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test: avoid leaking open loop devices

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When a subshell is used ('make' or 'make all') the LOOPDEV environment
variable, which is used to store the opened loop device, is lost.
So the cleanup on trap/exit doesn't do anything, and the loop
device used to mount the test image is left around.

Avoid using a subshell to fix the issue.
This commit is contained in:
Luca Boccassi 2021-02-16 23:47:34 +00:00 committed by Lennart Poettering
parent 50fc7d7036
commit 0761da386a
1 changed files with 9 additions and 5 deletions
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14
test/test-functions
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@ -2320,11 +2320,15 @@ do_test() {
--all)
ret=0
echo -n "${testname}: $TEST_DESCRIPTION "
(
test_setup
test_setup_cleanup
test_run "$2"
) </dev/null >"$TESTLOG" 2>&1 || ret=$?
# Do not use a subshell, otherwise cleanup variables (LOOPDEV) will be lost
# and loop devices will leak
test_setup </dev/null >"$TESTLOG" 2>&1 || ret=$?
if [ $ret -eq 0 ]; then
test_setup_cleanup </dev/null >>"$TESTLOG" 2>&1 || ret=$?
fi
if [ $ret -eq 0 ]; then
test_run "$2" </dev/null >>"$TESTLOG" 2>&1 || ret=$?
fi
test_cleanup
if [ $ret -eq 0 ]; then
rm "$TESTLOG"