tests: Refactor implementation into separate files

1 files changed, 12 insertions, 812 deletions

diff --git a/tests/tests.sh b/tests/tests.sh
index dcef28e..3890243 100755
--- a/tests/tests.sh
+++ b/tests/tests.sh
@@ -6,815 +6,15 @@
 set -euP
 umask 022
 
-export LC_ALL=C
-export TZ=UTC0
-
-SAN_OPTIONS="halt_on_error=1:log_to_syslog=0"
-export ASAN_OPTIONS="$SAN_OPTIONS"
-export LSAN_OPTIONS="$SAN_OPTIONS"
-export MSAN_OPTIONS="$SAN_OPTIONS"
-export TSAN_OPTIONS="$SAN_OPTIONS"
-export UBSAN_OPTIONS="$SAN_OPTIONS"
-
-export LS_COLORS=""
-unset BFS_COLORS
-
-BLD=$'\e[01m'
-RED=$'\e[01;31m'
-GRN=$'\e[01;32m'
-YLW=$'\e[01;33m'
-BLU=$'\e[01;34m'
-MAG=$'\e[01;35m'
-CYN=$'\e[01;36m'
-RST=$'\e[0m'
-
-function color_fd() {
-    [ -z "${NO_COLOR:-}" ] && [ -t "$1" ]
-}
-
-color_fd 1 && COLOR_STDOUT=1 || COLOR_STDOUT=0
-color_fd 2 && COLOR_STDERR=1 || COLOR_STDERR=0
-
-# Filter out escape sequences if necessary
-function color() {
-    if color_fd 1; then
-        cat
-    else
-        sed $'s/\e\\[[^m]*m//g'
-    fi
-}
-
-# printf with auto-detected color support
-function cprintf() {
-    printf "$@" | color
-}
-
-UNAME=$(uname)
-
-if [ "$UNAME" = Darwin ]; then
-    # ASan on macOS likes to report
-    #
-    #     malloc: nano zone abandoned due to inability to preallocate reserved vm space.
-    #
-    # to syslog, which as a side effect opens a socket which might take the
-    # place of one of the standard streams if the process is launched with it
-    # closed.  This environment variable avoids the message.
-    export MallocNanoZone=0
-fi
-
-if command -v capsh &>/dev/null; then
-    if capsh --has-p=cap_dac_override &>/dev/null || capsh --has-p=cap_dac_read_search &>/dev/null; then
-	if [ -n "${BFS_TRIED_DROP:-}" ]; then
-            color >&2 <<EOF
-${RED}error:${RST} Failed to drop capabilities.
-EOF
-
-	    exit 1
-	fi
-
-        color >&2 <<EOF
-${YLW}warning:${RST} Running as ${BLD}$(id -un)${RST} is not recommended.  Dropping ${BLD}cap_dac_override${RST} and
-${BLD}cap_dac_read_search${RST}.
-
-EOF
-
-        BFS_TRIED_DROP=y exec capsh \
-            --drop=cap_dac_override,cap_dac_read_search \
-            --caps=cap_dac_override,cap_dac_read_search-eip \
-            -- "$0" "$@"
-    fi
-elif ((EUID == 0)); then
-    UNLESS=
-    if [ "$UNAME" = "Linux" ]; then
-	UNLESS=" unless ${GRN}capsh${RST} is installed"
-    fi
-
-    color >&2 <<EOF
-${RED}error:${RST} These tests expect filesystem permissions to be enforced, and therefore
-will not work when run as ${BLD}$(id -un)${RST}${UNLESS}.
-EOF
-    exit 1
-fi
-
-function usage() {
-    local pad=$(printf "%*s" ${#0} "")
-    color <<EOF
-Usage: ${GRN}$0${RST} [${BLU}--bfs${RST}=${MAG}path/to/bfs${RST}] [${BLU}--sudo${RST}[=${BLD}COMMAND${RST}]] [${BLU}--stop${RST}]
-       $pad [${BLU}--no-clean${RST}] [${BLU}--update${RST}] [${BLU}--verbose${RST}[=${BLD}LEVEL${RST}]] [${BLU}--help${RST}]
-       $pad [${BLU}--posix${RST}] [${BLU}--bsd${RST}] [${BLU}--gnu${RST}] [${BLU}--all${RST}] [${BLD}TEST${RST} [${BLD}TEST${RST} ...]]
