linux-kernel - [PATCH v4 4/4] kunit: example: Provide example exit functions

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Date:   Wed, 10 May 2023 13:38:32 +0800
From:   David Gow <davidgow@...gle.com>
To:     Benjamin Berg <benjamin@...solutions.net>,
        Brendan Higgins <brendan.higgins@...ux.dev>,
        Shuah Khan <skhan@...uxfoundation.org>,
        Rae Moar <rmoar@...gle.com>,
        Daniel Latypov <dlatypov@...gle.com>
Cc:     David Gow <davidgow@...gle.com>, maxime@...no.tech,
        Stephen Boyd <sboyd@...nel.org>, kunit-dev@...glegroups.com,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sadiya Kazi <sadiyakazi@...gle.com>
Subject: [PATCH v4 4/4] kunit: example: Provide example exit functions

Add an example .exit and .suite_exit function to the KUnit example
suite. Given exit functions are a bit more subtle than init functions
(due to running in a different kthread, and running even after tests or
test init functions fail), providing an easy place to experiment with
them is useful.

Reviewed-by: Rae Moar <rmoar@...gle.com>
Signed-off-by: David Gow <davidgow@...gle.com>
---

Changes since v3:
https://lore.kernel.org/linux-kselftest/20230421040218.2156548-4-davidgow@google.com/
- Rebased on top of latest kselftest/kunit branch.
- Added Reviewed-by tag.

This patch was introduced in v3.

---
 lib/kunit/kunit-example-test.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/lib/kunit/kunit-example-test.c b/lib/kunit/kunit-example-test.c
index cd8b7e51d02b..24315c882b31 100644
--- a/lib/kunit/kunit-example-test.c
+++ b/lib/kunit/kunit-example-test.c
@@ -41,6 +41,16 @@ static int example_test_init(struct kunit *test)
 	return 0;
 }
 
+/*
+ * This is run once after each test case, see the comment on
+ * example_test_suite for more information.
+ */
+static void example_test_exit(struct kunit *test)
+{
+	kunit_info(test, "cleaning up\n");
+}
+
+
 /*
  * This is run once before all test cases in the suite.
  * See the comment on example_test_suite for more information.
@@ -52,6 +62,16 @@ static int example_test_init_suite(struct kunit_suite *suite)
 	return 0;
 }
 
+/*
+ * This is run once after all test cases in the suite.
+ * See the comment on example_test_suite for more information.
+ */
+static void example_test_exit_suite(struct kunit_suite *suite)
+{
+	kunit_info(suite, "exiting suite\n");
+}
+
+
 /*
  * This test should always be skipped.
  */
@@ -211,7 +231,9 @@ static struct kunit_case example_test_cases[] = {
 static struct kunit_suite example_test_suite = {
 	.name = "example",
 	.init = example_test_init,
+	.exit = example_test_exit,
 	.suite_init = example_test_init_suite,
+	.suite_exit = example_test_exit_suite,
 	.test_cases = example_test_cases,
 };
 
-- 
2.40.1.521.gf1e218fcd8-goog