binutils-gdb/gdb/testsuite/gdb.python/tui-window.exp
Tom Tromey d2d1ea20ae Fix crash when TUI window creation fails
If a TUI window is written in Python, and if the window construction
function fails, then gdb will crash.  This patch fixes the crash.

gdb/ChangeLog
2020-06-16  Tom Tromey  <tom@tromey.com>

	* python/py-tui.c (tui_py_window::~tui_py_window): Handle case
	where m_window==nullptr.

gdb/testsuite/ChangeLog
2020-06-16  Tom Tromey  <tom@tromey.com>

	* gdb.python/tui-window.py (failwin): New function.  Register it
	as a TUI window type.
	* gdb.python/tui-window.exp: Create new "fail" layout.  Test it.
2020-06-16 17:48:38 -06:00

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# Copyright (C) 2020 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/>.
# Test a TUI window implemented in Python.
load_lib gdb-python.exp
tuiterm_env
# This test doesn't care about the inferior.
standard_testfile py-arch.c
if {[build_executable "failed to prepare" ${testfile} ${srcfile}] == -1} {
return -1
}
Term::clean_restart 24 80 $testfile
# Skip all tests if Python scripting is not enabled.
if { [skip_python_tests] } { continue }
set remote_python_file [gdb_remote_download host \
${srcdir}/${subdir}/${testfile}.py]
gdb_test_no_output "source ${remote_python_file}" \
"source ${testfile}.py"
gdb_test_no_output "tui new-layout test test 1 status 0 cmd 1"
gdb_test_no_output "tui new-layout fail fail 1 status 0 cmd 1"
if {![Term::enter_tui]} {
unsupported "TUI not supported"
}
Term::command "layout test"
Term::check_contents "test title" \
"This Is The Title"
Term::check_contents "Window display" "Test: 0"
Term::resize 51 51
# Remember that a resize request actually does two resizes...
Term::check_contents "Window was updated" "Test: 2"
Term::command "layout fail"