-
-  ${BLU}--bfs${RST}=${MAG}path/to/bfs${RST}
-      Set the path to the bfs executable to test (default: ${MAG}./bin/bfs${RST})
-
-  ${BLU}--sudo${RST}[=${BLD}COMMAND${RST}]
-      Run tests that require root using ${GRN}sudo${RST} or the given ${BLD}COMMAND${RST}
-
-  ${BLU}--stop${RST}
-      Stop when the first error occurs
-
-  ${BLU}--no-clean${RST}
-      Keep the test directories around after the run
-
-  ${BLU}--update${RST}
-      Update the expected outputs for the test cases
-
-  ${BLU}--verbose${RST}=${BLD}commands${RST}
-      Log the commands that get executed
-  ${BLU}--verbose${RST}=${BLD}errors${RST}
-      Don't redirect standard error
-  ${BLU}--verbose${RST}=${BLD}skipped${RST}
-      Log which tests get skipped
-  ${BLU}--verbose${RST}=${BLD}tests${RST}
-      Log all tests that get run
-  ${BLU}--verbose${RST}
-      Log everything
-
-  ${BLU}--help${RST}
-      This message
-
-  ${BLU}--posix${RST}, ${BLU}--bsd${RST}, ${BLU}--gnu${RST}, ${BLU}--all${RST}
-      Choose which test cases to run (default: ${BLU}--all${RST})
-
-  ${BLD}TEST${RST}
-      Select individual test cases to run (e.g. ${BLD}posix/basic${RST}, ${BLD}"*exec*"${RST}, ...)
-EOF
-}
-
-PATTERNS=()
-SUDO=()
-STOP=0
-CLEAN=1
-UPDATE=0
-VERBOSE_COMMANDS=0
-VERBOSE_ERRORS=0
-VERBOSE_SKIPPED=0
-VERBOSE_TESTS=0
-
-for arg; do
-    case "$arg" in
-        --bfs=*)
-            BFS="${arg#*=}"
-            ;;
-        --posix)
-            PATTERNS+=("posix/*")
-            ;;
-        --bsd)
-            PATTERNS+=("posix/*" "common/*" "bsd/*")
-            ;;
-        --gnu)
-            PATTERNS+=("posix/*" "common/*" "gnu/*")
-            ;;
-        --all)
-            PATTERNS+=("*")
-            ;;
-        --sudo)
-            SUDO=(sudo)
-            ;;
-        --sudo=*)
-            read -a SUDO <<<"${arg#*=}"
-            ;;
-        --stop)
-            STOP=1
-            ;;
-        --no-clean|--noclean)
-            CLEAN=0
-            ;;
-        --update)
-            UPDATE=1
-            ;;
-        --verbose=commands)
-            VERBOSE_COMMANDS=1
-            ;;
-        --verbose=errors)
-            VERBOSE_ERRORS=1
-            ;;
-        --verbose=skipped)
-            VERBOSE_SKIPPED=1
-            ;;
-        --verbose=tests)
-            VERBOSE_TESTS=1
-            ;;
-        --verbose)
-            VERBOSE_COMMANDS=1
-            VERBOSE_ERRORS=1
-            VERBOSE_SKIPPED=1
-            VERBOSE_TESTS=1
-            ;;
-        --help)
-            usage
-            exit 0
-            ;;
-        -*)
-            cprintf "${RED}error:${RST} Unrecognized option '%s'.\n\n" "$arg" >&2
