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030a516314
Since bash has no namespaces, let's do the second best thing and prefix all "internal" stuff with an underscore, to minimize the chance of a name conflict in the future.
151 lines
4.1 KiB
Bash
151 lines
4.1 KiB
Bash
# SPDX-License-Identifier: LGPL-2.1-or-later
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# shellcheck shell=bash
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if [[ "${BASH_SOURCE[0]}" -ef "$0" ]]; then
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echo >&2 "This file should not be executed directly"
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exit 1
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fi
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declare -i _CHILD_PID=0
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_PASSED_TESTS=()
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_FAILED_TESTS=()
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# Like trap, but passes the signal name as the first argument
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_trap_with_sig() {
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local fun="${1:?}"
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local sig
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shift
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for sig in "$@"; do
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# shellcheck disable=SC2064
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trap "$fun $sig" "$sig"
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done
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}
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# Propagate the caught signal to the current child process
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_handle_signal() {
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local sig="${1:?}"
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if [[ $_CHILD_PID -gt 0 ]]; then
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echo "Propagating signal $sig to child process $_CHILD_PID"
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kill -s "$sig" "$_CHILD_PID"
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fi
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}
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# In order to make the _handle_signal() stuff above work, we have to execute
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# each script asynchronously, since bash won't execute traps until the currently
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# executed command finishes. This, however, introduces another issue regarding
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# how bash's wait works. Quoting:
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#
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# When bash is waiting for an asynchronous command via the wait builtin,
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# the reception of a signal for which a trap has been set will cause the wait
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# builtin to return immediately with an exit status greater than 128,
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# immediately after which the trap is executed.
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#
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# In other words - every time we propagate a signal, wait returns with
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# 128+signal, so we have to wait again - repeat until the process dies.
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_wait_harder() {
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local pid="${1:?}"
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while kill -0 "$pid" &>/dev/null; do
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wait "$pid" || :
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done
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wait "$pid"
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}
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_show_summary() {(
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set +x
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if [[ ${#_PASSED_TESTS[@]} -eq 0 && ${#_FAILED_TESTS[@]} -eq 0 ]]; then
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echo >&2 "No tests were executed, this is most likely an error"
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exit 1
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fi
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printf "PASSED TESTS: %3d:\n" "${#_PASSED_TESTS[@]}"
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echo "------------------"
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for t in "${_PASSED_TESTS[@]}"; do
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echo "$t"
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done
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if [[ "${#_FAILED_TESTS[@]}" -ne 0 ]]; then
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printf "FAILED TESTS: %3d:\n" "${#_FAILED_TESTS[@]}"
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echo "------------------"
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for t in "${_FAILED_TESTS[@]}"; do
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echo "$t"
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done
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fi
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[[ "${#_FAILED_TESTS[@]}" -eq 0 ]]
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)}
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# Like run_subtests, but propagate specified signals to the subtest script
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run_subtests_with_signals() {
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local subtests=("${0%.sh}".*.sh)
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local subtest
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if [[ "${#subtests[@]}" -eq 0 ]]; then
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echo >&2 "No subtests found for file $0"
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exit 1
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fi
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if [[ "$#" -eq 0 ]]; then
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echo >&2 "No signals to propagate were specified"
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exit 1
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fi
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_trap_with_sig _handle_signal "$@"
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for subtest in "${subtests[@]}"; do
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: "--- $subtest BEGIN ---"
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"./$subtest" &
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_CHILD_PID=$!
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_wait_harder "$_CHILD_PID" && _PASSED_TESTS+=("$subtest") || _FAILED_TESTS+=("$subtest")
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: "--- $subtest END ---"
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done
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_show_summary
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}
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# Run all subtests (i.e. files named as testsuite-<testid>.<subtest_name>.sh)
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run_subtests() {
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local subtests=("${0%.sh}".*.sh)
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local subtest
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if [[ "${#subtests[@]}" -eq 0 ]]; then
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echo >&2 "No subtests found for file $0"
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exit 1
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fi
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for subtest in "${subtests[@]}"; do
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: "--- $subtest BEGIN ---"
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"./$subtest" && _PASSED_TESTS+=("$subtest") || _FAILED_TESTS+=("$subtest")
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: "--- $subtest END ---"
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done
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_show_summary
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}
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# Run all test cases (i.e. functions prefixed with testcase_ in the current namespace)
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run_testcases() {
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local testcase testcases
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# Create a list of all functions prefixed with testcase_
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mapfile -t testcases < <(declare -F | awk '$3 ~ /^testcase_/ {print $3;}')
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if [[ "${#testcases[@]}" -eq 0 ]]; then
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echo >&2 "No test cases found, this is most likely an error"
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exit 1
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fi
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for testcase in "${testcases[@]}"; do
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: "+++ $testcase BEGIN +++"
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# Note: the subshell here is used purposefully, otherwise we might
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# unexpectedly inherit a RETURN trap handler from the called
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# function and call it for the second time once we return,
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# causing a "double-free"
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("$testcase")
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: "+++ $testcase END +++"
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done
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}
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