More tests.

regress/tty-clamp.sh

@@ -0,0 +1,100 @@
+#!/bin/sh
+
+# A client narrower than the window must clamp pane output to its visible
+# part, including a pane cut off at both sides after panning. Each inner
+# client runs in an outer pane of its size.
+
+PATH=/bin:/usr/bin
+TERM=screen
+LC_ALL=C.UTF-8
+export PATH TERM LC_ALL
+
+[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
+TMUX="$TEST_TMUX -LtestA$$ -f/dev/null"
+TMUX2="$TEST_TMUX -LtestB$$ -f/dev/null"
+
+DIR=$(mktemp -d) || exit 1
+TRIGGER=$DIR/trigger
+CAPTURE=$DIR/capture
+
+cleanup()
+{
+	$TMUX2 kill-server >/dev/null 2>&1
+	$TMUX kill-server >/dev/null 2>&1
+	rm -f "$TRIGGER" "$CAPTURE"
+	rmdir "$DIR"
+}
+trap cleanup 0 1 15
+
+fail()
+{
+	echo "$*" >&2
+	[ -s "$CAPTURE" ] && cat "$CAPTURE" >&2
+	exit 1
+}
+
+# Start the inner server with one pane running $1.
+start()
+{
+	$TMUX kill-server >/dev/null 2>&1
+	$TMUX2 kill-server >/dev/null 2>&1
+	rm -f "$TRIGGER"
+
+	$TMUX new-session -d -s inner -x 200 -y 50 "$1" || exit 1
+	$TMUX set -g status off || exit 1
+	$TMUX set -g automatic-rename off || exit 1
+	$TMUX set -g window-size largest || exit 1
+}
+attach()
+{
+	$TMUX2 new-session -d -s big -x "${1%x*}" -y "${1#*x}" 'sleep 100' ||
+	    exit 1
+	$TMUX2 set -g status off || exit 1
+	$TMUX2 set -g window-size manual || exit 1
+	$TMUX2 new-session -d -s small -x "${2%x*}" -y "${2#*x}" 'sleep 100' ||
+	    exit 1
+	$TMUX2 respawn-pane -k -t big:0.0 "$TMUX attach -t inner" || exit 1
+	sleep 0.5
+	$TMUX2 respawn-pane -k -t small:0.0 "$TMUX attach -t inner" || exit 1
+	sleep 1
+	$TMUX has-session 2>/dev/null || fail "server exited on attach"
+	SMALL=$($TMUX list-clients -F '#{client_width} #{client_name}' |
+	    sort -n | head -n 1 | cut -d' ' -f2)
+}
+alive()
+{
+	$TMUX has-session 2>/dev/null || fail "server exited: $1"
+}
+
+# A clear below the cursor in a pane wider than the small client's view.
+start "sh -c 'while [ ! -e $TRIGGER ]; do sleep 0.1; done
+	printf \"\\033[J\"; exec sleep 100'"
+attach 167x49 40x12
+: >"$TRIGGER"
+sleep 1
+alive "clear in a pane wider than the client"
+
+# Output in the right pane of a split, cut off on the right.
+start 'sleep 100'
+$TMUX split-window -h -d "sh -c 'while [ ! -e $TRIGGER ]; do sleep 0.1; done
+	printf ab; exec sleep 100'" || exit 1
+attach 120x30 80x30
+: >"$TRIGGER"
+sleep 1
+alive "output in a pane cut off on the right"
+
+# A nonzero pane offset is clipped at both sides of a panned viewport.
+start 'sleep 100'
+$TMUX split-window -h -d -l 100 "sh -c 'while [ ! -e $TRIGGER ]; do sleep 0.1; done
+	printf \"%010d\" 0 | sed s/0/0123456789/g; exec sleep 100'" || exit 1
+attach 200x30 40x30
+$TMUX refresh-client -t "$SMALL" -R 120 || exit 1
+sleep 0.5
+: >"$TRIGGER"
+sleep 1
+alive "panned pane without side status"
+$TMUX2 capture-pane -p -t small:0.0 >"$CAPTURE" || exit 1
+row=$(head -n 1 "$CAPTURE")
+[ "$row" = 0123456789012345678901234567890123456789 ] ||
+    fail "panned row is '$row'"
+exit 0