[PATCH v2 1/3] perf test: Check test suite description properly

[Namhyung Kim <namhyung@kernel.org>]

Currently perf test checks the given string with descriptions for both
test suites and cases (subtests).  But sometimes it's confusing since
the subtests don't contain the important keyword.

I think it's better to check the suite level and run the whole suite
together if it matches description in the suite.

Before:
  $ perf test hwmon
  (no output)

After:
  $ perf test hwmon
   10: Hwmon PMU                                                       :
   10.1: Basic parsing test                                            : Ok
   10.2: Parsing without PMU name                                      : Ok
   10.3: Parsing with PMU name                                         : Ok

And keep the existing behavior when it only matches test description only.

  $ perf test "Equal cpu map"
   39.5: Equal cpu map                                                 : Ok

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/tests/builtin-test.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 80375ca39a37a256..846c9b3a732c9b3a 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -539,6 +539,7 @@ static int __cmd_test(struct test_suite **suites, int argc, const char *argv[],
 
 		for (struct test_suite **t = suites; *t; t++, curr_suite++) {
 			int curr_test_case;
+			bool suite_matched = false;
 
 			if (!perf_test__matches(test_description(*t, -1), curr_suite, argc, argv)) {
 				/*
@@ -556,6 +557,8 @@ static int __cmd_test(struct test_suite **suites, int argc, const char *argv[],
 				}
 				if (skip)
 					continue;
+			} else {
+				suite_matched = true;
 			}
 
 			if (intlist__find(skiplist, curr_suite + 1)) {
@@ -567,10 +570,10 @@ static int __cmd_test(struct test_suite **suites, int argc, const char *argv[],
 
 			for (unsigned int run = 0; run < runs_per_test; run++) {
 				test_suite__for_each_test_case(*t, curr_test_case) {
-					if (!perf_test__matches(test_description(*t, curr_test_case),
+					if (!suite_matched &&
+					    !perf_test__matches(test_description(*t, curr_test_case),
 								curr_suite, argc, argv))
 						continue;
-
 					err = start_test(*t, curr_suite, curr_test_case,
 							 &child_tests[child_test_num++],
 							 width, pass);
-- 
2.50.0.727.gbf7dc18ff4-goog