linux-kernel - [PATCH v3 10/22] perf test: Convert pmu event tests to test cases.

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Date:   Wed,  3 Nov 2021 23:41:56 -0700
From:   Ian Rogers <irogers@...gle.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Jin Yao <yao.jin@...ux.intel.com>,
        John Garry <john.garry@...wei.com>,
        "Paul A . Clarke" <pc@...ibm.com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        Brendan Higgins <brendanhiggins@...gle.com>,
        Daniel Latypov <dlatypov@...gle.com>,
        David Gow <davidgow@...gle.com>,
        Sohaib Mohamed <sohaib.amhmd@...il.com>
Cc:     eranian@...gle.com, Ian Rogers <irogers@...gle.com>
Subject: [PATCH v3 10/22] perf test: Convert pmu event tests to test cases.

Use null terminated array of test cases rather than the previous sub
test functions.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/tests/pmu-events.c | 78 +++++++----------------------------
 1 file changed, 16 insertions(+), 62 deletions(-)

diff --git a/tools/perf/tests/pmu-events.c b/tools/perf/tests/pmu-events.c
index 669eea831793..104de7ba1a93 100644
--- a/tools/perf/tests/pmu-events.c
+++ b/tools/perf/tests/pmu-events.c
@@ -418,7 +418,8 @@ static int compare_alias_to_test_event(struct perf_pmu_alias *alias,
 }
 
 /* Verify generated events from pmu-events.c are as expected */
-static int test_pmu_event_table(void)
+static int test__pmu_event_table(struct test_suite *test __maybe_unused,
+				 int subtest __maybe_unused)
 {
 	const struct pmu_event *sys_event_tables = __test_pmu_get_sys_events_table();
 	const struct pmu_events_map *map = __test_pmu_get_events_map();
@@ -705,7 +706,8 @@ static struct perf_pmu_test_pmu test_pmus[] = {
 };
 
 /* Test that aliases generated are as expected */
-static int test_aliases(void)
+static int test__aliases(struct test_suite *test __maybe_unused,
+			int subtest __maybe_unused)
 {
 	struct perf_pmu *pmu = NULL;
 	unsigned long i;
@@ -894,7 +896,8 @@ static int resolve_metric_simple(struct expr_parse_ctx *pctx,
 
 }
 
-static int test_parsing(void)
+static int test__parsing(struct test_suite *test __maybe_unused,
+			 int subtest __maybe_unused)
 {
 	const struct pmu_events_map *cpus_map = pmu_events_map__find();
 	const struct pmu_events_map *map;
@@ -1036,7 +1039,8 @@ static int metric_parse_fake(const char *str)
  * or all defined cpus via the 'fake_pmu'
  * in parse_events.
  */
-static int test_parsing_fake(void)
+static int test__parsing_fake(struct test_suite *test __maybe_unused,
+			      int subtest __maybe_unused)
 {
 	const struct pmu_events_map *map;
 	const struct pmu_event *pe;
@@ -1070,66 +1074,16 @@ static int test_parsing_fake(void)
 	return 0;
 }
 
-static const struct {
-	int (*func)(void);
-	const char *desc;
-} pmu_events_testcase_table[] = {
-	{
-		.func = test_pmu_event_table,
-		.desc = "PMU event table sanity",
-	},
-	{
-		.func = test_aliases,
-		.desc = "PMU event map aliases",
-	},
-	{
-		.func = test_parsing,
-		.desc = "Parsing of PMU event table metrics",
-	},
-	{
-		.func = test_parsing_fake,
-		.desc = "Parsing of PMU event table metrics with fake PMUs",
-	},
+static struct test_case pmu_events_tests[] = {
+	TEST_CASE("PMU event table sanity", pmu_event_table),
+	TEST_CASE("PMU event map aliases", aliases),
+	TEST_CASE_REASON("Parsing of PMU event table metrics", parsing,
+			 "some metrics failed"),
+	TEST_CASE("Parsing of PMU event table metrics with fake PMUs", parsing_fake),
+	{ .name = NULL, }
 };
 
-static const char *test__pmu_events_subtest_get_desc(int subtest)
-{
-	if (subtest < 0 ||
-	    subtest >= (int)ARRAY_SIZE(pmu_events_testcase_table))
-		return NULL;
-	return pmu_events_testcase_table[subtest].desc;
-}
-
-static const char *test__pmu_events_subtest_skip_reason(int subtest)
-{
-	if (subtest < 0 ||
-	    subtest >= (int)ARRAY_SIZE(pmu_events_testcase_table))
-		return NULL;
-	if (pmu_events_testcase_table[subtest].func != test_parsing)
-		return NULL;
-	return "some metrics failed";
-}
-
-static int test__pmu_events_subtest_get_nr(void)
-{
-	return (int)ARRAY_SIZE(pmu_events_testcase_table);
-}
-
-static int test__pmu_events(struct test_suite *test __maybe_unused, int subtest)
-{
-	if (subtest < 0 ||
-	    subtest >= (int)ARRAY_SIZE(pmu_events_testcase_table))
-		return TEST_FAIL;
-	return pmu_events_testcase_table[subtest].func();
-}
-
 struct test_suite suite__pmu_events = {
 	.desc = "PMU events",
-	.func = test__pmu_events,
-	.subtest = {
-		.skip_if_fail	= false,
-		.get_nr		= test__pmu_events_subtest_get_nr,
-		.get_desc	= test__pmu_events_subtest_get_desc,
-		.skip_reason	= test__pmu_events_subtest_skip_reason,
-	},
+	.test_cases = pmu_events_tests,
 };
-- 
2.33.1.1089.g2158813163f-goog