-            usage >&2
-            exit 1
-            ;;
-        *)
-            PATTERNS+=("$arg")
-            ;;
-    esac
-done
-
-function _realpath() {
-    (
-        cd "$(dirname -- "$1")"
-        echo "$PWD/$(basename -- "$1")"
-    )
-}
-
-TESTS=$(_realpath "$(dirname -- "${BASH_SOURCE[0]}")")
-
-if [ "${BUILDDIR-}" ]; then
-    BIN=$(_realpath "$BUILDDIR/bin")
-else
-    BIN=$(_realpath "$TESTS/../bin")
-fi
-MKSOCK="$BIN/tests/mksock"
-XTOUCH="$BIN/tests/xtouch"
-
-# Try to resolve the path to $BFS before we cd, while also supporting
-# --bfs="./bin/bfs -S ids"
-read -a BFS <<<"${BFS:-$BIN/bfs}"
-BFS[0]=$(_realpath "$(command -v "${BFS[0]}")")
-
-# The temporary directory that will hold our test data
-TMP=$(mktemp -d "${TMPDIR:-/tmp}"/bfs.XXXXXXXXXX)
-chown "$(id -u):$(id -g)" "$TMP"
-
-cd "$TESTS"
-
-if ((${#PATTERNS[@]} == 0)); then
-    PATTERNS=("*")
-fi
-
-TEST_CASES=()
-for TEST in {posix,common,bsd,gnu,bfs}/*.sh; do
-    TEST="${TEST%.sh}"
-    for PATTERN in "${PATTERNS[@]}"; do
-        if [[ $TEST == $PATTERN ]]; then
-            TEST_CASES+=("$TEST")
-            break
-        fi
-    done
-done
-
-if ((${#TEST_CASES[@]} == 0)); then
-    cprintf "${RED}error:${RST} No tests matched" >&2
-    cprintf " ${BLD}%s${RST}" "${PATTERNS[@]}" >&2
-    cprintf ".\n\n" >&2
-    usage >&2
-    exit 1
-fi
-
-function quote() {
-    printf '%q' "$1"
-    shift
-    if (($# > 0)); then
-        printf ' %q' "$@"
-    fi
-}
-
-# Run a command when this (sub)shell exits
-function defer() {
-    trap -- KILL
-    if ! trap -p EXIT | grep -q pop_defers; then
-        DEFER_CMDS=()
-        DEFER_LINES=()
-        DEFER_FILES=()
-        trap pop_defers EXIT
-    fi
-
-    DEFER_CMDS+=("$(quote "$@")")
-
-    local line file
-    read -r line file < <(caller)
-    DEFER_LINES+=("$line")
-    DEFER_FILES+=("$file")
-}
-
-function report_err() {
-    local file="${1/#*\/tests\//tests\/}"
-    set -- "$file" "${@:2}"
-
-    if ((COLOR_STDERR)); then
-        printf "${BLD}%s:%d:${RST} ${RED}error %d:${RST}\n    %s\n" "$@" >&2
-    else
-        printf "%s:%d: error %d:\n    %s\n" "$@" >&2
-    fi
-}
-
-function pop_defer() {
-    local cmd="${DEFER_CMDS[-1]}"
-    local file="${DEFER_FILES[-1]}"
-    local line="${DEFER_LINES[-1]}"
-    unset "DEFER_CMDS[-1]"
-    unset "DEFER_FILES[-1]"
-    unset "DEFER_LINES[-1]"
-
-    local ret=0
-    eval "$cmd" || ret=$?
-
-    if ((ret != 0)); then
-        report_err "$file" $line $ret "defer $cmd"
-    fi
-
-    return $ret
-}
-
-function pop_defers() {
-    local ret=0
-
-    while ((${#DEFER_CMDS[@]} > 0)); do
-        pop_defer || ret=$?
