
How can I use a pytest fixture within a TestCase method? Several answers to similar questions seem to imply that my example should work:
import pytest
from django.test import TestCase
from myapp.models import Category
pytestmark =…
Lord Elrond
- 13,430
- 7
- 40
- 80
12
votes
3 answers
how to test a model that has a foreign key in django?
I'm using python 3.5 and Django 1.10 and trying to test my app in tests.py, but an error appeared, it said: ValueError: Cannot assign "1": "NewsLetter.UserID" must be a "User" instance. so how to test a fk value here?
here is the code:
class…
mg22
- 245
- 2
- 6
- 13
12
votes
1 answer
Django Testing: Does --keepdb reset changes made during tests?
According to the Django docs regarding tests, the --keepdb flag will preserve the the test database for future runs.
https://docs.djangoproject.com/en/1.8/ref/django-admin/#django-admin-option---keepdb
Just to be clear, will any changes made to the…
Adam Starrh
- 6,428
- 8
- 50
- 89
12
votes
2 answers
Assert that two lists of objects are equal in django testing
Is there a way to check that two lists of objects are equal in django tests.
lets say I have some model:
class Tag(models.Model):
slug = models.SlugField(max_length=50, unique=True)
def __unicode__(self):
return self.slug
and I run…
Ben
- 6,986
- 6
- 44
- 71
12
votes
2 answers
Start django shell with a temporary database
I want to fire up the django shell with a temporary database (like what's done when doing django tests)
Is there any command like:
python manage.py testshell
where I can create a bunch of bogus models without polluting my database?
Ben
- 6,986
- 6
- 44
- 71
11
votes
3 answers
How to correctly use assertRaises in Django
I have the following validation function in my model:
@classmethod
def validate_kind(cls, kind):
if kind == 'test':
raise ValidationError("Invalid question kind")
which I am trying to test as follows:
w = Model.objects.get(id=1)…
Beliaf
- 577
- 2
- 8
- 25
10
votes
3 answers
Django testing and ContentType generic relatations fixtures
How do I use GenericRelations in Django unit testing?
I have read and tried countless suggestions on the internets to no avail.
This one was promising Problems with contenttypes when loading a fixture in Django
but "reset" command is no longer…
user3138929
- 369
- 5
- 18
8
votes
2 answers
Django abstract model + DB migrations: tests throw "cannot ALTER TABLE because it has pending trigger events"
I want to write an abstract model mixin, that I can use to make OneToOne - relations to the user model. Here is my code:
from django.conf import settings
from django.db import models
class Userable(models.Model):
user = models.OneToOneField(
…
J. Hesters
- 13,117
- 31
- 133
- 249
8
votes
2 answers
Add Token to headers request in TEST mode DRF
how is possible to add 'Authorization': 'Token' to TEST request in Django/DRF?
If i use simple requests.get(url, headers={'Authorization': 'Token'} all work perfect but how to do such request in TestCase?
Beliaf
- 577
- 2
- 8
- 25