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systemd/test/units/test-control.sh
Frantisek Sumsal 15bbc0c107 test: abstract the common test parts into a utility script
Also, instead of bailing out on the first failed subtest, always run all
subtests and print a summary at the end (with an appropriate exit code).
2023-05-10 21:26:26 +02:00

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3.2 KiB
Bash

# SPDX-License-Identifier: LGPL-2.1-or-later
# shellcheck shell=bash
if [[ "${BASH_SOURCE[0]}" -ef "$0" ]]; then
echo >&2 "This file should not be executed directly"
exit 1
fi
declare -i CHILD_PID=0
PASSED_TESTS=()
FAILED_TESTS=()
# Like trap, but passes the signal name as the first argument
trap_with_sig() {
local fun="${1:?}"
local sig
shift
for sig in "$@"; do
# shellcheck disable=SC2064
trap "$fun $sig" "$sig"
done
}
# Propagate the caught signal to the current child process
handle_signal() {
local sig="${1:?}"
if [[ $CHILD_PID -gt 0 ]]; then
echo "Propagating signal $sig to child process $CHILD_PID"
kill -s "$sig" "$CHILD_PID"
fi
}
# In order to make the handle_signal() stuff above work, we have to execute
# each script asynchronously, since bash won't execute traps until the currently
# executed command finishes. This, however, introduces another issue regarding
# how bash's wait works. Quoting:
#
# When bash is waiting for an asynchronous command via the wait builtin,
# the reception of a signal for which a trap has been set will cause the wait
# builtin to return immediately with an exit status greater than 128,
# immediately after which the trap is executed.
#
# In other words - every time we propagate a signal, wait returns with
# 128+signal, so we have to wait again - repeat until the process dies.
wait_harder() {
local pid="${1:?}"
while kill -0 "$pid" &>/dev/null; do
wait "$pid" || :
done
wait "$pid"
}
# Like run_subtests, but propagate specified signals to the subtest script
run_subtests_with_signals() {
local subtests=("${0%.sh}".*.sh)
local subtest
if [[ "${#subtests[@]}" -eq 0 ]]; then
echo >&2 "No subtests found for file $0"
exit 1
fi
if [[ "$#" -eq 0 ]]; then
echo >&2 "No signals to propagate were specified"
exit 1
fi
trap_with_sig handle_signal "$@"
for subtest in "${subtests[@]}"; do
: "--- $subtest BEGIN ---"
"./$subtest" &
CHILD_PID=$!
wait_harder "$CHILD_PID" && PASSED_TESTS+=("$subtest") || FAILED_TESTS+=("$subtest")
: "--- $subtest END ---"
done
show_summary
}
run_subtests() {
local subtests=("${0%.sh}".*.sh)
local subtest
if [[ "${#subtests[@]}" -eq 0 ]]; then
echo >&2 "No subtests found for file $0"
exit 1
fi
for subtest in "${subtests[@]}"; do
: "--- $subtest BEGIN ---"
"./$subtest" && PASSED_TESTS+=("$subtest") || FAILED_TESTS+=("$subtest")
: "--- $subtest END ---"
done
show_summary
}
show_summary() {(
set +x
if [[ ${#PASSED_TESTS[@]} -eq 0 && ${#FAILED_TESTS[@]} -eq 0 ]]; then
echo >&2 "No tests were executed, this is most likely an error"
exit 1
fi
printf "PASSED TESTS: %3d:\n" "${#PASSED_TESTS[@]}"
echo "------------------"
for t in "${PASSED_TESTS[@]}"; do
echo "$t"
done
if [[ "${#FAILED_TESTS[@]}" -ne 0 ]]; then
printf "FAILED TESTS: %3d:\n" "${#FAILED_TESTS[@]}"
echo "------------------"
for t in "${FAILED_TESTS[@]}"; do
echo "$t"
done
fi
[[ "${#FAILED_TESTS[@]}" -eq 0 ]]
)}