-    done
-
-    return $ret
-}
-
-function bfs_sudo() {
-    if ((${#SUDO[@]})); then
-        "${SUDO[@]}" "$@"
-    else
-        return 1
-    fi
-}
-
-function clean_scratch() {
-    if [ -e "$TMP/scratch" ]; then
-        # Try to unmount anything left behind
-        if ((${#SUDO[@]})) && command -v mountpoint &>/dev/null; then
-            for path in "$TMP"/scratch/*; do
-                if mountpoint -q "$path"; then
-                    sudo umount "$path"
-                fi
-            done
-        fi
-
-        # Reset any modified permissions
-        chmod -R +rX "$TMP/scratch"
-
-        rm -rf "$TMP/scratch"
-    fi
-
-    mkdir "$TMP/scratch"
-}
-
-# Clean up temporary directories on exit
-function cleanup() {
-    # Don't force rm to deal with long paths
-    for dir in "$TMP"/deep/*/*; do
-        if [ -d "$dir" ]; then
-            (cd "$dir" && rm -rf *)
-        fi
-    done
-
-    # In case a test left anything weird in scratch/
-    clean_scratch
-
-    rm -rf "$TMP"
-}
-
-if ((CLEAN)); then
-    defer cleanup
-else
-    echo "Test files saved to $TMP"
-fi
-
-# Creates a simple file+directory structure for tests
-function make_basic() {
-    "$XTOUCH" -p "$1"/{a,b,c/d,e/f,g/h/,i/}
-    "$XTOUCH" -p "$1"/{j/foo,k/foo/bar,l/foo/bar/baz}
-    echo baz >"$1/l/foo/bar/baz"
-}
-make_basic "$TMP/basic"
-
-# Creates a file+directory structure with various permissions for tests
-function make_perms() {
-    "$XTOUCH" -p -M000 "$1/0"
-    "$XTOUCH" -p -M444 "$1/r"
-    "$XTOUCH" -p -M222 "$1/w"
-    "$XTOUCH" -p -M644 "$1/rw"
-    "$XTOUCH" -p -M555 "$1/rx"
-    "$XTOUCH" -p -M311 "$1/wx"
-    "$XTOUCH" -p -M755 "$1/rwx"
-}
-make_perms "$TMP/perms"
-
-# Creates a file+directory structure with various symbolic and hard links
-function make_links() {
-    "$XTOUCH" -p "$1/file"
-    ln -s file "$1/symlink"
-    ln "$1/file" "$1/hardlink"
-    ln -s nowhere "$1/broken"
-    ln -s symlink/file "$1/notdir"
-    "$XTOUCH" -p "$1/deeply/nested"/{dir/,file}
-    ln -s file "$1/deeply/nested/link"
-    ln -s nowhere "$1/deeply/nested/broken"
-    ln -s deeply/nested "$1/skip"
-}
-make_links "$TMP/links"
-
-# Creates a file+directory structure with symbolic link loops
-function make_loops() {
-    "$XTOUCH" -p "$1/file"
-    ln -s file "$1/symlink"
-    ln -s nowhere "$1/broken"
-    ln -s symlink/file "$1/notdir"
-    ln -s loop "$1/loop"
-    mkdir -p "$1/deeply/nested/dir"
-    ln -s ../../deeply "$1/deeply/nested/loop"
-    ln -s deeply/nested/loop/nested "$1/skip"
-}
-make_loops "$TMP/loops"
-
-# Creates a file+directory structure with varying timestamps
-function make_times() {
-    "$XTOUCH" -p -t "1991-12-14 00:00" "$1/a"
-    "$XTOUCH" -p -t "1991-12-14 00:01" "$1/b"
-    "$XTOUCH" -p -t "1991-12-14 00:02" "$1/c"
-    ln -s a "$1/l"
-    "$XTOUCH" -p -h -t "1991-12-14 00:03" "$1/l"
-    "$XTOUCH" -p -t "1991-12-14 00:04" "$1"
-}
-make_times "$TMP/times"
-
-# Creates a file+directory structure with various weird file/directory names
-function make_weirdnames() {
-    "$XTOUCH" -p "$1/-/a"
-    "$XTOUCH" -p "$1/(/b"
-    "$XTOUCH" -p "$1/(-/c"
-    "$XTOUCH" -p "$1/!/d"
-    "$XTOUCH" -p "$1/!-/e"
-    "$XTOUCH" -p "$1/,/f"
-    "$XTOUCH" -p "$1/)/g"
-    "$XTOUCH" -p "$1/.../h"
-    "$XTOUCH" -p "$1/\\/i"
-    "$XTOUCH" -p "$1/ /j"
-    "$XTOUCH" -p "$1/[/k"
-}
-make_weirdnames "$TMP/weirdnames"
-
-# Creates a very deep directory structure for testing PATH_MAX handling
-function make_deep() {
-    mkdir -p "$1"
-
-    # $name will be 255 characters, aka _XOPEN_NAME_MAX
-    local name="0123456789ABCDEF"
-    name="${name}${name}${name}${name}"
-    name="${name}${name}${name}${name}"
-    name="${name:0:255}"
-
-    for i in {0..9} A B C D E F; do
-        "$XTOUCH" -p "$1/$i/$name"
-
-        (
-            cd "$1/$i"
-
-            # 8 * 512 == 4096 >= PATH_MAX
-            for _ in {1..8}; do
-                mv "$name" ..
