linux-kernel - [PATCH v2] Documentation: kunit: Clarify test filter format

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Message-ID: <20240402125109.1251232-1-jackmanb@google.com>
Date: Tue,  2 Apr 2024 12:51:09 +0000
From: Brendan Jackman <jackmanb@...gle.com>
To: linux-kselftest@...r.kernel.org, kunit-dev@...glegroups.com, 
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Daniel Latypov <dlatypov@...gle.com>
Cc: Brendan Higgins <brendan.higgins@...ux.dev>, davidgow@...gle.com, rmoar@...gle.com, 
	corbet@....net, Brendan Jackman <jackmanb@...gle.com>
Subject: [PATCH v2] Documentation: kunit: Clarify test filter format

It seems obvious once you know, but at first I didn't realise that the
suite name is part of this format. Document it and add some examples.

Signed-off-by: Brendan Jackman <jackmanb@...gle.com>
---
v1->v2: Expanded to clarify that suite_glob and test_glob are two separate
	patterns. Also made some other trivial changes to formatting etc.

 Documentation/dev-tools/kunit/run_wrapper.rst | 33 +++++++++++++++++--
 1 file changed, 30 insertions(+), 3 deletions(-)

diff --git a/Documentation/dev-tools/kunit/run_wrapper.rst b/Documentation/dev-tools/kunit/run_wrapper.rst
index 19ddf5e07013..b07252d3fa9d 100644
--- a/Documentation/dev-tools/kunit/run_wrapper.rst
+++ b/Documentation/dev-tools/kunit/run_wrapper.rst
@@ -156,12 +156,39 @@ Filtering tests
 ===============
 
 By passing a bash style glob filter to the ``exec`` or ``run``
-commands, we can run a subset of the tests built into a kernel . For
-example: if we only want to run KUnit resource tests, use:
+commands, we can run a subset of the tests built into a kernel,
+identified by a string like ``<suite_glob>[.<test_glob>]``.
+
+For example, to run the ``kunit-resource-test`` suite:
+
+.. code-block::
+
+	./tools/testing/kunit/kunit.py run kunit-resource-test
+
+To run a specific test from that suite:
+
+.. code-block::
+
+	./tools/testing/kunit/kunit.py run kunit-resource-test.kunit_resource_test
+
+To run all tests from suites whose names start with ``kunit``:
+
+.. code-block::
+
+	./tools/testing/kunit/kunit.py run 'kunit*'
+
+To run all tests whose name ends with ``remove_resource``:
+
+.. code-block::
+
+	./tools/testing/kunit/kunit.py run '*.*remove_resource'
+
+To run all tests whose name ends with ``remove_resource``, from suites whose
+names start with ``kunit``:
 
 .. code-block::
 
-	./tools/testing/kunit/kunit.py run 'kunit-resource*'
+	./tools/testing/kunit/kunit.py run 'kunit*.*remove_resource'
 
 This uses the standard glob format with wildcard characters.
 
-- 
2.44.0.478.gd926399ef9-goog