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import os
import threading
import unittest
from datetime import timedelta
from time import sleep
import pytest
from reactivex.internal.basic import default_now
from reactivex.scheduler.mainloop import GtkScheduler
gi = pytest.importorskip("gi")
from gi.repository import GLib, Gtk # isort: skip
gi.require_version("Gtk", "3.0")
# Removing GNOME_DESKTOP_SESSION_ID from environment
# prevents QtScheduler test from failing with message
# Gtk-ERROR **: GTK+ 2.x symbols detected.
# Using GTK+ 2.x and GTK+ 3 in the same process is not supported
if "GNOME_DESKTOP_SESSION_ID" in os.environ:
del os.environ["GNOME_DESKTOP_SESSION_ID"]
class TestGtkScheduler(unittest.TestCase):
def test_gtk_schedule_now(self):
scheduler = GtkScheduler(GLib)
diff = scheduler.now - default_now()
assert abs(diff) < timedelta(milliseconds=1)
def test_gtk_schedule_now_units(self):
scheduler = GtkScheduler(GLib)
diff = scheduler.now
sleep(0.1)
diff = scheduler.now - diff
assert timedelta(milliseconds=80) < diff < timedelta(milliseconds=180)
def test_gtk_schedule_action(self):
scheduler = GtkScheduler(GLib)
gate = threading.Semaphore(0)
ran = False
def action(scheduler, state):
nonlocal ran
ran = True
scheduler.schedule(action)
def done(data):
Gtk.main_quit()
gate.release()
return False
GLib.timeout_add(50, done, None)
Gtk.main()
gate.acquire()
assert ran is True
def test_gtk_schedule_action_relative(self):
scheduler = GtkScheduler(GLib)
gate = threading.Semaphore(0)
starttime = default_now()
endtime = None
def action(scheduler, state):
nonlocal endtime
endtime = default_now()
scheduler.schedule_relative(0.1, action)
def done(data):
Gtk.main_quit()
gate.release()
return False
GLib.timeout_add(200, done, None)
Gtk.main()
gate.acquire()
assert endtime is not None
diff = endtime - starttime
assert diff > timedelta(milliseconds=80)
def test_gtk_schedule_action_absolute(self):
scheduler = GtkScheduler(GLib)
gate = threading.Semaphore(0)
starttime = default_now()
endtime = None
def action(scheduler, state):
nonlocal endtime
endtime = default_now()
due = scheduler.now + timedelta(milliseconds=100)
scheduler.schedule_absolute(due, action)
def done(data):
Gtk.main_quit()
gate.release()
return False
GLib.timeout_add(200, done, None)
Gtk.main()
gate.acquire()
assert endtime is not None
diff = endtime - starttime
assert diff > timedelta(milliseconds=80)
def test_gtk_schedule_action_cancel(self):
ran = False
scheduler = GtkScheduler(GLib)
gate = threading.Semaphore(0)
def action(scheduler, state):
nonlocal ran
ran = True
d = scheduler.schedule_relative(0.1, action)
d.dispose()
def done(data):
Gtk.main_quit()
gate.release()
return False
GLib.timeout_add(200, done, None)
Gtk.main()
gate.acquire()
assert ran is False
def test_gtk_schedule_action_periodic(self):
scheduler = GtkScheduler(GLib)
gate = threading.Semaphore(0)
period = 0.05
counter = 3
def action(state):
nonlocal counter
if state:
counter -= 1
return state - 1
scheduler.schedule_periodic(period, action, counter)
def done(data):
Gtk.main_quit()
gate.release()
return False
GLib.timeout_add(300, done, None)
Gtk.main()
gate.acquire()
assert counter == 0
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