test: Add a command function for test execution

The logic to either iterate through a list of tests or pick a named test
is common to at lest two test suits. Move this logic into a new function
and call it from the environment tests.

Signed-off-by: Simon Glass <sjg@chromium.org>

include/test/suites.h

@@ -8,6 +8,22 @@
 #ifndef __TEST_SUITES_H__
 #define __TEST_SUITES_H__
 
+struct unit_test;
+
+/**
+ * cmd_ut_category() - Run a category of unit tests
+ *
+ * @name:	Category name
+ * @tests:	List of tests to run
+ * @n_ents:	Number of tests in @tests
+ * @argc:	Argument count provided. Must be <= 1. If this is 1 then all
+ *		tests are run, otherwise only the one named @argv[1] is run.
+ * @argv:	Arguments: argv[1] is the test to run (if @argc >= 2)
+ * @return 0 if OK, CMD_RET_FAILURE on failure
+ */
+int cmd_ut_category(const char *name, struct unit_test *tests, int n_ents,
+		    int argc, char * const argv[]);
+
 int do_ut_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 int do_ut_env(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 int do_ut_overlay(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);

test/cmd_ut.c

@@ -8,9 +8,34 @@
 #include <common.h>
 #include <command.h>
 #include <test/suites.h>
+#include <test/test.h>
 
 static int do_ut_all(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 
+int cmd_ut_category(const char *name, struct unit_test *tests, int n_ents,
+		    int argc, char * const argv[])
+{
+	struct unit_test_state uts = { .fail_count = 0 };
+	struct unit_test *test;
+
+	if (argc == 1)
+		printf("Running %d %s tests\n", n_ents, name);
+
+	for (test = tests; test < tests + n_ents; test++) {
+		if (argc > 1 && strcmp(argv[1], test->name))
+			continue;
+		printf("Test: %s\n", test->name);
+
+		uts.start = mallinfo();
+
+		test->func(&uts);
+	}
+
+	printf("Failures: %d\n", uts.fail_count);
+
+	return uts.fail_count ? CMD_RET_FAILURE : 0;
+}
+
 static cmd_tbl_t cmd_ut_sub[] = {
 	U_BOOT_CMD_MKENT(all, CONFIG_SYS_MAXARGS, 1, do_ut_all, "", ""),
 #if defined(CONFIG_UT_DM)

test/env/cmd_ut_env.c

@@ -15,23 +15,6 @@ int do_ut_env(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	struct unit_test *tests = ll_entry_start(struct unit_test, env_test);
 	const int n_ents = ll_entry_count(struct unit_test, env_test);
-	struct unit_test_state uts = { .fail_count = 0 };
-	struct unit_test *test;
 
-	if (argc == 1)
-		printf("Running %d environment tests\n", n_ents);
-
-	for (test = tests; test < tests + n_ents; test++) {
-		if (argc > 1 && strcmp(argv[1], test->name))
-			continue;
-		printf("Test: %s\n", test->name);
-
-		uts.start = mallinfo();
-
-		test->func(&uts);
-	}
-
-	printf("Failures: %d\n", uts.fail_count);
-
-	return uts.fail_count ? CMD_RET_FAILURE : 0;
+	return cmd_ut_category("environment", tests, n_ents, argc, argv);
 }