[PATCH v3 3/6] kunit: add example suite to test init suites

[Rae Moar <rmoar@google.com>]

Add example_init_test_suite to allow for testing the feature of running
test suites marked as init to indicate they use init data and/or
functions.

This suite should always pass and uses a simple init function.

This suite can also be used to test the is_init attribute introduced in
the next patch.

Signed-off-by: Rae Moar <rmoar@google.com>
---
 lib/kunit/kunit-example-test.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/lib/kunit/kunit-example-test.c b/lib/kunit/kunit-example-test.c
index 6bb5c2ef6696..262a68a59800 100644
--- a/lib/kunit/kunit-example-test.c
+++ b/lib/kunit/kunit-example-test.c
@@ -287,4 +287,33 @@ static struct kunit_suite example_test_suite = {
  */
 kunit_test_suites(&example_test_suite);
 
+static int __init init_add(int x, int y)
+{
+	return (x + y);
+}
+
+/*
+ * This test should always pass. Can be used to test init suites.
+ */
+static void example_init_test(struct kunit *test)
+{
+	KUNIT_EXPECT_EQ(test, init_add(1, 1), 2);
+}
+
+static struct kunit_case example_init_test_cases[] = {
+	KUNIT_CASE(example_init_test),
+	{}
+};
+
+static struct kunit_suite example_init_test_suite = {
+	.name = "example_init",
+	.test_cases = example_init_test_cases,
+};
+
+/*
+ * This registers the test suite and marks the suite as using init data
+ * and/or functions.
+ */
+kunit_test_init_section_suites(&example_init_test_suite);
+
 MODULE_LICENSE("GPL v2");
-- 
2.43.0.rc2.451.g8631bc7472-goog