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authorMichal Wajdeczko <michal.wajdeczko@intel.com>2023-05-17 14:18:14 +0300
committerShuah Khan <skhan@linuxfoundation.org>2023-05-26 17:43:57 +0300
commitd273b72846d636a7a9072587b5c53e7c0aeb791b (patch)
tree8d3c17b1ade0a1233a94ba282f39b7adcaf16025
parentc7853b55116e644e1fd4f0e5d8ea7c5dc89d71b8 (diff)
downloadlinux-d273b72846d636a7a9072587b5c53e7c0aeb791b.tar.xz
kunit/test: Add example test showing parameterized testing
Use of parameterized testing is documented [1] but such use case is not present in demo kunit test. Add small subtest for that. [1] https://kernel.org/doc/html/latest/dev-tools/kunit/usage.html#parameterized-testing Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: David Gow <davidgow@google.com> Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
-rw-r--r--lib/kunit/kunit-example-test.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/lib/kunit/kunit-example-test.c b/lib/kunit/kunit-example-test.c
index 24315c882b31..b69b689ea850 100644
--- a/lib/kunit/kunit-example-test.c
+++ b/lib/kunit/kunit-example-test.c
@@ -187,6 +187,39 @@ static void example_static_stub_test(struct kunit *test)
KUNIT_EXPECT_EQ(test, add_one(1), 2);
}
+static const struct example_param {
+ int value;
+} example_params_array[] = {
+ { .value = 2, },
+ { .value = 1, },
+ { .value = 0, },
+};
+
+static void example_param_get_desc(const struct example_param *p, char *desc)
+{
+ snprintf(desc, KUNIT_PARAM_DESC_SIZE, "example value %d", p->value);
+}
+
+KUNIT_ARRAY_PARAM(example, example_params_array, example_param_get_desc);
+
+/*
+ * This test shows the use of params.
+ */
+static void example_params_test(struct kunit *test)
+{
+ const struct example_param *param = test->param_value;
+
+ /* By design, param pointer will not be NULL */
+ KUNIT_ASSERT_NOT_NULL(test, param);
+
+ /* Test can be skipped on unsupported param values */
+ if (!param->value)
+ kunit_skip(test, "unsupported param value");
+
+ /* You can use param values for parameterized testing */
+ KUNIT_EXPECT_EQ(test, param->value % param->value, 0);
+}
+
/*
* Here we make a list of all the test cases we want to add to the test suite
* below.
@@ -203,6 +236,7 @@ static struct kunit_case example_test_cases[] = {
KUNIT_CASE(example_mark_skipped_test),
KUNIT_CASE(example_all_expect_macros_test),
KUNIT_CASE(example_static_stub_test),
+ KUNIT_CASE_PARAM(example_params_test, example_gen_params),
{}
};