Files
tmux/regress/input-reflow-stress.sh
Nicholas Marriott ec31f4566d Tweak test.
2026-07-09 09:39:44 +01:00

495 lines
10 KiB
Bash

#!/bin/sh
PATH=/bin:/usr/bin
TERM=screen
LANG=C.UTF-8
LC_ALL=C.UTF-8
export PATH TERM LANG LC_ALL
[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
TMUX="$TEST_TMUX -LtestA$$ -f/dev/null"
TMUX2="$TEST_TMUX -LtestB$$ -f/dev/null"
TMP=$(mktemp "${TMPDIR:-/tmp}/input-reflow-stress.XXXXXX") || exit 1
EXP=$(mktemp "${TMPDIR:-/tmp}/input-reflow-stress.XXXXXX") || exit 1
exit_status=0
WIDTHS="80 40 20 10 7 5 4 3 2 1 2 3 4 5 7 10 20 40 80"
LIVE_WIDTHS="68 24 80"
HEIGHT=24
HISTORY_LIMIT=220
HISTORY_BOUND=12000
JOINED_BOUND=500000
RAW_BOUND=5000000
COPY_BOUND=20000
LIVE_BOUND=50000
cleanup()
{
rm -f "$TMP" "$EXP"
$TMUX kill-server 2>/dev/null
$TMUX2 kill-server 2>/dev/null
}
trap cleanup 0 1 15
record_fail()
{
echo "FAIL: $1" >&2
exit_status=1
}
u8()
{
printf "$1"
}
wide_a()
{
u8 '\0343\0201\0202'
}
wide_b()
{
u8 '\0347\0225\0214'
}
combining_acute()
{
u8 '\0314\0201'
}
zero_width_space()
{
u8 '\0342\0200\0213'
}
zero_width_joiner()
{
u8 '\0342\0200\0215'
}
replacement()
{
u8 '\0357\0277\0275'
}
assert_alive()
{
$TMUX display-message -p -t stress: alive >/dev/null 2>&1 ||
record_fail "server exited after $1"
}
make_orphan_payload()
{
tag=$1
printf 'OP%s-01|ECH-half|left' "$tag"
wide_b
printf 'right'
printf '\033[6D\033[1X\n'
printf 'OP%s-02|EL-inside|left' "$tag"
wide_b
printf 'right'
printf '\033[6D\033[K\n'
printf 'OP%s-03|overwrite-leading|left' "$tag"
wide_b
printf 'right'
printf '\rOP%s-03|overwrite-leading|left!\n' "$tag"
printf 'OP%s-04|right-edge|' "$tag"
i=0
while [ "$i" -lt 60 ]; do
printf '.'
i=$((i + 1))
done
wide_b
printf 'Z'
printf '\033[2D\033[1X\n'
printf 'OP%s-05|ERASED|left' "$tag"
wide_b
printf 'right\r\033[2KOP%s-05|ERASED|left clear\n' "$tag"
printf 'SENT-%s|ORPHAN-PHASE|complete\n' "$tag"
}
make_payload()
{
i=0
while [ "$i" -lt 16 ]; do
printf 'ASCII%02d|abcdefghijklmnopqrstuvwxyz\n' "$i"
printf 'WIDE%02d|' "$i"
wide_a
printf '|'
wide_b
printf '|tail\n'
printf 'COMB%02d|e' "$i"
combining_acute
printf '|zero'
zero_width_space
zero_width_joiner
printf '|done\n'
printf 'STYLE%02d|\033[1;31mred\033[0m|\033[4munder\033[0m\n' \
"$i"
printf 'LINK%02d|\033]8;;https://example.invalid/%d\007link%d\033]8;;\007|end\n' \
"$i" "$i" "$i"
printf 'WRAP%02d|%064d\n' "$i" "$i"
printf 'CRBS%02d|abcdef\rCRBS%02d|XYZ\n' "$i" "$i"
printf 'BS%02d|abc\bZ\n' "$i"
i=$((i + 1))
done
i=0
while [ "$i" -lt 6 ]; do
printf 'L%04d|stable|abcdefghijklmnopqrstuvwxyz\n' "$i"
i=$((i + 1))
done
printf 'SENT-A|SURVIVES|plain logical line\n'
printf 'SENT-B|SURVIVES|wide-free after erases\n'
make_orphan_payload PRE
printf 'SENT-C|SURVIVES|tail logical line\n'
}
make_alternate_payload()
{
printf '\033[?1049h'
printf 'ALT-SENT|alternate screen|'
wide_a
printf '\nALT-SENT|resize target\n'
}
exit_alternate_payload()
{
printf '\033[?1049l'
}
load_and_paste()
{
buffer=$1
shift
"$@" >"$EXP"
$TMUX load-buffer -b "$buffer" "$EXP" || exit 1
$TMUX paste-buffer -d -b "$buffer" -t stress:0.0 || exit 1
sleep 0.3
}
capture_joined()
{
$TMUX capture-pane -pNJ -t stress: -S -5000 -E - >"$TMP"
}
assert_joined_sane()
{
label=$1
capture_joined || {
record_fail "joined capture failed after $label"
return
}
bytes=$(wc -c <"$TMP")
if [ "$bytes" -gt "$JOINED_BOUND" ]; then
record_fail "joined capture too large after $label: $bytes"
fi
