Image regress tests.

regress/image-selection-noflash.sh

@@ -0,0 +1,41 @@
+#!/bin/sh
+
+# Moving a copy-mode selection cursor must not retransmit unchanged images.
+
+. ./image-noflash-common.inc
+
+# The image, at the top of the pane, followed by enough plain lines that the
+# cursor can move down through it and past it without the view needing to
+# scroll.
+$TMUX new-session -d -s inner -x 40 -y 20 \
+    "printf '$SIXEL_HEADER'; for i in \$(seq 1 15); do echo line\$i; done; exec sh" ||
+	exit 1
+sleep 0.5
+
+image_check_support $TMUX
+$TMUX set -as terminal-features ',*:sixel' || exit 1
+
+start_capture 40 20
+assert_image_reached
+: >$TMP
+
+# Enter copy-mode, scroll to the top (where the image is) and select down
+# through it one cursor step at a time - the view does not need to scroll
+# for any of this, since the image is already at the top of what is
+# visible.
+$TMUX copy-mode -t inner || fail "copy-mode failed"
+$TMUX send-keys -X history-top || fail "history-top failed"
+sleep 0.2
+: >$TMP
+$TMUX send-keys -X begin-selection || fail "begin-selection failed"
+i=0
+while [ $i -lt 6 ]; do
+	$TMUX send-keys -X cursor-down || fail "cursor-down failed"
+	sleep 0.15
+	i=$((i + 1))
+done
+sleep 0.5
+
+assert_no_retransmit "while just moving the selection cursor"
+
+exit 0