pytest-base-url

pytest-base-url is a simple plugin for pytest_ that provides an optional base
URL via the command line or configuration file.

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:alt: Requirements

Requirements

You will need the following prerequisites in order to use pytest-base-url:

Python 3.8+ or PyPy3

Installation

To install pytest-base-url:

.. code-block:: bash

$ pip install pytest-base-url

Contributing

We welcome contributions.

To learn more, see Development <https://github.com/pytest-dev/pytest-base-url/blob/master/development.rst>_

Specifying a Base URL

Rather than repeating or abstracting a base URL in your tests, pytest-base-url
provides a base_url fixture that returns the specified base URL.

.. code-block:: python

import urllib2

def test_example(base_url):
assert 200 == urllib2.urlopen(base_url).getcode()

Using the Command Line
^^^^^^^^^^^^^^^^^^^^^^

You can specify the base URL on the command line:

.. code-block:: bash

$ pytest --base-url http://www.example.com

Using a Configuration File
^^^^^^^^^^^^^^^^^^^^^^^^^^

You can specify the base URL using a configuration file_:

.. code-block:: ini

[pytest]
base_url = http://www.example.com

Using an Environment Variable
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

You can specify the base URL by setting the PYTEST_BASE_URL environment variable.

Using a Fixture
^^^^^^^^^^^^^^^

If your test harness takes care of launching an instance of your application
under test, you may not have a predictable base URL to provide on the command
line. Fortunately, it's easy to override the base_url fixture and return
the correct URL to your test.

In the following example a live_server fixture is used to start the
application and live_server.url returns the base URL of the site.

.. code-block:: python

import urllib2
import pytest

@pytest.fixture
def base_url(live_server):
return live_server.url

def test_search(base_url):
assert 200 == urllib2.urlopen('{0}/search'.format(base_url)).getcode()

Available Live Servers

It's relatively simple to create your own live_server fixture, however you
may be able to take advantage of one of the following:

Django applications can use pytest-django_'s live_server fixture.
Flask applications can use pytest-flask_'s live_server fixture.

Verifying the Base URL

If you specify a base URL for a site that's unavailable then all tests using
that base URL will likely fail. To avoid running every test in this instance,
you can enable base URL verification. This will check the base URL is
responding before proceeding with the test suite. To enable this, specify the
--verify-base-url command line option or set the VERIFY_BASE_URL
environment variable to TRUE.

Skipping Base URLs

You can skip tests_ based on the value of the base URL so long as it is
provided either by the command line or in a configuration file:

.. code-block:: python

import urllib2
import pytest

@pytest.mark.skipif(
"'dev' in config.getoption('base_url')",
reason='Search not available on dev')
def test_search(base_url):
assert 200 == urllib2.urlopen('{0}/search'.format(base_url)).getcode()

Unfortunately if the URL is provided by a fixture, there is no way to know this
value at test collection.

Resources

Release Notes_
Issue Tracker_
Code_

.. _pytest: http://www.python.org/
.. _configuration file: http://pytest.org/latest/customize.html#command-line-options-and-configuration-file-settings
.. _pytest-django: http://pytest-django.readthedocs.org/
.. _pytest-flask: http://pytest-flask.readthedocs.org/
.. _skip tests: http://pytest.org/latest/skipping.html
.. _Release Notes: http://github.com/pytest-dev/pytest-base-url/blob/master/CHANGES.rst
.. _Issue Tracker: http://github.com/pytest-dev/pytest-base-url/issues
.. _Code: http://github.com/pytest-dev/pytest-base-url

Dependency	Optional
pytest	false
requests	false
black	true
flake8	true
pre-commit	true
pytest-localserver	true
tox	true

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pytest-base-url

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