if grep -q "$(replacement)" "$TMP"; then
record_fail "replacement character in joined capture after $label"
fi
out=$(
awk -v label="$label" '
{
line = $0
seen_on_line = 0
while (match(line, /L[0-9][0-9][0-9][0-9]\|/)) {
id = substr(line, RSTART + 1, 4) + 0
seen_on_line++
seen[id]++
ids[++count] = id
found = 1
last = id
line = substr(line, RSTART + RLENGTH)
}
if (seen_on_line > 1)
printf("fused IDs after %s: %s\n", label, $0)
}
END {
if (!found) {
printf("no line IDs after %s\n", label)
exit
}
for (i = 2; i <= count; i++) {
if (ids[i] < ids[i - 1])
drops++
}
if (drops > 1)
printf("IDs out of order after %s\n", label)
for (id in seen) {
if (seen[id] > 2)
printf("duplicate ID after %s: L%04d\n", label, id)
}
}' "$TMP"
)
[ -z "$out" ] || record_fail "$out"
for marker in \
'SENT-A|SURVIVES|plain logical line' \
'SENT-B|SURVIVES|wide-free after erases' \
'SENT-C|SURVIVES|tail logical line'
do
grep -F "$marker" "$TMP" >/dev/null 2>&1 ||
record_fail "missing sentinel after $label: $marker"
done
if grep '^OP.*-05|ERASED|.*' "$TMP" | grep -q "$(wide_b)"; then
record_fail "erased wide character visible after $label"
fi
}
assert_final_logical_text()
{
label=$1
capture_joined || {
record_fail "joined capture failed after $label"
return
}
for marker in \
'SENT-A|SURVIVES|plain logical line' \
'SENT-B|SURVIVES|wide-free after erases' \
'SENT-C|SURVIVES|tail logical line' \
'OPPRE-03|overwrite-leading|left!' \
'OPPOST-03|overwrite-leading|left!' \
'SENT-POST|ORPHAN-PHASE|complete'
do
grep -F "$marker" "$TMP" >/dev/null 2>&1 ||
record_fail "missing expected logical text after $label: $marker"
done
}
assert_raw_sane()
{
label=$1
$TMUX capture-pane -pR -t stress: >"$TMP" ||
record_fail "raw capture failed after $label"
bytes=$(wc -c <"$TMP")
if [ "$bytes" -gt "$RAW_BOUND" ]; then
record_fail "raw capture too large after $label: $bytes"
fi
width=$($TMUX display-message -p -t stress: '#{pane_width}' 2>/dev/null)
case "$width" in
''|*[!0-9]*) width=0 ;;
esac
out=$(
awk -v label="$label" -v width="$width" '
{
sub(/^[ ]+/, "")
if ($1 != "C")
next
coord = $2
sub(/^[0-9]*,/, "", coord)
sub(/[^0-9].*$/, "", coord)
col = coord + 0
if (width > 0 && (col < 0 || col >= width))
printf("cell column outside width after %s: width %d: %s\n", label, width, $0)
data = $0
if (data !~ /data=\(/) {
printf("cell without data after %s: %s\n", label, $0)
next
}
sub(/^.*data=\(/, "", data)
split(data, parts, ",")
cell_width = parts[1] + 0
padding = ($0 ~ /flags=[^ ]*PADDING/)
if (!padding && cell_width == 0)
printf("visible zero-width cell after %s: %s\n", label, $0)
}' "$TMP"
)
[ -z "$out" ] || record_fail "$out"
}
assert_history_sane()
{
label=$1
size=$($TMUX display-message -p -t stress: '#{history_size}' 2>/dev/null)
case "$size" in
''|*[!0-9]*)
record_fail "bad history size after $label: $size"
;;
*)
if [ "$size" -gt "$HISTORY_BOUND" ]; then
record_fail "history too large after $label: $size"
fi
;;
esac
}
assert_copy_mode_sane()
{
label=$1
$TMUX capture-pane -pM -S -5000 -E - -t stress: >"$TMP" ||
record_fail "copy-mode capture failed after $label"
bytes=$(wc -c <"$TMP")
if [ "$bytes" -gt "$COPY_BOUND" ]; then
record_fail "copy-mode capture too large after $label: $bytes"
fi
if grep -q "$(replacement)" "$TMP"; then
record_fail "replacement character in copy-mode after $label"
fi
if ! grep -Eq 'L[0-9][0-9][0-9][0-9]\|' "$TMP"; then
record_fail "no line ID in copy-mode after $label"
