[PATCH] selftests: kselftest framework: add error counter

[Shuah Khan]

Some tests track errors in addition to test failures. Add ksft_error
counter, ksft_get_error_cnt(), and ksft_test_result_error() API to
get the counter value and print error message.

Update ksft_print_cnts(), and ksft_test_num() to include error counter.

Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
---
 tools/testing/selftests/kselftest.h | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h
index 45bf25905279..e2714d0a1452 100644
--- a/tools/testing/selftests/kselftest.h
+++ b/tools/testing/selftests/kselftest.h
@@ -28,6 +28,7 @@ struct ksft_count {
 	unsigned int ksft_xfail;
 	unsigned int ksft_xpass;
 	unsigned int ksft_xskip;
+	unsigned int ksft_error;
 };
 
 static struct ksft_count ksft_cnt;
@@ -36,7 +37,7 @@ 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;
+		ksft_cnt.ksft_xskip + ksft_cnt.ksft_error;
 }
 
 static inline void ksft_inc_pass_cnt(void) { ksft_cnt.ksft_pass++; }
@@ -44,12 +45,14 @@ 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_inc_error_cnt(void) { ksft_cnt.ksft_error++; }
 
 static inline int ksft_get_pass_cnt(void) { return ksft_cnt.ksft_pass; }
 static inline int ksft_get_fail_cnt(void) { return ksft_cnt.ksft_fail; }
 static inline int ksft_get_xfail_cnt(void) { return ksft_cnt.ksft_xfail; }
 static inline int ksft_get_xpass_cnt(void) { return ksft_cnt.ksft_xpass; }
 static inline int ksft_get_xskip_cnt(void) { return ksft_cnt.ksft_xskip; }
+static inline int ksft_get_error_cnt(void) { return ksft_cnt.ksft_error; }
 
 static inline void ksft_print_header(void)
 {
@@ -58,10 +61,10 @@ static inline void ksft_print_header(void)
 
 static inline void ksft_print_cnts(void)
 {
-	printf("Pass %d Fail %d Xfail %d Xpass %d Skip %d\n",
+	printf("Pass %d Fail %d Xfail %d Xpass %d Skip %d Error %d\n",
 		ksft_cnt.ksft_pass, ksft_cnt.ksft_fail,
 		ksft_cnt.ksft_xfail, ksft_cnt.ksft_xpass,
-		ksft_cnt.ksft_xskip);
+		ksft_cnt.ksft_xskip, ksft_cnt.ksft_error);
 	printf("1..%d\n", ksft_test_num());
 }
 
@@ -111,6 +114,18 @@ static inline void ksft_test_result_skip(const char *msg, ...)
 	va_end(args);
 }
 
+static inline void ksft_test_result_error(const char *msg, ...)
+{
+	va_list args;
+
+	ksft_cnt.ksft_error++;
+
+	va_start(args, msg);
+	printf("not ok %d # error ", ksft_test_num());
+	vprintf(msg, args);
+	va_end(args);
+}
+
 static inline int ksft_exit_pass(void)
 {
 	ksft_print_cnts();
-- 
2.11.0