Add documentation for using Nox more efficiently
@@ -13,8 +13,8 @@ If you wish to add a new feature or fix a bug:
to start making your changes.
#. Write a test which shows that the bug was fixed or that the feature works
as expected.
-#. Format your changes with black using command `$ nox -s blacken` and lint your
- changes using command `nox -s lint`.
+#. Format your changes with black using command `$ nox -rs blacken` and lint your
+ changes using command `nox -rs lint`.
#. Send a pull request and bug the maintainer until it gets merged and published.
:) Make sure to add yourself to ``CONTRIBUTORS.txt``.
@@ -35,8 +35,8 @@ We use some external dependencies, multiple interpreters and code coverage
analysis while running test suite. Our ``noxfile.py`` handles much of this for
you::
- $ nox --sessions test-2.7 test-3.7
- [ Nox will create virtualenv, install the specified dependencies, and run the commands in order.]
+ $ nox --reuse-existing-virtualenvs --sessions test-2.7 test-3.7
+ [ Nox will create virtualenv if needed, install the specified dependencies, and run the commands in order.]
nox > Running session test-2.7
.......
.......
@@ -51,15 +51,15 @@ you::
There is also a nox command for running all of our tests and multiple python
versions.
- $ nox --sessions test
+ $ nox --reuse-existing-virtualenvs --sessions test
Note that code coverage less than 100% is regarded as a failing run. Some
platform-specific tests are skipped unless run in that platform. To make sure
the code works in all of urllib3's supported platforms, you can run our ``tox``
suite::
- $ nox --sessions test
- [ Nox will create virtualenv, install the specified dependencies, and run the commands in order.]
+ $ nox --reuse-existing-virtualenvs --sessions test
+ [ Nox will create virtualenv if needed, install the specified dependencies, and run the commands in order.]
.......
.......
nox > Session test-2.7 was successful.
@@ -73,6 +73,28 @@ suite::
Our test suite `runs continuously on Travis CI
<https://travis-ci.org/urllib3/urllib3>`_ with every pull request.
+To run specific tests or quickly re-run without nox recreating the env, do the following::
+
+ $ nox --reuse-existing-virtualenvs --sessions test-3.8 -- pyTestArgument1 pyTestArgument2 pyTestArgumentN
+ [ Nox will create virtualenv, install the specified dependencies, and run the commands in order.]
+ nox > Running session test-3.8
+ nox > Re-using existing virtual environment at .nox/test-3-8.
+ .......
+ .......
+ nox > Session test-3.8 was successful.
+
+After the ``--`` indicator, any arguments will be passed to pytest.
+To specify an exact test case the following syntax also works:
+``test/dir/module_name.py::TestClassName::test_method_name``
+(eg.: ``test/with_dummyserver/test_https.py::TestHTTPS::test_simple``).
+The following argument is another valid example to pass to pytest: ``-k test_methode_name``.
+These are useful when developing new test cases and there is no point
+re-running ther entire test suite every iteration. It is also possible to
+further parameterize pytest for local testing.
+
+For all valid arguments, check `the pytest documentation
+<https://docs.pytest.org/en/stable/usage.html#stopping-after-the-first-or-n-failures>`_.
+
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