linux-kernel - [PATCH v2] selftests: warn if failure is due to lack of executable bit

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Date:   Thu,  3 Aug 2017 13:24:36 -0700
From:   "Luis R. Rodriguez" <mcgrof@...nel.org>
To:     shuah@...nel.org, linux-kselftest@...r.kernel.org
Cc:     akpm@...ux-foundation.org, keescook@...omium.org, pmladek@...e.com,
        dan.carpenter@...cle.com, colin.king@...onical.com,
        dcb314@...mail.com, linux-kernel@...r.kernel.org,
        "Luis R. Rodriguez" <mcgrof@...nel.org>
Subject: [PATCH v2] selftests: warn if failure is due to lack of executable bit

Executing selftests is fragile as if someone forgot to set a secript
as executable the test will fail, and you won't know for sure if the
failure was caused by the lack of proper permissions or something else.

Setting scripts as executable is required, this also enable folks to
execute selftests as independent units.

Signed-off-by: Luis R. Rodriguez <mcgrof@...nel.org>
---
 tools/testing/selftests/lib.mk | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 959273c3a52e..e71f8e4633b1 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -14,7 +14,12 @@ all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
 define RUN_TESTS
 	@for TEST in $(TEST_GEN_PROGS) $(TEST_PROGS); do \
 		BASENAME_TEST=`basename $$TEST`;	\
-		cd `dirname $$TEST`; (./$$BASENAME_TEST && echo "selftests: $$BASENAME_TEST [PASS]") || echo "selftests:  $$BASENAME_TEST [FAIL]"; cd -;\
+		if [ ! -x $$BASENAME_TEST ]; then	\
+			echo "selftests: Warning: file $$BASENAME_TEST is not executable, correct this.";\
+			echo "selftests: $$BASENAME_TEST [FAIL]"; \
+		else					\
+			cd `dirname $$TEST`; (./$$BASENAME_TEST && echo "selftests: $$BASENAME_TEST [PASS]") || echo "selftests:  $$BASENAME_TEST [FAIL]"; cd -;\
+		fi;					\
 	done;
 endef
 
-- 
2.11.0