-                mkdir -p "$name/$name"
-                mv "../$name" "$name/$name/"
-            done
-        )
-    done
-}
-make_deep "$TMP/deep"
-
-# Creates a directory structure with many different types, and therefore colors
-function make_rainbow() {
-    "$XTOUCH" -p "$1/file.txt"
-    "$XTOUCH" -p "$1/file.dat"
-    "$XTOUCH" -p "$1/lower".{gz,tar,tar.gz}
-    "$XTOUCH" -p "$1/upper".{GZ,TAR,TAR.GZ}
-    "$XTOUCH" -p "$1/lu.tar.GZ" "$1/ul.TAR.gz"
-    ln -s file.txt "$1/link.txt"
-    "$XTOUCH" -p "$1/mh1"
-    ln "$1/mh1" "$1/mh2"
-    mkfifo "$1/pipe"
-    # TODO: block
-    ln -s /dev/null "$1/chardev_link"
-    ln -s nowhere "$1/broken"
-    "$MKSOCK" "$1/socket"
-    "$XTOUCH" -p "$1"/s{u,g,ug}id
-    chmod u+s "$1"/su{,g}id
-    chmod g+s "$1"/s{u,}gid
-    mkdir "$1/ow" "$1"/sticky{,_ow}
-    chmod o+w "$1"/*ow
-    chmod +t "$1"/sticky*
-    "$XTOUCH" -p "$1"/exec.sh
-    chmod +x "$1"/exec.sh
-    "$XTOUCH" -p "$1/"$'\e[1m/\e[0m'
-}
-make_rainbow "$TMP/rainbow"
-
-mkdir "$TMP/scratch"
-
-# Close stdin so bfs doesn't think we're interactive
-exec </dev/null
-
-if ((VERBOSE_COMMANDS)); then
-    # dup stdout for verbose logging even when redirected
-    exec 3>&1
-fi
-
-function bfs_verbose() {
-    if ((!VERBOSE_COMMANDS)); then
-        return
-    fi
-
-    {
-        printf "${GRN}%q${RST} " "${BFS[@]}"
-
-        local expr_started=
-        for arg; do
-            if [[ $arg == -[A-Z]* ]]; then
-                printf "${CYN}%q${RST} " "$arg"
-            elif [[ $arg == [\(!] || $arg == -[ao] || $arg == -and || $arg == -or || $arg == -not ]]; then
-                expr_started=yes
-                printf "${RED}%q${RST} " "$arg"
-            elif [[ $expr_started && $arg == [\),] ]]; then
-                printf "${RED}%q${RST} " "$arg"
-            elif [[ $arg == -?* ]]; then
-                expr_started=yes
-                printf "${BLU}%q${RST} " "$arg"
-            elif [ "$expr_started" ]; then
-                printf "${BLD}%q${RST} " "$arg"
-            else
-                printf "${MAG}%q${RST} " "$arg"
-            fi
-        done
-
-        printf '\n'
-    } | color >&3
-}
-
-function invoke_bfs() {
-    bfs_verbose "$@"
-
-    local ret=0
-    "${BFS[@]}" "$@" || ret=$?
