Current File : //proc/self/root/opt/alt/python27/lib/python2.7/site-packages/nose/plugins/testid.pyc
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This plugin adds a test id (like #1) to each test name output. After
you've run once to generate test ids, you can re-run individual
tests by activating the plugin and passing the ids (with or
without the # prefix) instead of test names.
For example, if your normal test run looks like::
% nosetests -v
tests.test_a ... ok
tests.test_b ... ok
tests.test_c ... ok
When adding ``--with-id`` you'll see::
% nosetests -v --with-id
#1 tests.test_a ... ok
#2 tests.test_b ... ok
#3 tests.test_c ... ok
Then you can re-run individual tests by supplying just an id number::
% nosetests -v --with-id 2
#2 tests.test_b ... ok
You can also pass multiple id numbers::
% nosetests -v --with-id 2 3
#2 tests.test_b ... ok
#3 tests.test_c ... ok
Since most shells consider '#' a special character, you can leave it out when
specifying a test id.
Note that when run without the -v switch, no special output is displayed, but
the ids file is still written.
Looping over failed tests
-------------------------
This plugin also adds a mode that will direct the test runner to record
failed tests. Subsequent test runs will then run only the tests that failed
last time. Activate this mode with the ``--failed`` switch::
% nosetests -v --failed
#1 test.test_a ... ok
#2 test.test_b ... ERROR
#3 test.test_c ... FAILED
#4 test.test_d ... ok
On the second run, only tests #2 and #3 will run::
% nosetests -v --failed
#2 test.test_b ... ERROR
#3 test.test_c ... FAILED
As you correct errors and tests pass, they'll drop out of subsequent runs.
First::
% nosetests -v --failed
#2 test.test_b ... ok
#3 test.test_c ... FAILED
Second::
% nosetests -v --failed
#3 test.test_c ... FAILED
When all tests pass, the full set will run on the next invocation.
First::
% nosetests -v --failed
#3 test.test_c ... ok
Second::
% nosetests -v --failed
#1 test.test_a ... ok
#2 test.test_b ... ok
#3 test.test_c ... ok
#4 test.test_d ... ok
.. note ::
If you expect to use ``--failed`` regularly, it's a good idea to always run
using the ``--with-id`` option. This will ensure that an id file is always
created, allowing you to add ``--failed`` to the command line as soon as
you have failing tests. Otherwise, your first run using ``--failed`` will
(perhaps surprisingly) run *all* tests, because there won't be an id file
containing the record of failed tests from your previous run.
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Activate to add a test id (like #1) to each test name output. Activate
with --failed to rerun failing tests only.
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Example output::
#1 test.test ... ok
#2 test.test_two ... ok
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