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Theme report test from Ayman Bagabas.

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Nicholas Marriott
2026-07-08 09:22:32 +01:00
parent c8f6b54da7
commit e601bfb362
1 changed files with 57 additions and 0 deletions
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regress/theme-report.sh Executable file
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#!/bin/sh
# Test that the theme reported to a pane (mode 2031 / DSR 996) follows the
# terminal's reported theme, not a guess from the background colour.
#
# An inner client is attached inside an outer tmux pane. The outer pane has a
# light background, so the outer server answers the inner client's DSR 996 with
# light. The inner server is given a dark window background, so a guess from the
# background colour would say dark. A pane in the inner server then queries DSR
# 996: the answer must be light (2), following the client's reported theme, not
# dark (1) from the background.
PATH=/bin:/usr/bin
TERM=screen
[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
INNER="$TEST_TMUX -LtestI$$ -f/dev/null"
OUTER="$TEST_TMUX -LtestO$$ -f/dev/null"
$INNER kill-server 2>/dev/null
$OUTER kill-server 2>/dev/null
TMP=$(mktemp)
trap "rm -f $TMP; $INNER kill-server 2>/dev/null; $OUTER kill-server 2>/dev/null" \
0 1 15
# Inner server, dark background, keep panes alive across the query respawn.
$INNER new-session -d -x80 -y24 || exit 1
$INNER set -g remain-on-exit on
$INNER set -g window-style 'bg=black'
# Outer server with a light background, running the inner client attached so the
# inner client has a real terminal that reports a theme.
$OUTER new-session -d -x80 -y24 || exit 1
$OUTER set -g window-style 'bg=white'
$OUTER new-window "$INNER attach" || exit 1
sleep 2
# Query DSR 996 from an inner pane and capture the CSI ? 997 ; Ps n reply.
$INNER respawnw -k -t:0 -- sh -c "
exec 2>/dev/null
stty raw -echo
printf '\033[?996n'
dd bs=1 count=9 2>/dev/null | cat -v > $TMP
sleep 1
"
sleep 2
actual=$(cat "$TMP")
expected='^[[?997;2n' # 2 = light (from the terminal), not 1 = dark (from bg)
if [ "$actual" = "$expected" ]; then
[ -n "$VERBOSE" ] && echo "[PASS] reported terminal theme ($actual)"
exit 0
fi
echo "[FAIL] expected '$expected' (light, from terminal), got '$actual'"
exit 1