glib/gio/tests/memory-monitor-dbus.py.in
Simon McVittie fdbd9ed7f7 tests: Skip MemoryMonitor test if GObject-Introspection is too old
Distributions will likely want to update GLib before
GObject-Introspection, to avoid circular dependencies.

Signed-off-by: Simon McVittie <smcv@debian.org>
2020-02-28 12:42:36 +00:00

103 lines
3.4 KiB
Python
Executable File

#!/usr/bin/python3
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 3 of the License, or (at your option) any
# later version. See http://www.gnu.org/copyleft/lgpl.html for the full text
# of the license.
__author__ = 'Bastien Nocera'
__email__ = 'hadess@hadess.net'
__copyright__ = '(c) 2019 Red Hat Inc.'
__license__ = 'LGPL 3+'
import unittest
import sys
import subprocess
import dbus
import dbus.mainloop.glib
import dbusmock
import fcntl
import os
import time
from gi.repository import GLib
from gi.repository import Gio
dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
# XDG_DESKTOP_PORTAL_PATH = os.path.expanduser("~/.cache/jhbuild/build/xdg-desktop-portal/xdg-desktop-portal")
XDG_DESKTOP_PORTAL_PATH = "@libexecdir@/xdg-desktop-portal"
class TestLowMemoryMonitor(dbusmock.DBusTestCase):
'''Test GMemoryMonitorDBus'''
@classmethod
def setUpClass(klass):
klass.start_system_bus()
klass.dbus_con = klass.get_dbus(True)
def setUp(self):
try:
Gio.MemoryMonitor
except AttributeError:
raise unittest.SkipTest('Low memory monitor not in '
'introspection data. Requires '
'GObject-Introspection ≥ 1.63.2')
try:
(self.p_mock, self.obj_lmm) = self.spawn_server_template(
'low_memory_monitor', {}, stdout=subprocess.PIPE)
except ModuleNotFoundError:
raise unittest.SkipTest("Low memory monitor dbusmock template not "
"found. Requires dbusmock ≥ 0.18.4.")
# set log to nonblocking
flags = fcntl.fcntl(self.p_mock.stdout, fcntl.F_GETFL)
fcntl.fcntl(self.p_mock.stdout, fcntl.F_SETFL, flags | os.O_NONBLOCK)
self.last_warning = -1
self.dbusmock = dbus.Interface(self.obj_lmm, dbusmock.MOCK_IFACE)
self.memory_monitor = Gio.MemoryMonitor.dup_default()
self.memory_monitor.connect("low-memory-warning", self.memory_warning_cb)
self.mainloop = GLib.MainLoop()
self.main_context = self.mainloop.get_context()
def tearDown(self):
self.p_mock.terminate()
self.p_mock.wait()
def memory_warning_cb(self, monitor, level):
self.last_warning = level
self.main_context.wakeup()
def test_low_memory_warning_signal(self):
'''LowMemoryWarning signal'''
# Wait 2 seconds
timeout = 2
while timeout > 0:
time.sleep(0.5)
timeout -= 0.5
self.main_context.iteration(False)
self.dbusmock.EmitWarning(100)
# Wait 2 seconds or until warning
timeout = 2
while timeout > 0 and self.last_warning != 100:
time.sleep(0.5)
timeout -= 0.5
self.main_context.iteration(False)
self.assertEqual(self.last_warning, 100)
self.dbusmock.EmitWarning(255)
# Wait 2 seconds or until warning
timeout = 2
while timeout > 0 and self.last_warning != 255:
time.sleep(0.5)
timeout -= 0.5
self.main_context.iteration(False)
self.assertEqual(self.last_warning, 255)
if __name__ == '__main__':
# avoid writing to stderr
unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout, verbosity=2))