[PATCH nft 2/3] tests/shell: simplify collecting error result in "test-wrapper.sh"

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The previous pattern was unnecessarily confusing.

The "$rc_{dump,valgrind,tainted}" variable should only remember whether
that particular check failed, not the overall exit code of the test
wrapper.

Otherwise, if you want to know in which case the wrapper exits with code
122, you have to oddly follow the rc_valgrind variable.

This change will make more sense, when we add another such variable, but
which will be assigned the non-zero value at multiple places. Assigning
there the exit code of the wrapper, duplicates the places where the
condition maps to the exit code.

Signed-off-by: Thomas Haller <thaller@xxxxxxxxxx>
---
 tests/shell/helpers/test-wrapper.sh | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/tests/shell/helpers/test-wrapper.sh b/tests/shell/helpers/test-wrapper.sh
index ad6a71031506..165a944da2b1 100755
--- a/tests/shell/helpers/test-wrapper.sh
+++ b/tests/shell/helpers/test-wrapper.sh
@@ -124,7 +124,7 @@ rc_dump=0
 if [ "$rc_test" -ne 77 -a -f "$DUMPFILE" ] ; then
 	if [ "$dump_written" != y ] ; then
 		if ! $DIFF -u "$DUMPFILE" "$NFT_TEST_TESTTMPDIR/ruleset-after" &> "$NFT_TEST_TESTTMPDIR/ruleset-diff" ; then
-			rc_dump=124
+			rc_dump=1
 		else
 			rm -f "$NFT_TEST_TESTTMPDIR/ruleset-diff"
 		fi
@@ -135,27 +135,27 @@ if [ "$rc_dump" -ne 0 ] ; then
 fi
 
 rc_valgrind=0
-[ -f "$NFT_TEST_TESTTMPDIR/rc-failed-valgrind" ] && rc_valgrind=122
+[ -f "$NFT_TEST_TESTTMPDIR/rc-failed-valgrind" ] && rc_valgrind=1
 
 rc_tainted=0
 if [ "$tainted_before" != "$tainted_after" ] ; then
 	echo "$tainted_after" > "$NFT_TEST_TESTTMPDIR/rc-failed-tainted"
-	rc_tainted=123
+	rc_tainted=1
 fi
 
 if [ "$rc_valgrind" -ne 0 ] ; then
-	rc_exit="$rc_valgrind"
+	rc_exit=122
 elif [ "$rc_tainted" -ne 0 ] ; then
-	rc_exit="$rc_tainted"
+	rc_exit=123
 elif [ "$rc_test" -ge 118 -a "$rc_test" -le 124 ] ; then
 	# Special exit codes are reserved. Coerce them.
-	rc_exit="125"
+	rc_exit=125
 elif [ "$rc_test" -ne 0 ] ; then
 	rc_exit="$rc_test"
 elif [ "$rc_dump" -ne 0 ] ; then
-	rc_exit="$rc_dump"
+	rc_exit=124
 else
-	rc_exit="0"
+	rc_exit=0
 fi
 
 
-- 
2.41.0




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