The just released pytest-2.4.0 brings many improvements and numerous bug fixes while remaining plugin- and test-suite compatible apart from a few supposedly very minor incompatibilities. See below for a full list of details. A few feature highlights: - new yield-style fixtures `pytest.yield_fixture http://pytest.org/latest/yieldfixture.html`_, allowing to use existing with-style context managers in fixture functions. - improved pdb support: ``import pdb ; pdb.set_trace()`` now works without requiring prior disabling of stdout/stderr capturing. Also the ``--pdb`` options works now on collection and internal errors and we introduced a new experimental hook for IDEs/plugins to intercept debugging: ``pytest_exception_interact(node, call, report)``. - shorter monkeypatch variant to allow specifying an import path as a target, for example: ``monkeypatch.setattr("requests.get", myfunc)`` - better unittest/nose compatibility: all teardown methods are now only called if the corresponding setup method succeeded. - integrate tab-completion on command line options if you have `argcomplete http://pypi.python.org/pypi/argcomplete`_ configured. - allow boolean expression directly with skipif/xfail if a "reason" is also specified. - a new hook ``pytest_load_initial_conftests`` allows plugins like `pytest-django http://pypi.python.org/pypi/pytest-django`_ to influence the environment before conftest files import ``django``. - reporting: color the last line red or green depending if failures/errors occured or everything passed. The documentation has been updated to accomodate the changes, see `http://pytest.org http://pytest.org`_ To install or upgrade pytest:: pip install -U pytest # or easy_install -U pytest **Many thanks to all who helped, including Floris Bruynooghe, Brianna Laugher, Andreas Pelme, Anthon van der Neut, Anatoly Bubenkoff, Vladimir Keleshev, Mathieu Agopian, Ronny Pfannschmidt, Christian Theunert and many others.** may passing tests be with you, holger krekel Changes between 2.3.5 and 2.4 ----------------------------------- known incompatibilities: - if calling --genscript from python2.7 or above, you only get a standalone script which works on python2.7 or above. Use Python2.6 to also get a python2.5 compatible version. - all xunit-style teardown methods (nose-style, pytest-style, unittest-style) will not be called if the corresponding setup method failed, see issue322 below. - the pytest_plugin_unregister hook wasn't ever properly called and there is no known implementation of the hook - so it got removed. - pytest.fixture-decorated functions cannot be generators (i.e. use yield) anymore. This change might be reversed in 2.4.1 if it causes unforeseen real-life issues. However, you can always write and return an inner function/generator and change the fixture consumer to iterate over the returned generator. This change was done in lieu of the new ``pytest.yield_fixture`` decorator, see below. new features: - experimentally introduce a new ``pytest.yield_fixture`` decorator which accepts exactly the same parameters as pytest.fixture but mandates a ``yield`` statement instead of a ``return statement`` from fixture functions. This allows direct integration with "with-style" context managers in fixture functions and generally avoids registering of finalization callbacks in favour of treating the "after-yield" as teardown code. Thanks Andreas Pelme, Vladimir Keleshev, Floris Bruynooghe, Ronny Pfannschmidt and many others for discussions. - allow boolean expression directly with skipif/xfail if a "reason" is also specified. Rework skipping documentation to recommend "condition as booleans" because it prevents surprises when importing markers between modules. Specifying conditions as strings will remain fully supported. - reporting: color the last line red or green depending if failures/errors occured or everything passed. thanks Christian Theunert. - make "import pdb ; pdb.set_trace()" work natively wrt capturing (no "-s" needed anymore), making ``pytest.set_trace()`` a mere shortcut. - fix issue181: --pdb now also works on collect errors (and on internal errors) . This was implemented by a slight internal refactoring and the introduction of a new hook ``pytest_exception_interact`` hook (see next item). - fix issue341: introduce new experimental hook for IDEs/terminals to intercept debugging: ``pytest_exception_interact(node, call, report)``. - new