[svn r37989] add an overview over py.tests command-line options

--HG--
branch : trunk
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cfbolz 2007-02-06 00:50:11 +01:00
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@ -370,6 +370,130 @@ to insert ``setup_class = classmethod(setup_class)`` to make
your setup function callable. Did we mention that lazyness
is a virtue?
Some ``py.test`` command-line options
=====================================
Regular options
---------------
``-v, --verbose``:
Increase verbosity. This shows a test per line while running and also
shows the traceback after interrupting the test run with Ctrl-C.
``-x, --exitfirst``:
exit instantly on the first error or the first failed test.
``-s, --nocapture``:
disable catching of sys.stdout/stderr output.
``-k KEYWORD``:
only run test items matching the given keyword expression. You can also add
use ``-k -KEYWORD`` to exlude tests from being run. The keyword is matched
against filename, test class name, method name.
``-l, --showlocals``:
show locals in tracebacks: for every frame in the traceback, show the values
of the local variables.
``--pdb``:
drop into pdb (the `Python debugger`_) on exceptions. If the debugger is
quitted, the next test is run. This implies ``-s``.
``--tb=TBSTYLE``:
traceback verboseness: ``long`` is the default, ``short`` are the normal
Python tracebacks, ``no`` omits tracebacks completely.
``--fulltrace``:
Don't cut any tracebacks. The default is to leave out frames if an infinite
recursion is detected.
``--nomagic``:
Refrain from using magic as much as possible. This can be useful if you are
suspicious that ``py.test`` somehow interferes with your program in
unintended ways (if this is the case, please contact us!).
``--collectonly``:
Only collect tests, don't execute them.
``--traceconfig``:
trace considerations of conftest.py files. Useful when you have various
conftest.py files around and are unsure about their interaction.
More experimental options
-------------------------
**Note**: these options could change in the future.
``-f, --looponfailing``:
Loop on failing test set. This is a feature you can use when you are trying
to fix a number of failing tests: First all the tests are being run. If a
number of tests are failing, these are run repeatedly afterwards. Every
repetition is started once a file below the directory that you started
testing for is changed. If one of the previously failing tests now passes,
it is removed from the test set.
``--exec=EXECUTABLE``:
Python executable to run the tests with. Useful for testing on different
versions of Python.
``-d, --dist``:
ad-hoc `distribute tests across machines`_ (requires conftest settings)
``-w, --startserver``:
starts local web server for displaying test progress.
``-r, --runbrowser``:
Run browser (implies --startserver).
``--box``:
Use boxing: run each test in an external process. Very useful for testing
things that occasionally segfault (since normally the segfault then would
stop the whole test process).
``--rest``:
`reStructured Text`_ output reporting.
.. _`reStructured Text`: http://docutils.sourceforge.net
.. _`Python debugger`: http://docs.python.org/lib/module-pdb.html
.. _`distribute tests across machines`:
Automated Distributed Testing
==================================