beremiz

Fix non-marking as manually forced floating point variable if the value isn't integer

2019-02-21, Andrey Skvortsov
69cef4e37ef9
Fix non-marking as manually forced floating point variable if the value isn't integer

For example, if user in debug variable panel set any floating point
variable to 34.3, then it's not shown as forced (blue color) and user
can't release this enforcement.

If user changes the value to 34.0, then enforcement shows
correctly. This is done because binary representation of floating point
numbers in IDE and runtime can be slightly different (double vs float)
and as a result values aren't equal.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# This file is part of Beremiz, a Integrated Development Environment for
# programming IEC 61131-3 automates supporting plcopen standard and CanFestival.
#
# Copyright (C) 2017: Andrey Skvortsov
#
# See COPYING file for copyrights details.
#
# 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 2
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
from __future__ import absolute_import
import os
import sys
# import pytest
# import xvfbwrapper
def init_environment():
"""Append module root directory to sys.path"""
try:
import Beremiz as _Beremiz
except ImportError:
sys.path.append(
os.path.abspath(
os.path.join(
os.path.dirname(__file__), '..', '..')
)
)
init_environment()
#
# Something seems to be broken in Beremiz application,
# because after tests in test_application.py during Xvfb shutdown
# pytest returns error message:
# pytest: Fatal IO error 11 (Die Ressource ist zur Zeit nicht verfügbar) on X server :2821.
#
# As a result of that pytest returns code 1 as some tests were failed,
# but they aren't.
#
# To avoid this Xvfb is launched and killed not by pytest.
# $ Xvfb :42 -screen 0 1280x1024x24 &
# $ export DISPLAY=:42
# $ pytest --timeout=10 ./tests/tools
# $ pkill -9 Xvfb
#
# TODO: find root of this problem.
# vdisplay = None
#
# @pytest.fixture(scope="session", autouse=True)
# def start_xvfb_server(request):
# global vdisplay
# vdisplay = xvfbwrapper.Xvfb(width=1280, height=720)
# vdisplay.start()
# request.addfinalizer(stop_xvfb_server)
#
# def stop_xvfb_server():
# if vdisplay is not None:
# vdisplay.stop()