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Project Description

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 == []

Waiting for deferreds in fixtures

pytest.blockon allows fixtures to wait for deferreds:

@pytest.fixture
def val():
    d = defer.Deferred()
    reactor.callLater(1.0, d.callback, 10)
    return pytest.blockon(d)

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.

Release History

Release History

1.5

This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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1.4

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TODO: Figure out how to actually get changelog content.

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1.3

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TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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1.2

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TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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1.1

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1.0

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TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
pytest_twisted-1.5-py27-none-any.whl (5.6 kB) Copy SHA256 Checksum SHA256 2.7 Wheel Feb 4, 2014
pytest-twisted-1.5.zip (8.6 kB) Copy SHA256 Checksum SHA256 Source Feb 4, 2014

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