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django-mock-queries-2.1.7
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مشاهده بیشترتوضیحات
A django library for mocking queryset functions in memory for testing
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | django-mock-queries-2.1.7 |
| نام | django-mock-queries |
| نسخه کتابخانه | 2.1.7 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Phivos Stylianides |
| ایمیل نویسنده | stphivos@gmail.com |
| آدرس صفحه اصلی | https://github.com/stphivos/django-mock-queries |
| آدرس اینترنتی | https://pypi.org/project/django-mock-queries/ |
| مجوز | MIT |
[](https://pypi.python.org/pypi/django_mock_queries)
[](https://travis-ci.org/stphivos/django-mock-queries)
[](https://codecov.io/github/stphivos/django-mock-queries?branch=master)
[](https://codeclimate.com/github/stphivos/django-mock-queries)
# Django Mock Queries
A library for mocking Django queryset functions in memory for testing
## Features
* QuerySet style support for method chaining
* Filtering with Q objects
* Aggregates generation
* CRUD functions
* Field lookups
* django-rest-framework serializer asserts
## Examples
```python
from django.db.models import Avg, Q
from django_mock_queries.query import MockSet, MockModel
qs = MockSet(
MockModel(mock_name='john', email='john@gmail.com'),
MockModel(mock_name='jeff', email='jeff@hotmail.com'),
MockModel(mock_name='bill', email='bill@gmail.com'),
)
print [x for x in qs.all().filter(email__icontains='gmail.com').select_related('address')]
# Outputs: [john, bill]
qs = MockSet(
MockModel(mock_name='model s', msrp=70000),
MockModel(mock_name='model x', msrp=80000),
MockModel(mock_name='model 3', msrp=35000),
)
print qs.all().aggregate(Avg('msrp'))
# Outputs: {'msrp__avg': 61666}
qs = MockSet(
MockModel(mock_name='model x', make='tesla', country='usa'),
MockModel(mock_name='s-class', make='mercedes', country='germany'),
MockModel(mock_name='s90', make='volvo', country='sweden'),
)
print [x for x in qs.all().filter(Q(make__iexact='tesla') | Q(country__iexact='germany'))]
# Outputs: [model x, s-class]
qs = MockSet(cls=MockModel)
print qs.create(mock_name='my_object', foo='1', bar='a')
# Outputs: my_object
print [x for x in qs]
# Outputs: [my_object]
```
### Test function that uses Django QuerySet:
```python
"""
Function that queries active users
"""
def active_users(self):
return User.objects.filter(is_active=True).all()
"""
Test function applies expected filters by patching Django's user model Manager or Queryset with a MockSet
"""
from mock import patch
from django_mock_queries.query import MockSet, MockModel
class TestApi(TestCase):
users = MockSet()
user_objects = patch('django.contrib.auth.models.User.objects', users)
@user_objects
def test_api_active_users_filters_by_is_active_true(self):
self.users.add(
MockModel(mock_name='active user', is_active=True),
MockModel(mock_name='inactive user', is_active=False)
)
for x in self.api.active_users():
assert x.is_active
```
### Test django-rest-framework model serializer:
```python
"""
Car model serializer that includes a nested serializer and a method field
"""
class CarSerializer(serializers.ModelSerializer):
make = ManufacturerSerializer()
speed = serializers.SerializerMethodField()
def get_speed(self, obj):
return obj.format_speed()
class Meta:
model = Car
fields = ('id', 'make', 'model', 'speed',)
"""
Test serializer returns fields with expected values and mock the result of nested serializer for field make
"""
def test_car_serializer_fields(self):
car = Car(id=1, make=Manufacturer(id=1, name='vw'), model='golf', speed=300)
values = {
'id': car.id,
'model': car.model,
'speed': car.formatted_speed(),
}
assert_serializer(CarSerializer) \
.instance(car) \
.returns('id', 'make', 'model', 'speed') \
.values(**values) \
.mocks('make') \
.run()
```
### Full Example
There is a full Django application in the `examples/users` folder. It shows how
to configure `django_mock_queries` in your tests and run them with or without
setting up a Django database. Running the mock tests without a database can be
much faster when your Django application has a lot of database migrations.
To run your Django tests without a database, add a new settings file, and call
`monkey_patch_test_db()`. Use a wildcard import to get all the regular settings
as well.
```python
# settings_mocked.py
from django_mock_queries.mocks import monkey_patch_test_db
from users.settings import *
monkey_patch_test_db()
```
Then run your Django tests with the new settings file:
./manage.py test --settings=users.settings_mocked
Here's the pytest equivalent:
pytest --ds=users.settings_mocked
That will run your tests without setting up a test database. All of your tests
that use Django mock queries should run fine, but what about the tests that
really need a database?
ERROR: test_create (examples.users.analytics.tests.TestApi)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/.../examples/users/analytics/tests.py", line 28, in test_create
start_count = User.objects.count()
[...]
NotSupportedError: Mock database tried to execute SQL for User model.
If you want to run your tests without a database, you need to tell Django
to skip the tests that need a database. You can do that by putting a skip
decorator on the test classes or test methods that need a database.
```python
@skipIfDBFeature('is_mocked')
class TestApi(TestCase):
def test_create(self):
start_count = User.objects.count()
User.objects.create(username='bob')
final_count = User.objects.count()
self.assertEqual(start_count + 1, final_count)
```
## Installation
```bash
pip install django_mock_queries
```
## Contributing
Anything missing or not functioning correctly? PRs are always welcome! Otherwise, you can create an issue so someone else does it when time allows.
You can follow these guidelines:
* Fork the repo from this page
* Clone your fork:
```bash
git clone https://github.com/{your-username}/django-mock-queries.git
cd django-mock-queries
git checkout -b feature/your_cool_feature
```
* Implement feature/fix
* Add/modify relevant tests
* Run tox to verify all tests and flake8 quality checks pass
```bash
tox
```
* Commit and push local branch to your origin
```bash
git commit . -m "New cool feature does this"
git push -u origin HEAD
```
* Create pull request
## TODO
* Add docs as a service like readthedocs with examples for every feature
* Add support for missing QuerySet methods/Field lookups/Aggregation functions:
* Methods that return new QuerySets: annotate, reverse, none, extra, raw
* Methods that do not return QuerySets: bulk_create, in_bulk, as_manager
* Field lookups: search
* Aggregation functions: StdDev, Variance
نحوه نصب
نصب پکیج whl django-mock-queries-2.1.7:
pip install django-mock-queries-2.1.7.whl
نصب پکیج tar.gz django-mock-queries-2.1.7:
pip install django-mock-queries-2.1.7.tar.gz