monkeypatch.setattr() variant to provide a shorter invocation for patching out classes/functions from modules: monkeypatch.setattr("requests.get", myfunc) will replace the "get" function of the "requests" module with ``myfunc``. - fix issue322: tearDownClass is not run if setUpClass failed. Thanks Mathieu Agopian for the initial fix. Also make all of pytest/nose finalizer mimick the same generic behaviour: if a setupX exists and fails, don't run teardownX. This internally introduces a new method "node.addfinalizer()" helper which can only be called during the setup phase of a node. - simplify pytest.mark.parametrize() signature: allow to pass a CSV-separated string to specify argnames. For example: ``pytest.mark.parametrize("input,expected", [(1,2), (2,3)])`` works as well as the previous: ``pytest.mark.parametrize(("input", "expected"), ...)``. - add support for setUpModule/tearDownModule detection, thanks Brian Okken. - integrate tab-completion on options through use of "argcomplete". Thanks Anthon van der Neut for the PR. - change option names to be hyphen-separated long options but keep the old spelling backward compatible. py.test -h will only show the hyphenated version, for example "--collect-only" but "--collectonly" will remain valid as well (for backward-compat reasons). Many thanks to Anthon van der Neut for the implementation and to Hynek Schlawack for pushing us. - fix issue 308 - allow to mark/xfail/skip individual parameter sets when parametrizing. Thanks Brianna Laugher. - call new experimental pytest_load_initial_conftests hook to allow 3rd party plugins to do something before a conftest is loaded. Bug fixes: - fix issue358 - capturing options are now parsed more properly by using a new parser.parse_known_args method. - pytest now uses argparse instead of optparse (thanks Anthon) which means that "argparse" is added as a dependency if installing into python2.6 environments or below. - fix issue333: fix a case of bad unittest/pytest hook interaction. - PR27: correctly handle nose.SkipTest during collection. Thanks Antonio Cuni, Ronny Pfannschmidt. - fix issue355: junitxml puts name="pytest" attribute to testsuite tag. - fix issue336: autouse fixture in plugins should work again. - fix issue279: improve object comparisons on assertion failure for standard datatypes and recognise collections.abc. Thanks to Brianna Laugher and Mathieu Agopian. - fix issue317: assertion rewriter support for the is_package method - fix issue335: document py.code.ExceptionInfo() object returned from pytest.raises(), thanks Mathieu Agopian. - remove implicit distribute_setup support from setup.py. - fix issue305: ignore any problems when writing pyc files. - SO-17664702: call fixture finalizers even if the fixture function partially failed (finalizers would not always be called before) - fix issue320 - fix class scope for fixtures when mixed with module-level functions. Thanks Anatloy Bubenkoff. - you can specify "-q" or "-qq" to get different levels of "quieter" reporting (thanks Katarzyna Jachim) - fix issue300 - Fix order of conftest loading when starting py.test in a subdirectory. - fix issue323 - sorting of many module-scoped arg parametrizations - make sessionfinish hooks execute with the same cwd-context as at session start (helps fix plugin behaviour which write output files with relative path such as pytest-cov) - fix issue316 - properly reference collection hooks in docs - fix issue 306 - cleanup of -k/-m options to only match markers/test names/keywords respectively. Thanks Wouter van Ackooy. - improved doctest counting for doctests in python modules -- files without any doctest items will not show up anymore and doctest examples are counted as separate test items. thanks Danilo Bellini. - fix issue245 by depending on the released py-1.4.14 which fixes py.io.dupfile to work with files with no mode. Thanks Jason R. Coombs. - fix junitxml generation when test output contains control characters, addressing issue267, thanks Jaap Broekhuizen - fix issue338: honor --tb style for setup/teardown errors as well. Thanks Maho. - fix issue307 - use yaml.safe_load in example, thanks Mark Eichin. - better parametrize error messages, thanks Brianna Laugher - pytest_terminal_summary(terminalreporter) hooks can now use ".section(title)" and ".line(msg)" methods to print extra information at the end of a test run.