fi
}
run_resize_checks()
{
for width in $WIDTHS; do
$TMUX resize-window -t stress: -x "$width" -y "$HEIGHT" || exit 1
sleep 0.1
assert_alive "resize to $width"
assert_joined_sane "resize to $width"
assert_raw_sane "resize to $width"
assert_history_sane "resize to $width"
done
}
wait_outer_contains()
{
marker=$1
i=0
while [ "$i" -lt 50 ]; do
$TMUX2 capture-pane -p -t out:0 >"$TMP" 2>/dev/null &&
grep -F "$marker" "$TMP" >/dev/null 2>&1 &&
return 0
sleep 0.2
i=$((i + 1))
done
return 1
}
assert_live_client_redraw()
{
$TMUX set-option -t stress: status on >/dev/null || exit 1
$TMUX set-option -t stress: status-interval 1 >/dev/null || exit 1
$TMUX2 kill-server 2>/dev/null
$TMUX2 new-session -d -s out -x 100 -y 12 "$TMUX attach -t stress" ||
exit 1
i=0
while [ "$i" -lt 50 ]; do
clients=$($TMUX list-clients -F x 2>/dev/null | grep -c x)
[ "$clients" -ge 1 ] && break
sleep 0.2
i=$((i + 1))
done
[ "$i" -lt 50 ] || {
record_fail "nested client did not attach"
return
}
for width in $LIVE_WIDTHS; do
$TMUX set-option -t stress: status-left "REDRAW-$width " >/dev/null ||
exit 1
$TMUX2 resize-window -t out: -x "$width" -y 12 || exit 1
sleep 0.2
done
wait_outer_contains 'REDRAW-80' ||
record_fail "outer capture missing final redraw marker"
$TMUX2 capture-pane -p -t out:0 >"$TMP" 2>/dev/null ||
record_fail "outer capture failed"
bytes=$(wc -c <"$TMP")
if [ "$bytes" -gt "$LIVE_BOUND" ]; then
record_fail "outer capture too large: $bytes"
fi
if grep -q "$(replacement)" "$TMP"; then
record_fail "replacement character in outer capture"
fi
grep -F 'SENT-POST|ORPHAN-PHASE|complete' "$TMP" >/dev/null 2>&1 ||
record_fail "outer capture missing expected sentinel"
grep -F 'REDRAW-24' "$TMP" >/dev/null 2>&1 &&
record_fail "outer capture contains stale width marker"
$TMUX2 kill-server 2>/dev/null
$TMUX set-option -t stress: status off >/dev/null || exit 1
}
$TMUX kill-server 2>/dev/null
$TMUX2 kill-server 2>/dev/null
sleep 0.1
$TMUX new-session -d -x 1 -y 1 -s test-setup "sleep 2" || exit 1
$TMUX set-option -g history-limit "$HISTORY_LIMIT" || exit 1
$TMUX new-session -d -x 80 -y "$HEIGHT" -s stress 'stty -echo; exec cat' || exit 1
$TMUX kill-session -t test-setup || exit 1
sleep 0.3
load_and_paste stress-data make_payload
assert_joined_sane "initial payload"
assert_raw_sane "initial payload"
assert_history_sane "initial payload"
$TMUX resize-window -t stress: -x 40 -y "$HEIGHT" || exit 1
sleep 0.1
load_and_paste stress-orphan-post make_orphan_payload POST
assert_joined_sane "post-resize orphan payload"
assert_raw_sane "post-resize orphan payload"
run_resize_checks
assert_final_logical_text "return to original width"
$TMUX copy-mode -H -t stress: || exit 1
$TMUX send-keys -t stress: -X history-top
sleep 0.1
assert_alive "copy-mode"
assert_copy_mode_sane "copy-mode history-top"
$TMUX send-keys -t stress: -X cancel
sleep 0.1
assert_live_client_redraw
load_and_paste stress-alt make_alternate_payload
for width in 30 12 80; do
$TMUX resize-window -t stress: -x "$width" -y "$HEIGHT" || exit 1
sleep 0.1
assert_alive "alternate resize to $width"
assert_raw_sane "alternate resize to $width"
done
load_and_paste stress-alt-exit exit_alternate_payload
sleep 0.3
assert_alive "alternate screen exit"
assert_joined_sane "alternate screen exit"
assert_raw_sane "alternate screen exit"
assert_final_logical_text "alternate screen exit"
cleanup
exit $exit_status