Metadata-Version: 1.2
Name: pytest-random-num
Version: 1.0.13
Summary: Randomise the order in which pytest tests are run with some control over the randomness
Home-page: https://github.com/jbasko/pytest-random-num
Author: Jazeps Basko
Author-email: jazeps.basko@gmail.com
Maintainer: Jazeps Basko
Maintainer-email: jazeps.basko@gmail.com
License: MIT
Description: ===================================
        pytest-random-num
        ===================================
        
        .. image:: https://img.shields.io/badge/python-3.5%2C%203.6%2C%203.7-blue.svg
            :target: https://github.com/jbasko/pytest-random-order
        
        .. image:: https://travis-ci.org/jbasko/pytest-random-order.svg?branch=master
            :target: https://travis-ci.org/jbasko/pytest-random-order
        
        **pytest-random-order** is a `pytest <http://pytest.org>`_ plugin that randomises the order of tests.
        modify from pytest-random-order https://github.com/jbasko/pytest-random-order
        This can be useful to detect a test that passes just because it happens to run after an unrelated test that
        leaves the system in a *favourable* state.
        
        The plugin allows user to control the level of randomness they want to introduce and to disable
        reordering on subsets of tests. Tests can be rerun in a specific order by passing a seed value reported
        in a previous test run.
        
        .. image:: https://raw.githubusercontent.com/jbasko/pytest-random-order/master/docs/pytest-random-order-design.png
        
        -----------
        Quick Start
        -----------
        
        Installation:
        
        ::
        
            $ pip install pytest-random-order
        
        From v1.0.0 onwards, **this plugin no longer randomises tests by default**. To enable randomisation, you have to run
        pytest in one of the following ways:
        
        ::
        
            pytest --random-order
            pytest --random-order-bucket=<bucket_type>
            pytest --random-order-seed=<seed>
        
        If you want to always randomise the order of tests, configure pytest. There are many ways to do it,
        my favourite one is to add ``addopts = --random-order`` in your project-specific configuration file
        under the pytest options (usually ``[pytest]`` or ``[tool:pytest]`` section).
        
        Alternatively, you can set environment variable ``PYTEST_ADDOPTS``:
        
        ::
        
            export PYTEST_ADDOPTS="--random-order"
        
        
        To randomise the order of tests within modules and shuffle the order of
        test modules (which is the default behaviour of the plugin), run pytest as follows:
        
        ::
        
            $ pytest --random-order
        
        To change the scope of re-ordering, run pytest with ``--random-order-bucket=<bucket-type>`` option
        where ``<bucket-type>`` can be ``class``, ``module``, ``package``, ``global``:
        
        ::
        
            $ pytest -v --random-order-bucket=package
        
        To disable reordering of tests in a module or class, use pytest marker notation:
        
        ::
        
            pytestmark = pytest.mark.random_order(disabled=True)
        
        To rerun tests in a particular order:
        
        ::
        
            $ pytest -v --random-order-seed=<seed>
        
        All runs in which the randomisation is enabled report seed so if you encounter a specific ordering of tests
        that causes problems you can look up the value in the test report and repeat the run with the above command.
        
        ::
        
            platform darwin -- Python 3.5.6, pytest-3.9.1, py-1.7.0, pluggy-0.8.0
            Using --random-order-bucket=module
            Using --random-order-seed=383013
        
        ------
        Design
        ------
        
        .. image:: https://raw.githubusercontent.com/jbasko/pytest-random-order/master/docs/pytest-random-order-design.png
        
        The plugin groups tests in buckets, shuffles them within buckets and then shuffles the buckets.
        
        Given the test suite above, here are two of a few possible generated orders of tests:
        
        .. image:: https://raw.githubusercontent.com/jbasko/pytest-random-order/master/docs/pytest-random-order-example1.png
        
        .. image:: https://raw.githubusercontent.com/jbasko/pytest-random-order/master/docs/pytest-random-order-example2.png
        
        You can choose from a few types of buckets:
        
        class
            Tests will be shuffled within a class and classes will be shuffled,
            but tests from one class will never have tests from other classes or modules run in-between them.
        
        module
            Same as above at module level. This is the setting applied if you run pytest with just ``--random-order`` flag
            or ``--random-order-seed=<seed>``.
        
        package
            Same as above at package level. Note that modules (and hence tests inside those modules) that
            belong to package ``x.y.z`` do not belong to package ``x.y``, so they will fall in different buckets
            when randomising with ``package`` bucket type.
        
        parent
            If you are using custom test items which don't belong to any module, you can use this to
            limit reordering of test items to within the ``parent`` to which they belong. For normal test
            functions the parent is the module in which they are declared.
        
        grandparent
            Similar to *parent* above, but use the parent of the parent of the test item as the bucket key instead.
        
        global
            All tests fall in the same bucket, full randomness, tests probably take longer to run.
        
        none (deprecated)
            Disable shuffling. *Deprecated since 1.0.4 because this plugin no longer shuffles tests by default
            so there is nothing to disable.*
        
        
        If you have three buckets of tests ``A``, ``B``, and ``C`` with three tests ``1`` and ``2``, and ``3`` in each of them,
        then one of many potential orderings that non-global randomisation can produce could be:
        
        ::
        
            c2, c1, c3, a3, a1, a2, b3, b2, b1
        
        As you can see, all C tests are executed "next" to each other and so are tests in buckets A and B.
        Tests from any bucket X are guaranteed to not be interspersed with tests from another bucket Y.
        For example, if you choose bucket type ``module`` then bucket X contains all tests that are in this module.
        
