Added assert.sh in the project to avoid eternal dependency
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Thomas VIAL
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#!/bin/bash
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# assert.sh 1.1 - bash unit testing framework
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# Copyright (C) 2009-2015 Robert Lehmann
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#
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# http://github.com/lehmannro/assert.sh
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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export DISCOVERONLY=${DISCOVERONLY:-}
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export DEBUG=${DEBUG:-}
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export STOP=${STOP:-}
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export INVARIANT=${INVARIANT:-}
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export CONTINUE=${CONTINUE:-}
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args="$(getopt -n "$0" -l \
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verbose,help,stop,discover,invariant,continue vhxdic $*)" \
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|| exit -1
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for arg in $args; do
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case "$arg" in
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-h)
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echo "$0 [-vxidc]" \
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"[--verbose] [--stop] [--invariant] [--discover] [--continue]"
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echo "`sed 's/./ /g' <<< "$0"` [-h] [--help]"
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exit 0;;
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--help)
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cat <<EOF
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Usage: $0 [options]
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Language-agnostic unit tests for subprocesses.
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Options:
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-v, --verbose generate output for every individual test case
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-x, --stop stop running tests after the first failure
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-i, --invariant do not measure timings to remain invariant between runs
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-d, --discover collect test suites only, do not run any tests
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-c, --continue do not modify exit code to test suite status
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-h show brief usage information and exit
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--help show this help message and exit
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EOF
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exit 0;;
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-v|--verbose)
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DEBUG=1;;
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-x|--stop)
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STOP=1;;
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-i|--invariant)
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INVARIANT=1;;
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-d|--discover)
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DISCOVERONLY=1;;
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-c|--continue)
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CONTINUE=1;;
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esac
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done
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_indent=$'\n\t' # local format helper
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_assert_reset() {
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tests_ran=0
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tests_failed=0
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tests_errors=()
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tests_starttime="$(date +%s%N)" # nanoseconds_since_epoch
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}
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assert_end() {
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# assert_end [suite ..]
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tests_endtime="$(date +%s%N)"
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# required visible decimal place for seconds (leading zeros if needed)
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local tests_time="$( \
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printf "%010d" "$(( ${tests_endtime/%N/000000000}
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- ${tests_starttime/%N/000000000} ))")" # in ns
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tests="$tests_ran ${*:+$* }tests"
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[[ -n "$DISCOVERONLY" ]] && echo "collected $tests." && _assert_reset && return
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[[ -n "$DEBUG" ]] && echo
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# to get report_time split tests_time on 2 substrings:
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# ${tests_time:0:${#tests_time}-9} - seconds
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# ${tests_time:${#tests_time}-9:3} - milliseconds
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[[ -z "$INVARIANT" ]] \
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&& report_time=" in ${tests_time:0:${#tests_time}-9}.${tests_time:${#tests_time}-9:3}s" \
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|| report_time=
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if [[ "$tests_failed" -eq 0 ]]; then
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echo "all $tests passed$report_time."
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else
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for error in "${tests_errors[@]}"; do echo "$error"; done
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echo "$tests_failed of $tests failed$report_time."
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fi
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tests_failed_previous=$tests_failed
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[[ $tests_failed -gt 0 ]] && tests_suite_status=1
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_assert_reset
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}
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assert() {
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# assert <command> <expected stdout> [stdin]
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(( tests_ran++ )) || :
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[[ -z "$DISCOVERONLY" ]] || return
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expected=$(echo -ne "${2:-}")
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result="$(eval 2>/dev/null $1 <<< ${3:-})" || true
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if [[ "$result" == "$expected" ]]; then
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[[ -z "$DEBUG" ]] || echo -n .
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return
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fi
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result="$(sed -e :a -e '$!N;s/\n/\\n/;ta' <<< "$result")"
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[[ -z "$result" ]] && result="nothing" || result="\"$result\""
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[[ -z "$2" ]] && expected="nothing" || expected="\"$2\""
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_assert_fail "expected $expected${_indent}got $result" "$1" "$3"
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}
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assert_raises() {
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# assert_raises <command> <expected code> [stdin]
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(( tests_ran++ )) || :
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[[ -z "$DISCOVERONLY" ]] || return
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status=0
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(eval $1 <<< ${3:-}) > /dev/null 2>&1 || status=$?
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expected=${2:-0}
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if [[ "$status" -eq "$expected" ]]; then
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[[ -z "$DEBUG" ]] || echo -n .
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return
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fi
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_assert_fail "program terminated with code $status instead of $expected" "$1" "$3"
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}
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_assert_fail() {
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# _assert_fail <failure> <command> <stdin>
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[[ -n "$DEBUG" ]] && echo -n X
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report="test #$tests_ran \"$2${3:+ <<< $3}\" failed:${_indent}$1"
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if [[ -n "$STOP" ]]; then
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[[ -n "$DEBUG" ]] && echo
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echo "$report"
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exit 1
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fi
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tests_errors[$tests_failed]="$report"
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(( tests_failed++ )) || :
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}
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skip_if() {
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# skip_if <command ..>
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(eval $@) > /dev/null 2>&1 && status=0 || status=$?
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[[ "$status" -eq 0 ]] || return
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skip
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}
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skip() {
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# skip (no arguments)
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shopt -q extdebug && tests_extdebug=0 || tests_extdebug=1
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shopt -q -o errexit && tests_errexit=0 || tests_errexit=1
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# enable extdebug so returning 1 in a DEBUG trap handler skips next command
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shopt -s extdebug
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# disable errexit (set -e) so we can safely return 1 without causing exit
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set +o errexit
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tests_trapped=0
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trap _skip DEBUG
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}
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_skip() {
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if [[ $tests_trapped -eq 0 ]]; then
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# DEBUG trap for command we want to skip. Do not remove the handler
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# yet because *after* the command we need to reset extdebug/errexit (in
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# another DEBUG trap.)
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tests_trapped=1
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[[ -z "$DEBUG" ]] || echo -n s
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return 1
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else
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trap - DEBUG
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[[ $tests_extdebug -eq 0 ]] || shopt -u extdebug
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[[ $tests_errexit -eq 1 ]] || set -o errexit
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return 0
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fi
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}
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_assert_reset
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: ${tests_suite_status:=0} # remember if any of the tests failed so far
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_assert_cleanup() {
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local status=$?
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# modify exit code if it's not already non-zero
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[[ $status -eq 0 && -z $CONTINUE ]] && exit $tests_suite_status
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}
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trap _assert_cleanup EXIT
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