binutils-gdb/gdb/testsuite/gdb.python/py-mi-events-gdb.py
Pedro Alves 5a069ab36d Prepare gdb.python/mi-py-events.exp for Python/MI in separate channels
Similarly to 5068630ad3
(gdb.python/py-events.exp and normal_stop observers ordering) [1],
this commit makes the gdb.python/py-mi-events.exp test not rely on
order in which MI and Python observers run, or even on where each
observer sends its output to.

This shows up as a problem when testing with MI running as a separate
terminal, for example, where Python event output and MI output go to
different channels, even.  But in any case, relying on the order in
which observers run is always going to be fragile.

The fix is to save the string output in the handlers in some variables
and then having MI print them explicitly, instead of printing them
directly from the Python events.

Tested on x86_64 Fedora 23.

https://sourceware.org/ml/gdb-patches/2015-07/msg00290.html

gdb/testsuite/ChangeLog:
2016-06-21  Pedro Alves  <palves@redhat.com>

	* gdb.python/py-mi-events-gdb.py (stop_handler_str)
	(cont_handler_str): New.
	(signal_stop_handler): Set stop_handler_str instead of printing to
	stdout.
	(continue_handler): Set cont_handler_str instead of printing to
	stdout.
	* gdb.python/py-mi-events.exp: Ues mi_execute_to instead of
	mi_send_resuming_command.  Print stop_handler_str and
	cont_handler_str instead of expecting the python events print
	directly.
2016-06-21 01:11:43 +01:00

52 lines
1.7 KiB
Python

# Copyright (C) 2016 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/>.
# This file is part of the GDB testsuite. It tests python printing
# to string from event handlers.
import gdb
stop_handler_str = ""
cont_handler_str = ""
def signal_stop_handler (event):
"""Stop event handler"""
assert (isinstance (event, gdb.StopEvent))
global stop_handler_str
stop_handler_str = "stop_handler\n"
stop_handler_str += gdb.execute("info break", False, True)
def continue_handler (event):
"""Continue event handler"""
assert (isinstance (event, gdb.ContinueEvent))
global cont_handler_str
cont_handler_str = "continue_handler\n"
cont_handler_str += gdb.execute("info break", False, True)
class test_events (gdb.Command):
"""Test events."""
def __init__ (self):
gdb.Command.__init__ (self, "test-events", gdb.COMMAND_STACK)
def invoke (self, arg, from_tty):
gdb.events.stop.connect (signal_stop_handler)
gdb.events.cont.connect (continue_handler)
print ("Event testers registered.")
test_events ()