kselftest: add TAP13 conformant versions of ksft_* functions

Add TAP13 conformat output functions to kselftest.h.

Also add exit functions that output TAP13 exiting text, as well as
functions to keep track of testing progress.

Signed-off-by: Paul Elder <paul.elder@pitt.edu>
Signed-off-by: Alice Ferrazzi <alice.ferrazzi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>

tools/testing/selftests/kselftest.h

@@ -31,38 +31,82 @@ struct ksft_count {
 
 static struct ksft_count ksft_cnt;
 
+static inline int ksft_test_num(void)
+{
+	return ksft_cnt.ksft_pass + ksft_cnt.ksft_fail +
+		ksft_cnt.ksft_xfail + ksft_cnt.ksft_xpass +
+		ksft_cnt.ksft_xskip;
+}
+
 static inline void ksft_inc_pass_cnt(void) { ksft_cnt.ksft_pass++; }
 static inline void ksft_inc_fail_cnt(void) { ksft_cnt.ksft_fail++; }
 static inline void ksft_inc_xfail_cnt(void) { ksft_cnt.ksft_xfail++; }
 static inline void ksft_inc_xpass_cnt(void) { ksft_cnt.ksft_xpass++; }
 static inline void ksft_inc_xskip_cnt(void) { ksft_cnt.ksft_xskip++; }
 
+static inline void ksft_print_header(void)
+{
+	printf("TAP version 13\n");
+}
+
 static inline void ksft_print_cnts(void)
 {
-	printf("Pass: %d Fail: %d Xfail: %d Xpass: %d, Xskip: %d\n",
-		ksft_cnt.ksft_pass, ksft_cnt.ksft_fail,
-		ksft_cnt.ksft_xfail, ksft_cnt.ksft_xpass,
-		ksft_cnt.ksft_xskip);
+	printf("1..%d\n", ksft_test_num());
+}
+
+static inline void ksft_test_result_pass(const char *msg)
+{
+	ksft_cnt.ksft_pass++;
+	printf("ok %d %s\n", ksft_test_num(), msg);
+}
+
+static inline void ksft_test_result_fail(const char *msg)
+{
+	ksft_cnt.ksft_fail++;
+	printf("not ok %d %s\n", ksft_test_num(), msg);
+}
+
+static inline void ksft_test_result_skip(const char *msg)
+{
+	ksft_cnt.ksft_xskip++;
+	printf("ok %d # skip %s\n", ksft_test_num(), msg);
 }
 
 static inline int ksft_exit_pass(void)
 {
+	ksft_print_cnts();
 	exit(KSFT_PASS);
 }
+
 static inline int ksft_exit_fail(void)
 {
+	printf("Bail out!\n");
+	ksft_print_cnts();
 	exit(KSFT_FAIL);
 }
+
+static inline int ksft_exit_fail_msg(const char *msg)
+{
+	printf("Bail out! %s\n", msg);
+	ksft_print_cnts();
+	exit(KSFT_FAIL);
+}
+
 static inline int ksft_exit_xfail(void)
 {
+	ksft_print_cnts();
 	exit(KSFT_XFAIL);
 }
+
 static inline int ksft_exit_xpass(void)
 {
+	ksft_print_cnts();
 	exit(KSFT_XPASS);
 }
+
 static inline int ksft_exit_skip(void)
 {
+	ksft_print_cnts();
 	exit(KSFT_SKIP);
 }