kselftest/alsa: pcm - Always run the default set of tests

Rather than allowing the system specific tests to replace the default set
of tests instead run them in addition to the standard set of tests. In
order to avoid name collisions in the reported tests we add an additional
test class element to the reported tests. Doing this means we always get a
consistent baseline of coverage no matter what card we run on but retain
the ability to specify specific coverage for a given system.
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221208-alsa-pcm-test-hacks-v4-3-5a152e65b1e1@kernel.orgSigned-off-by: Takashi Iwai <tiwai@suse.de>

tools/testing/selftests/alsa/pcm-test.c

@@ -36,6 +36,11 @@ struct pcm_data *pcm_list = NULL;
 int num_missing = 0;
 struct pcm_data *pcm_missing = NULL;
 
+enum test_class {
+	TEST_CLASS_DEFAULT,
+	TEST_CLASS_SYSTEM,
+};
+
 void timestamp_now(timestamp_t *tstamp)
 {
 	if (clock_gettime(CLOCK_MONOTONIC_RAW, tstamp))
@@ -217,7 +222,8 @@ static void find_pcms(void)
 	snd_config_delete(config);
 }
 
-static void test_pcm_time(struct pcm_data *data, const char *test_name, snd_config_t *pcm_cfg)
+static void test_pcm_time(struct pcm_data *data, enum test_class class,
+			  const char *test_name, snd_config_t *pcm_cfg)
 {
 	char name[64], key[128], msg[256];
 	const char *cs;
@@ -236,6 +242,19 @@ static void test_pcm_time(struct pcm_data *data, const char *test_name, snd_conf
 	bool pass = false;
 	snd_pcm_hw_params_t *hw_params;
 	snd_pcm_sw_params_t *sw_params;
+	const char *test_class_name;
+
+	switch (class) {
+	case TEST_CLASS_DEFAULT:
+		test_class_name = "default";
+		break;
+	case TEST_CLASS_SYSTEM:
+		test_class_name = "system";
+		break;
+	default:
+		ksft_exit_fail_msg("Unknown test class %d\n", class);
+		break;
+	}
 
 	snd_pcm_hw_params_alloca(&hw_params);
 	snd_pcm_sw_params_alloca(&sw_params);
@@ -366,8 +385,8 @@ static void test_pcm_time(struct pcm_data *data, const char *test_name, snd_conf
 		goto __close;
 	}
 
-	ksft_print_msg("%s.%d.%d.%d.%s hw_params.%s.%s.%ld.%ld.%ld.%ld sw_params.%ld\n",
-			 test_name,
+	ksft_print_msg("%s.%s.%d.%d.%d.%s hw_params.%s.%s.%ld.%ld.%ld.%ld sw_params.%ld\n",
+		         test_class_name, test_name,
 			 data->card, data->device, data->subdevice,
 			 snd_pcm_stream_name(data->stream),
 			 snd_pcm_access_name(access),
@@ -415,8 +434,9 @@ static void test_pcm_time(struct pcm_data *data, const char *test_name, snd_conf
 	msg[0] = '\0';
 	pass = true;
 __close:
-	ksft_test_result(pass, "%s.%d.%d.%d.%s%s%s\n",
-			 test_name,
+
+	ksft_test_result(pass, "%s.%s.%d.%d.%d.%s%s%s\n",
+			 test_class_name, test_name,
 			 data->card, data->device, data->subdevice,
 			 snd_pcm_stream_name(data->stream),
 			 msg[0] ? " " : "", msg);
@@ -425,13 +445,37 @@ static void test_pcm_time(struct pcm_data *data, const char *test_name, snd_conf
 		snd_pcm_close(handle);
 }
 
+void run_time_tests(struct pcm_data *pcm, enum test_class class,
+		    snd_config_t *cfg)
+{
+	const char *test_name, *test_type;
+	snd_config_t *pcm_cfg;
+	snd_config_iterator_t i, next;
+
+	if (!cfg)
+		return;
+
+	cfg = conf_get_subtree(cfg, "test", NULL);
+	if (cfg == NULL)
+		return;
+
+	snd_config_for_each(i, next, cfg) {
+		pcm_cfg = snd_config_iterator_entry(i);
+		if (snd_config_get_id(pcm_cfg, &test_name) < 0)
+			ksft_exit_fail_msg("snd_config_get_id\n");
+		test_type = conf_get_string(pcm_cfg, "type", NULL, "time");
+		if (strcmp(test_type, "time") == 0)
+			test_pcm_time(pcm, class, test_name, pcm_cfg);
+		else
+			ksft_exit_fail_msg("unknown test type '%s'\n", test_type);
+	}
+}
+
 int main(void)
 {
 	struct pcm_data *pcm;
 	snd_config_t *global_config, *default_pcm_config, *cfg, *pcm_cfg;
-	snd_config_iterator_t i, next;
-	int num_pcm_tests = 0, num_tests;
-	const char *test_name, *test_type;
+	int num_pcm_tests = 0, num_tests, num_std_pcm_tests;
 
 	ksft_print_header();
 
@@ -444,10 +488,13 @@ int main(void)
 
 	find_pcms();
 
+	num_std_pcm_tests = conf_get_count(default_pcm_config, "test", NULL);
+
 	for (pcm = pcm_list; pcm != NULL; pcm = pcm->next) {
+		num_pcm_tests += num_std_pcm_tests;
 		cfg = pcm->pcm_config;
 		if (cfg == NULL)
-			cfg = default_pcm_config;
+			continue;
 		num_tests = conf_get_count(cfg, "test", NULL);
 		if (num_tests > 0)
 			num_pcm_tests += num_tests;
@@ -462,22 +509,8 @@ int main(void)
 	}
 
 	for (pcm = pcm_list; pcm != NULL; pcm = pcm->next) {
-		cfg = pcm->pcm_config;
-		if (cfg == NULL)
-			cfg = default_pcm_config;
-		cfg = conf_get_subtree(cfg, "test", NULL);
-		if (cfg == NULL)
-			continue;
-		snd_config_for_each(i, next, cfg) {
-			pcm_cfg = snd_config_iterator_entry(i);
-			if (snd_config_get_id(pcm_cfg, &test_name) < 0)
-				ksft_exit_fail_msg("snd_config_get_id\n");
-			test_type = conf_get_string(pcm_cfg, "type", NULL, "time");
-			if (strcmp(test_type, "time") == 0)
-				test_pcm_time(pcm, test_name, pcm_cfg);
-			else
-				ksft_exit_fail_msg("unknown test type '%s'\n", test_type);
-		}
+		run_time_tests(pcm, TEST_CLASS_DEFAULT, default_pcm_config);
+		run_time_tests(pcm, TEST_CLASS_SYSTEM, pcm->pcm_config);
 	}
 
 	snd_config_delete(global_config);