-
-    # Allow bfs to fail, but not crash
-    if ((ret > 125)); then
-        exit "$ret"
-    else
-        return "$ret"
-    fi
-}
-
-if command -v unbuffer &>/dev/null; then
-    UNBUFFER=unbuffer
-elif command -v expect_unbuffer &>/dev/null; then
-    UNBUFFER=expect_unbuffer
-fi
-
-function bfs_pty() {
-    test -n "${UNBUFFER:-}" || skip
-
-    bfs_verbose "$@"
-
-    local ret=0
-    "$UNBUFFER" bash -c 'stty cols 80 rows 24 && "$@"' bash "${BFS[@]}" "$@" || ret=$?
-
-    if ((ret > 125)); then
-        exit "$ret"
-    else
-        return "$ret"
-    fi
-}
-
-function check_exit() {
-    local expected="$1"
-    local actual="0"
-    shift
-    "$@" || actual="$?"
-    ((actual == expected))
-}
-
-# Detect colored diff support
-if ((COLOR_STDERR)) && diff --color=always /dev/null /dev/null 2>/dev/null; then
-    DIFF="diff --color=always"
-else
-    DIFF="diff"
-fi
-
-# Return value when a difference is detected
-EX_DIFF=20
-# Return value when a test is skipped
-EX_SKIP=77
-
-function sort_output() {
-    sort -o "$OUT" "$OUT"
-}
-
-function diff_output() {
-    local GOLD="$TESTS/$TEST.out"
-
-    if ((UPDATE)); then
-        cp "$OUT" "$GOLD"
-    else
-        $DIFF -u "$GOLD" "$OUT" >&2
-    fi
-}
-
-function bfs_diff() (
-    bfs_verbose "$@"
-
-    # Close the dup()'d stdout to make sure we have enough fd's for the process
-    # substitution, even with low ulimit -n
-    exec 3>&-
-
-    "${BFS[@]}" "$@" | sort >"$OUT"
-    local status="${PIPESTATUS[0]}"
-
-    diff_output || exit $EX_DIFF
-    return "$status"
-)
-
-function skip() {
-    if ((VERBOSE_SKIPPED)); then
-        caller | {
-            read -r line file
-            cprintf "${BOL}${CYN}%s skipped!${RST} (%s)\n" "$TEST" "$(awk "NR == $line" "$file")"
-        }
-    elif ((VERBOSE_TESTS)); then
-        cprintf "${BOL}${CYN}%s skipped!${RST}\n" "$TEST"
-    fi
-
-    exit $EX_SKIP
-}
-
-function closefrom() {
-    if [ -d /proc/self/fd ]; then
-        local fds=/proc/self/fd
-    else
-        local fds=/dev/fd
-    fi
-
-    for fd in "$fds"/*; do
-        if [ ! -e "$fd" ]; then
-            continue
-        fi
-
-        local fd="${fd##*/}"
-        if ((fd >= $1)); then
-            eval "exec ${fd}<&-"
-        fi
-    done
-}
-
-function inum() {
-    ls -id "$@" | awk '{ print $1 }'
-}
-
-function set_acl() {
-    case "$UNAME" in
-        Darwin)
-            chmod +a "$(id -un) allow read,write" "$1"
-            ;;
-        FreeBSD)
-            if (($(getconf ACL_NFS4 "$1") > 0)); then
-                setfacl -m "u:$(id -un):rw::allow" "$1"
-            else
-                setfacl -m "u:$(id -un):rw" "$1"
-            fi
-            ;;
-        *)
-            setfacl -m "u:$(id -un):rw" "$1"
-            ;;
-    esac
-}
-
-function make_xattrs() {
-    clean_scratch
-
-    "$XTOUCH" scratch/{normal,xattr,xattr_2}
-    ln -s xattr scratch/link
-    ln -s normal scratch/xattr_link
-
-    case "$UNAME" in
-        Darwin)
-            xattr -w bfs_test true scratch/xattr \
-                && xattr -w bfs_test_2 true scratch/xattr_2 \
-                && xattr -s -w bfs_test true scratch/xattr_link
-            ;;