        By default, when randomisation is enabled, your tests will be randomised at ``module`` level which means that
        tests within a single module X will be executed in no particular order, but tests from
        other modules will not be mixed in between tests of module X.
        
        The randomised reordering can be disabled per module or per class irrespective of the chosen bucket type.
        
        --------------
        Usage and Tips
        --------------
        
        Bucket Type Choice
        ++++++++++++++++++
        
        It is best to start with smallest bucket type (``class`` or ``module`` depending on whether you have class-based tests),
        and switch to a larger bucket type when you are sure your tests handle that.
        
        If your tests rely on fixtures that are module or session-scoped, more randomised order of tests will mean slower tests.
        You probably don't want to randomise at ``global`` or ``package`` level while you are coding and need a quick confirmation
        that nothing big is broken.
        
        Disable Shuffling in Module or Class
        ++++++++++++++++++++++++++++++++++++
        
        You can disable shuffling of tests within a single module or class by marking the module or class
        with ``random_order`` marker and passing ``disabled=True`` to it:
        
        ::
        
            pytestmark = pytest.mark.random_order(disabled=True)
        
            def test_number_one():
                assert True
        
            def test_number_two():
                assert True
        
        ::
        
            class MyTest(TestCase):
                pytestmark = pytest.mark.random_order(disabled=True)
        
                def test_number_one(self):
                    self.assertTrue(True)
        
        
        No matter what will be the bucket type for the test run, ``test_number_one`` will always run
        before ``test_number_two``.
        
        
        Rerun Tests in the Same Order (Same Seed)
        +++++++++++++++++++++++++++++++++++++++++
        
        If you discover a failing test because you reordered tests, you will probably want to be able to rerun the tests
        in the same failing order. To allow reproducing test order, the plugin reports the seed value it used with pseudo random number
        generator:
        
        ::
        
            ============================= test session starts ==============================
            ..
            Using --random-order-bucket=module
            Using --random-order-seed=24775
            ...
        
        You can now use the ``--random-order-seed=...`` bit as an argument to the next run to produce the same order:
        
        ::
        
            $ pytest -v --random-order-seed=24775
        
        
        Run Last Failed Tests First
        +++++++++++++++++++++++++++
        
        Since v0.8.0 pytest cache plugin's ``--failed-first`` flag is supported -- tests that failed in the last run
        will be run before tests that passed irrespective of shuffling bucket type.
        
        
        Disable the Plugin
        +++++++++++++++++++++++++++++++++++
        
        If the plugin misbehaves or you just want to assure yourself that it is not the plugin making your tests fail or
        pass undeservedly, you can disable it:
        
        ::
        
            $ pytest -p no:random_order
        
        Note that randomisation is disabled by default. By passing ``-p no:random_order`` you are stopping the plugin
        from being registered so its hooks won't be registered and its command line options won't appear in ``--help``.
        
        --------------
        Changelog
        --------------
        
        v1.0.4 (2018-11-30)
        +++++++++++++++++++
        
        * Fixes issues with doctests reported in #36 - ``class``, ``package`` and ``module`` didn't work
          because ``DoctestItem`` doesn't have ``cls`` or ``module`` attributes. Thanks @tobywf.
        * Deprecate ``none`` bucket type.
        * With tox, run tests of pytest-random-order with both pytest 3 and 4.
        
        v1.0.3 (2018-11-16)
        +++++++++++++++++++
        
        * Fixes compatibility issues with pytest 4.0.0, works with pytest 3.0+ as before.
        * Tests included in the source distribution.
        
        v1.0.0 (2018-10-20)
        +++++++++++++++++++
        
        * Plugin no longer alters the test order by default. You will have to either 1) pass ``--random-order``,
          or ``--random-order-bucket=<bucket>``, or ``--random-order-seed=<seed>``, or
          2) edit your pytest configuration file and add one of these options
          there under ``addopts``, or 3) specify these flags in environment variable ``PYTEST_ADDOPTS``.
        * Python 3.5+ is required. If you want to use this plugin with Python 2.7, use v0.8.0 which is stable and fine
          if you are happy with it randomising the test order by default.
        * The name under which the plugin registers itself is changed from ``random-order`` (hyphen) to ``random_order``
          (underscore). This addresses the issue of consistency when disabling or enabling this plugin via the standard
          ``-p`` flag. Previously, the plugin could be disabled by passing ``-p no:random-order`` yet re-enabled
          only by passing ``-p pytest_random_order.plugin``. Now they are ``-p no:random_order``
          to disable and ``-p random_order.plugin`` to enable (The ``.plugin`` bit, I think, is required because
          pytest probably thinks it's an unrelated thing to ``random_order`` and import it, yet without it it's the
          same thing so doesn't import it).
        
        
        v0.8.0
        ++++++
        
        * pytest cache plugin's ``--failed-first`` works now.
        
        -------
        Credits
        -------
        
        * The shuffle icon in the diagram is by artist `Daniele De Santis`_ and it was found on
          `iconarchive`_.
        
        * The diagram is drawn with `sketchboard.io`_
        
        .. _Daniele De Santis: https://www.danieledesantis.net/
        .. _iconarchive: http://www.iconarchive.com/artist/danieledesantis.html
        .. _sketchboard.io: https://sketchboard.io/
        
Keywords: pytest random test order shuffle
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Framework :: Pytest
Classifier: Intended Audience :: Developers
Classifier: Topic :: Software Development :: Testing
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.5
Classifier: Programming Language :: Python :: 3.6
Classifier: License :: OSI Approved :: MIT License
Requires-Python: >=3.5.0
