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# SPDX-License-Identifier: LGPL-2.1-or-later
# shellcheck shell=bash
if [[ "${BASH_SOURCE[0]}" -ef "$0" ]]; then
echo >&2 "This file should not be executed directly"
exit 1
fi
declare -i _CHILD_PID=0
_PASSED_TESTS=()
# Like trap, but passes the signal name as the first argument
_trap_with_sig() {
local fun="${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"
}
_show_summary() {(
set +x
if [[ ${#_PASSED_TESTS[@]} -eq 0 ]]; then
echo >&2 "No tests were executed, this is most likely an error"
exit 1
fi
printf "PASSED TESTS: %3d:\n" "${#_PASSED_TESTS[@]}"
echo "------------------"
for t in "${_PASSED_TESTS[@]}"; do
echo "$t"
done
)}
# 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
: "--- $subtest BEGIN ---"
SECONDS=0
"./$subtest" &
_CHILD_PID=$!
if ! _wait_harder "$_CHILD_PID"; then
echo "Subtest $subtest failed"
return 1
fi
_PASSED_TESTS+=("$subtest")
: "--- $subtest END (${SECONDS}s) ---"
done
_show_summary
}
# Run all subtests (i.e. files named as testsuite-<testid>.<subtest_name>.sh)
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
if [[ -n "${TEST_MATCH_SUBTEST:-}" ]] && ! [[ "$subtest" =~ $TEST_MATCH_SUBTEST ]]; then
echo "Skipping $subtest (not matching '$TEST_MATCH_SUBTEST')"
continue
fi
: "--- $subtest BEGIN ---"
SECONDS=0
if ! "./$subtest"; then
echo "Subtest $subtest failed"
return 1
fi
_PASSED_TESTS+=("$subtest")
: "--- $subtest END (${SECONDS}s) ---"
done
_show_summary
}
# Run all test cases (i.e. functions prefixed with testcase_ in the current namespace)
run_testcases() {
local testcase testcases
# Create a list of all functions prefixed with testcase_
mapfile -t testcases < <(declare -F | awk '$3 ~ /^testcase_/ {print $3;}')
if [[ "${#testcases[@]}" -eq 0 ]]; then
echo >&2 "No test cases found, this is most likely an error"
exit 1
fi
for testcase in "${testcases[@]}"; do
if [[ -n "${TEST_MATCH_TESTCASE:-}" ]] && ! [[ "$testcase" =~ $TEST_MATCH_TESTCASE ]]; then
echo "Skipping $testcase (not matching '$TEST_MATCH_TESTCASE')"
continue
fi
: "+++ $testcase BEGIN +++"
# Note: the subshell here is used purposefully, otherwise we might
# unexpectedly inherit a RETURN trap handler from the called
# function and call it for the second time once we return,
# causing a "double-free"
("$testcase")
: "+++ $testcase END +++"
done
}
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