Skip to main content

A twisted plugin for py.test.

Project description

Authors:

Ralf Schmitt <ralf@systemexit.de>

Version:
1.4
Date:
2012-11-26
Download:

http://pypi.python.org/pypi/pytest-twisted#downloads

Code:

https://github.com/schmir/pytest-twisted

pytest-twisted is a plugin for pytest, which allows to test code, which uses the twisted framework. test functions can return Deferred objects and pytest will wait for their completion with this plugin.

Installation

Install the plugin with:

pip install pytest-twisted

Using the plugin

The plugin must be enabled. This can be done in the following ways:

  1. Run py.test with the –twisted command line option

  2. Put the following into conftest.py:

    pytest_plugins = "pytest_twisted"
  3. Put the following into pytest.ini:

    [pytest]
    twisted = 1

inlineCallbacks

Using twisted.internet.defer.inlineCallbacks as a decorator for test functions, which take funcargs, does not work. Please use pytest.inlineCallbacks instead:

@pytest.inlineCallbacks
def test_some_stuff(tmpdir):
    res = yield threads.deferToThread(os.listdir, tmpdir.strpath)
    assert res == []

The twisted greenlet

Some libraries (e.g. corotwine) need to know the greenlet, which is running the twisted reactor. It’s available from the twisted_greenlet funcarg. The following code can be used to make corotwine work with pytest-twisted:

@pytest.fixture(scope="session", autouse=True)
def set_MAIN(request, twisted_greenlet):
    from corotwine import protocol
    protocol.MAIN = twisted_greenlet

That’s all.

Project details


Download files

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

Source Distribution

pytest-twisted-1.4.zip (8.3 kB view hashes)

Uploaded Source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page