Skip to main content

Define pytest fixtures as context managers.

Project description

pytest-contextfixture makes it possible to define pytest fixtures as context managers.

A contextfixture works like a standard fixture, but it allows the definition to be written as a generator. This simplifies the teardown code and allows for other context managers to be used within a fixture.

Installation

pip install pytest-contextfixture

Usage

Consider this example, using the standard pytest.fixture:

import pytest

@pytest.fixture
def dependency(request)
    def teardown():
        # fixture teardown code goes here
    request.addfinalizer(teardown)

    return 1234

def test_foo(dependency):
    assert fn_under_test(dependency) == 'expected'

With pytest.contextfixture, this is equivalent:

import pytest

@pytest.contextfixture
def dependency(request):
    # fixture setup code goes here
    yield 1234
    # fixture teardown code goes here

def test_foo(dependency):
    assert fn_under_test(dependency) == 'expected'

While this is a slightly nicer syntax, when using other context managers to get a dependency for a fixture, this becomes more useful:

@pytest_contextfixture
def dependency(request):
    with setup_something():
        with setup_something_else() as d:
            yield d

def test_foo(dependency):
    assert fn_under_test(dependency) == 'expected'

test_foo will then run in the context of setup_something and setup_something_else.

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-contextfixture-0.1.1.tar.gz (3.2 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