--- /dev/null
+# Copyright 2023 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+tuiterm_env
+
+Term::clean_restart 24 80
+if {![Term::enter_tui]} {
+ unsupported "TUI not supported"
+ return
+}
+
+set status_win { 0 15 80 1 }
+set command_win { 0 16 80 8 }
+
+# Check that the status window doesn't show Singlekey.
+set re "No process In:"
+Term::check_region_contents "status window: initial" {*}$status_win $re
+
+# Enter single-key mode. Check that the status window does show Singlekey.
+send_gdb "\030s"
+set re "No process \\(SingleKey\\) In:"
+gdb_assert { [Term::wait_for_region_contents {*}$status_win $re] } \
+ "status window: single-key mode"
+
+# Send "down command".
+send_gdb "d"
+gdb_assert { [Term::wait_for_region_contents {*}$command_win "No stack\\."] } \
+ "down using single-key d"
+
+# Quit single-key mode.
+send_gdb "q"
+gdb_assert { [Term::wait_for ""] } "quit using single-key q"
+
+# Enter single-key mode, again.
+send_gdb "\030s"
+
+# Send string that doesn't start with a single-key.
+send_gdb "abc"
+set re "$gdb_prompt abc"
+gdb_assert { [Term::wait_for_region_contents {*}$command_win $re] } \
+ "temporary command prompt"
+
+# Enter undefined command abc, and back to single-key mode.
+send_gdb "\n"
+
+# Exit single-key mode, now using C-x s.
+send_gdb "\030s"
+gdb_assert { [Term::wait_for ""] } "quit using C-x s"