Side status line regress tests.

regress/side-status-refresh.sh

@@ -0,0 +1,78 @@
+#!/bin/sh
+
+# The side status line must refresh every status-interval seconds on its own,
+# whether or not the horizontal status line is on, and whether it was on when
+# the client attached or turned on afterwards. The client status timer drives
+# both lines, so this checks it is armed in both cases with status off.
+#
+# The side status line is rendered by an inner tmux attached inside an outer
+# tmux pane. Its format is a #() command which appends a byte to a file each
+# time it runs, and a #() command is run again only when the format is
+# expanded in a later second, so the file grows once per refresh. Nothing in
+# the test asks for a redraw between the two counts, so growth means the
+# timer refreshed the side status line by itself.
+
+PATH=/bin:/usr/bin
+TERM=screen
+LC_ALL=C.UTF-8
+export 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"
+
+COUNT1=$(mktemp)
+COUNT2=$(mktemp)
+trap "rm -f $COUNT1 $COUNT2; $TMUX kill-server 2>/dev/null; \
+	$TMUX2 kill-server 2>/dev/null" 0 1 15
+
+fail() {
+	echo "$*" >&2
+	exit 1
+}
+
+count() {
+	wc -c <"$1" | tr -d ' '
+}
+
+# Attach the inner server in an outer pane, then wait for the first draw.
+attach() {
+	$TMUX new -d -x30 -y8 "$TMUX2 attach" || exit 1
+	sleep 1
+}
+
+# Check the side status line refreshed at least twice in three seconds.
+refreshes() {
+	before=$(count "$1")
+	sleep 3
+	after=$(count "$1")
+	[ $((after - before)) -ge 2 ] ||
+	    fail "$2: side status ran $before then $after times, did not refresh"
+}
+
+$TMUX kill-server 2>/dev/null
+$TMUX2 kill-server 2>/dev/null
+
+# Side status on before the client attaches, with status off.
+$TMUX2 new -d -x30 -y8 "sh -c 'exec sleep 100'" || exit 1
+$TMUX2 set -g status off || exit 1
+$TMUX2 set -g status-interval 1 || exit 1
+$TMUX2 set -g side-status left || exit 1
+$TMUX2 set -g side-status-format "#(printf x >>$COUNT1)" || exit 1
+attach
+refreshes "$COUNT1" "on at attach"
+
+# Side status turned on after the client attached, with status off. A new
+# inner server so the client timer starts from nothing.
+$TMUX2 kill-server || exit 1
+sleep 1
+$TMUX2 new -d -x30 -y8 "sh -c 'exec sleep 100'" || exit 1
+$TMUX2 set -g status off || exit 1
+$TMUX2 set -g status-interval 1 || exit 1
+$TMUX2 set -g side-status-format "#(printf x >>$COUNT2)" || exit 1
+attach
+$TMUX2 set -g side-status left || exit 1
+sleep 1
+refreshes "$COUNT2" "on after attach"
+
+exit 0