junit-test-summary.bash

#!/usr/bin/env bash

set -o errexit -o pipefail -o noclobber -o nounset

trap 'e=$?; if [ "$e" -ne "0" ]; then printf "LINE $BASH_LINENO: exit %s <- ${BASH_COMMAND}%s\\n" "$e" "$(printf " <- %s" "${FUNCNAME[@]:-main}")" 1>&2; fi' EXIT


get_summary() {
	local no_color
	local target_dir
	local num_tests
	local num_tests_failed
	local num_tests_errors
	local num_tests_skipped

	no_color=0
	if [ "$1" == "--no-color" ]; then
		no_color=1
		shift
	fi
	target_dir="$1"
	num_tests=()
	num_tests_failed=()
	num_tests_errors=()
	num_tests_skipped=()
	while IFS=	read -r -d $'\0'; do
		>&2 printf '\e[32mINFO\e[0m: parsing test results: %s\n' "${REPLY}"
		testsuite_info="$(grep -Eo '<testsuite\b[^>]*>' "${REPLY}")"
		num_tests+=("$(printf '%s' "${testsuite_info}" | sed -E 's/.*[[:blank:]]tests="([^"]*)".*/\1/')")
		num_tests_failed+=("$(printf '%s' "${testsuite_info}" | sed -E 's/.*[[:blank:]]failures="([^"]*)".*/\1/')")
		num_tests_errors+=("$(printf '%s' "${testsuite_info}" | sed -E 's/.*[[:blank:]]errors="([^"]*)".*/\1/')")
		num_tests_skipped+=("$(printf '%s' "${testsuite_info}" | sed -E 's/.*[[:blank:]]skipped="([^"]*)".*/\1/')")
	done < <(find "${target_dir}" -type f -iname '*.xml' -print0 | xargs -0 grep -El --null '<testsuites?')
	total_tests="$(printf '%d\n' "${num_tests[@]}" | paste -s -d '+' - | bc)"
	total_tests="$(printf '%d\n' "${total_tests}" "${num_tests_skipped[@]}" | paste -s -d '-' - | bc)"
	total_tests_passed="$(printf '%d\n' "${total_tests}" "${num_tests_failed[@]}" "${num_tests_errors[@]}" | paste -s -d '-' - | bc)"
	total_tests_failed="$(printf '%d\n' "${num_tests_failed[@]}" | paste -s -d '+' - | bc)"
	total_tests_errors="$(printf '%d\n' "${num_tests_errors[@]}" | paste -s -d '+' - | bc)"
	total_tests_skipped="$(printf '%d\n' "${num_tests_skipped[@]}" | paste -s -d '+' - | bc)"

	if [ "${no_color}" -eq "1" ]; then
		printf '%s\n' "Passed" "Skipped" "Failed" "Errors" "TOTAL" | paste -s -
	else
		printf '%s\n' "$(tput setaf 2)Passed" "$(tput setaf 3)Skipped" "$(tput setaf 1)Failed" "$(tput setaf 3)$(tput setab 1)Errors$(tput sgr0)" "TOTAL" | paste -s -
	fi
	printf '%d\n' "${total_tests_passed}" "${total_tests_skipped}" "${total_tests_failed}" "${total_tests_errors}" "${total_tests}" | paste -s -
}

if ! [ -x "$(command -v bc)" ]; then
	bc() {
		while read data; do
			data="$(printf '%s' "${data}" | grep -Eo '[0-9+-]*')"
			python -c "print($data)"
		done
	}
fi

get_summary "$@"