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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | py.test 2.2.0: test marking++, parametrization++ and duration profiling
===========================================================================
pytest-2.2.0 is a test-suite compatible release of the popular
py.test testing tool. Plugins might need upgrades. It comes
with these improvements:
* easier and more powerful parametrization of tests:
- new @pytest.mark.parametrize decorator to run tests with different arguments
- new metafunc.parametrize() API for parametrizing arguments independently
- see examples at http://pytest.org/latest/example/parametrize.html
- NOTE that parametrize() related APIs are still a bit experimental
and might change in future releases.
* improved handling of test markers and refined marking mechanism:
- "-m markexpr" option for selecting tests according to their mark
- a new "markers" ini-variable for registering test markers for your project
- the new "--strict" bails out with an error if using unregistered markers.
- see examples at http://pytest.org/latest/example/markers.html
* duration profiling: new "--duration=N" option showing the N slowest test
execution or setup/teardown calls. This is most useful if you want to
find out where your slowest test code is.
* also 2.2.0 performs more eager calling of teardown/finalizers functions
resulting in better and more accurate reporting when they fail
Besides there is the usual set of bug fixes along with a cleanup of
pytest's own test suite allowing it to run on a wider range of environments.
For general information, see extensive docs with examples here:
http://pytest.org/
If you want to install or upgrade pytest you might just type::
pip install -U pytest # or
easy_install -U pytest
Thanks to Ronny Pfannschmidt, David Burns, Jeff Donner, Daniel Nouri, Alfredo Deza and all who gave feedback or sent bug reports.
best,
holger krekel
notes on incompatibility
------------------------------
While test suites should work unchanged you might need to upgrade plugins:
* You need a new version of the pytest-xdist plugin (1.7) for distributing
test runs.
* Other plugins might need an upgrade if they implement
the ``pytest_runtest_logreport`` hook which now is called unconditionally
for the setup/teardown fixture phases of a test. You may choose to
ignore setup/teardown failures by inserting "if rep.when != 'call': return"
or something similar. Note that most code probably "just" works because
the hook was already called for failing setup/teardown phases of a test
so a plugin should have been ready to grok such reports already.
Changes between 2.1.3 and 2.2.0
----------------------------------------
- fix issue90: introduce eager tearing down of test items so that
teardown function are called earlier.
- add an all-powerful metafunc.parametrize function which allows to
parametrize test function arguments in multiple steps and therefore
from independent plugins and places.
- add a @pytest.mark.parametrize helper which allows to easily
call a test function with different argument values.
- Add examples to the "parametrize" example page, including a quick port
of Test scenarios and the new parametrize function and decorator.
- introduce registration for "pytest.mark.*" helpers via ini-files
or through plugin hooks. Also introduce a "--strict" option which
will treat unregistered markers as errors
allowing to avoid typos and maintain a well described set of markers
for your test suite. See examples at http://pytest.org/latest/mark.html
and its links.
- issue50: introduce "-m marker" option to select tests based on markers
(this is a stricter and more predictable version of "-k" in that "-m"
only matches complete markers and has more obvious rules for and/or
semantics.
- new feature to help optimizing the speed of your tests:
--durations=N option for displaying N slowest test calls
and setup/teardown methods.
- fix issue87: --pastebin now works with python3
- fix issue89: --pdb with unexpected exceptions in doctest work more sensibly
- fix and cleanup pytest's own test suite to not leak FDs
- fix issue83: link to generated funcarg list
- fix issue74: pyarg module names are now checked against imp.find_module false positives
- fix compatibility with twisted/trial-11.1.0 use cases
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