Skip to main content

pytest plugin with powerful fixtures

Project description

pytest-power

python PyPI

Adds a number of shorthands for fixtures and other helpers for easier testing:

  • patch.object
  • patch.init
  • patch.many
  • patch.everything

You can instal pytest-power with pip:

pip install pytest-power

Usage

patch.object

A shorthand for pytest-mock's mocker.patch.object

from myapp import App

def test_app_run(patch):
  patch.object(App, 'run')
  App.run()
  assert App.run.call_count == 1

You can pass keywords arguments as usual:

from myapp import App

def test_app_run(patch):
  patch.object(App, 'run', return_value='running')
  assert App.run() == 'running'

patch.init

Makes patching __init__ a bit simpler:

from myapp import App

def test_app_init(patch):
  patch.init(App)
  app = App()
  assert isinstance(app, App)

Instances patched in this way do not have properties that are set in __init__, so they have to be set again by hand.

Keyword arguments are passed to underlying patch.object, and autospec is enabled by default.

Multiple classes can be passed too:

patch.init(App, Cli)

patch.many

A shorthand to patch many properties of the same object:

from myapp import App

def test_app_run_called_by_run(patch):
  patch.many(App, ['run', 'called_by_run'])
  App.run()
  assert App.called_by_run.call_count == 1

Keyword arguments are again passed to underlying patch.object, and autospec is enabled by default.

patch.everything

A shorthand to patch every non-magic property. Useful when patch.many gets too long!

from myapp import App


def test_app_run_called_by_run(patch):
  patch.everything(App)
  App.run()
  assert App.called_by_run.call_count == 1

Supports forcing the exclusion of properties:

from myapp import App


def test_app_run(patch, excludes=['run']):
  patch.everything(App)
  App.run()
  assert App.called_by_run.call_count == 1

And forcing the inclusion of properties:

from myapp import App


def test_app_run(patch, includes=['__private__']):
  patch.everything(App)
  App.run()
  assert App.__private__.call_count == 1

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for pytest-power, version 1.0.1
Filename, size File type Python version Upload date Hashes
Filename, size pytest_power-1.0.1-py3-none-any.whl (4.2 kB) File type Wheel Python version py3 Upload date Hashes View
Filename, size pytest-power-1.0.1.tar.gz (3.7 kB) File type Source Python version None Upload date Hashes View

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page