-        FreeBSD)
-            setextattr user bfs_test true scratch/xattr \
-                && setextattr user bfs_test_2 true scratch/xattr_2 \
-                && setextattr -h user bfs_test true scratch/xattr_link
-            ;;
-        *)
-            # Linux tmpfs doesn't support the user.* namespace, so we use the security.*
-            # namespace, which is writable by root and readable by others
-            bfs_sudo setfattr -n security.bfs_test scratch/xattr \
-                && bfs_sudo setfattr -n security.bfs_test_2 scratch/xattr_2 \
-                && bfs_sudo setfattr -h -n security.bfs_test scratch/xattr_link
-            ;;
-    esac
-}
-
-cd "$TMP"
-set +e
-
-BOL='\n'
-EOL='\n'
-
-function update_eol() {
-    # Bash gets $COLUMNS from stderr, so if it's redirected use tput instead
-    local cols="${COLUMNS-}"
-    if [ -z "$cols" ]; then
-        cols=$(tput cols)
-    fi
-
-    # Put the cursor at the last column, then write a space so the next
-    # character will wrap
-    EOL="\\033[${cols}G "
-}
-
-if ((VERBOSE_TESTS)); then
-    BOL=''
-elif ((COLOR_STDOUT)); then
-    BOL='\r\033[K'
-
-    # Workaround for bash 4: checkwinsize is off by default.  We can turn it on,
-    # but we also have to explicitly trigger a foreground job to finish so that
-    # it will update the window size before we use $COLUMNS
-    shopt -s checkwinsize
-    (:)
-
-    update_eol
-    trap update_eol WINCH
-fi
-
-function callers() {
-    local frame=0
-    while caller $frame; do
-        ((++frame))
-    done
-}
-
-function debug_err() {
-    local ret=$? line func file
-    callers | while read -r line func file; do
-        if [ "$func" = source ]; then
-            local cmd="$(awk "NR == $line" "$file" 2>/dev/null)" || :
-            report_err "$file" $line $ret "$cmd"
-            break
-        fi
-    done
-}
-
-function run_test() (
-    set -eE
-    trap debug_err ERR
-    source "$@"
-)
-
-passed=0
-failed=0
-skipped=0
-
-if ((COLOR_STDOUT || VERBOSE_TESTS)); then
-    TEST_FMT="${BOL}${YLW}%s${RST}${EOL}"
-else
-    TEST_FMT="."
-fi
-
-for TEST in "${TEST_CASES[@]}"; do
-    printf "$TEST_FMT" "$TEST"
-
-    OUT="$TMP/$TEST.out"
-    mkdir -p "${OUT%/*}"
-
-    if ((VERBOSE_ERRORS)); then
-        run_test "$TESTS/$TEST.sh"
-    else
-        run_test "$TESTS/$TEST.sh" 2>"$TMP/$TEST.err"
-    fi
-    status=$?
-
-    if ((status == 0)); then
-        ((++passed))
-    elif ((status == EX_SKIP)); then
-        ((++skipped))
-    else
-        ((++failed))
-        ((VERBOSE_ERRORS)) || cat "$TMP/$TEST.err" >&2
-        cprintf "${BOL}${RED}%s failed!${RST}\n" "$TEST"
-        ((STOP)) && break
-    fi
-done
-
-printf "${BOL}"
-
-if ((passed > 0)); then
-    cprintf "${GRN}tests passed: %d${RST}\n" "$passed"
-fi
-if ((skipped > 0)); then
-    cprintf "${CYN}tests skipped: %s${RST}\n" "$skipped"
-fi
-if ((failed > 0)); then
-    cprintf "${RED}tests failed: %s${RST}\n" "$failed"
-    exit 1
-fi
+TESTS="$(dirname -- "${BASH_SOURCE[0]}")"
+. "$TESTS/util.sh"
+. "$TESTS/color.sh"
+. "$TESTS/stddirs.sh"
+. "$TESTS/getopts.sh"
+. "$TESTS/run.sh"
+
+stdenv
+drop_root "$@"
+parse_args "$@"
+make_stddirs
+run_tests