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# (C) Copyright 2005-2023 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in LICENSE.txt and may be redistributed only under
# the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!
import unittest
from traits.api import Bool, observe
from pyface.application_window import ApplicationWindow
from pyface.toolkit import toolkit_object
from ..tasks_application import TasksApplication
GuiTestAssistant = toolkit_object("util.gui_test_assistant:GuiTestAssistant")
no_gui_test_assistant = GuiTestAssistant.__name__ == "Unimplemented"
EVENTS = [
"starting",
"started",
"application_initialized",
"stopping",
"stopped",
]
class TestingApp(TasksApplication):
#: Whether the app should start cleanly.
start_cleanly = Bool(True)
#: Whether the app should stop cleanly.
stop_cleanly = Bool(True)
#: Whether to try invoking exit method.
do_exit = Bool(False)
#: Whether the exit should be invoked as an error exit.
error_exit = Bool(False)
#: Whether to try force the exit (ie. ignore vetoes).
force_exit = Bool(False)
#: Whether to veto a call to the exit method.
veto_exit = Bool(False)
#: Whether to veto a closing a window.
veto_close = Bool(False)
#: Whether or not a call to the exit method was vetoed.
exit_vetoed = Bool(False)
#: Whether exit preparation happened.
exit_prepared = Bool(False)
#: Whether exit preparation raises an error.
exit_prepared_error = Bool(False)
def start(self):
if not self.start_cleanly:
return False
super().start()
window = self.windows[0]
window.observe(self._on_window_closing, "closing")
return True
def stop(self):
super().stop()
return self.stop_cleanly
def _on_window_closing(self, event):
window = event.new
if self.veto_close_window and not self.exit_vetoed:
window.veto = True
self.exit_vetoed = True
@observe('exiting')
def _set_veto_on_exiting_event(self, event):
vetoable_event = event.new
vetoable_event.veto = self.veto_exit
self.exit_vetoed = self.veto_exit
def _prepare_exit(self):
if not self.exit_vetoed:
self.exit_prepared = True
if self.exit_prepared_error:
raise Exception("Exit preparation failed")
super()._prepare_exit()
@unittest.skipIf(no_gui_test_assistant, "No GuiTestAssistant")
class TestApplication(unittest.TestCase, GuiTestAssistant):
def setUp(self):
GuiTestAssistant.setUp(self)
self.application_events = []
if toolkit_object.toolkit == "wx":
import wx
self.event_loop()
wx.GetApp().DeletePendingEvents()
else:
self.event_loop()
def tearDown(self):
GuiTestAssistant.tearDown(self)
def event_listener(self, event):
application_event = event.new
self.application_events.append(application_event)
def connect_listeners(self, app):
for event in EVENTS:
app.observe(self.event_listener, event)
def test_defaults(self):
from traits.etsconfig.api import ETSConfig
app = TasksApplication()
self.assertEqual(app.home, ETSConfig.application_home)
self.assertEqual(app.user_data, ETSConfig.user_data)
self.assertEqual(app.company, ETSConfig.company)
def test_lifecycle(self):
app = TasksApplication()
self.connect_listeners(app)
window = ApplicationWindow()
app.observe(lambda _: app.add_window(window), "started")
with self.assertMultiTraitChanges([app], EVENTS, []):
self.gui.invoke_after(1000, app.exit)
result = app.run()
self.assertTrue(result)
event_order = [event.event_type for event in self.application_events]
self.assertEqual(event_order, EVENTS)
self.assertEqual(app.windows, [])
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