def test_datetime_editor_simple(self):
view = get_date_time_simple_view(DatetimeEditor())
date_time = datetime.datetime(2000, 1, 2, 1, 2, 3)
instance = InstanceWithDatetime(date_time=date_time)
with reraise_exceptions(), \
self.launch_editor(instance, view):
pass
def test_datetime_editor_mutate_minimum_datetime_after_init(self):
# Test if the minimum_datetime on the editor is mutated after init,
# the values on the edited object and the view are synchronized.
editor_factory = DatetimeEditor(minimum_datetime=datetime.datetime(
2000, 1, 1), )
view = get_date_time_simple_view(editor_factory)
instance = InstanceWithDatetime()
with reraise_exceptions(), \
self.launch_editor(instance, view) as editor:
# This value is in-range
instance.date_time = datetime.datetime(2001, 1, 1)
# Now change the editor's minimum datetime such that the original
# value is out-of-range
new_minimum_datetime = datetime.datetime(2010, 1, 1)
editor.minimum_datetime = new_minimum_datetime
# does not seem needed to flush the event loop, but just in case.
process_cascade_events()
displayed_value = to_datetime(editor.control.dateTime())
self.assertEqual(instance.date_time, displayed_value)
self.assertEqual(displayed_value, new_minimum_datetime)
def test_datetime_editor_simple_with_minimum_datetime(self):
# Test the editor uses the minimum datetime as expected
minimum_datetime = datetime.datetime(2000, 1, 1)
editor_factory = DatetimeEditor(minimum_datetime=minimum_datetime, )
view = get_date_time_simple_view(editor_factory)
instance = InstanceWithDatetime()
with self.launch_editor(instance, view) as editor:
q_minimum_datetime = editor.control.minimumDateTime()
actual_minimum_datetime = to_datetime(q_minimum_datetime)
self.assertEqual(actual_minimum_datetime, minimum_datetime)
def test_datetime_editor_simple_with_maximum_datetime(self):
# Test the editor uses the maximum datetime as expected
maximum_datetime = datetime.datetime(2000, 1, 1)
editor_factory = DatetimeEditor(maximum_datetime=maximum_datetime, )
view = get_date_time_simple_view(editor_factory)
instance = InstanceWithDatetime()
with self.launch_editor(instance, view) as editor:
q_maximum_datetime = editor.control.maximumDateTime()
# does not seem needed to flush the event loop, but just in case.
self.gui.process_events()
actual_maximum_datetime = to_datetime(q_maximum_datetime)
self.assertEqual(actual_maximum_datetime, maximum_datetime)
def test_datetime_editor_simple_with_maximum_datetime_out_of_bound(self):
maximum_datetime = datetime.datetime(2000, 1, 1)
editor_factory = DatetimeEditor(maximum_datetime=maximum_datetime, )
view = get_date_time_simple_view(editor_factory)
instance = InstanceWithDatetime()
with self.launch_editor(instance, view) as editor:
# out-of-bound
instance.date_time = datetime.datetime(2020, 1, 1)
# does not seem needed to flush the event loop, but just in case.
self.gui.process_events()
displayed_value = to_datetime(editor.control.dateTime())
self.assertEqual(displayed_value, maximum_datetime)
self.assertEqual(instance.date_time, maximum_datetime)
def test_datetime_editor_simple_with_minimum_datetime_out_of_bound(self):
# Test when out-of-bound value is given, it is reset to the bounded
# value.
minimum_datetime = datetime.datetime(2000, 1, 1)
editor_factory = DatetimeEditor(minimum_datetime=minimum_datetime, )
view = get_date_time_simple_view(editor_factory)
instance = InstanceWithDatetime()
with reraise_exceptions(), \
self.launch_editor(instance, view) as editor:
instance.date_time = datetime.datetime(1980, 1, 1)
# does not seem needed to flush the event loop, but just in case.
process_cascade_events()
displayed_value = to_datetime(editor.control.dateTime())
self.assertEqual(displayed_value, minimum_datetime)
self.assertEqual(instance.date_time, minimum_datetime)
def test_datetime_editor_qt_datetime_out_of_bound(self):
# The maximum datetime supported by Qt is larger than the maximum
# datetime supported by Python
editor_factory = DatetimeEditor()
view = get_date_time_simple_view(editor_factory)
init_datetime = datetime.datetime(1900, 1, 1)
instance = InstanceWithDatetime(date_time=init_datetime)
with self.launch_editor(instance, view) as editor:
# the user set the datetime on the Qt widget to a value
# too large for Python
from pyface.qt.QtCore import QDateTime, QDate
q_datetime = QDateTime(QDate(datetime.MAXYEAR + 1, 1, 1))
editor.control.setDateTime(q_datetime)
# Get the displayed value back.
displayed_value = to_datetime(editor.control.dateTime())
self.assertEqual(instance.date_time, displayed_value)
def datetime_editor():
""" Factory function that returns an editor with date & time for
editing Datetime values.
"""
try:
from traitsui.api import DatetimeEditor
return DatetimeEditor()
except ImportError:
logger.warn(msg="Could not import DatetimeEditor from "
"traitsui.api, using TextEditor instead")
from traitsui.api import TextEditor
return TextEditor(evaluate=_datetime_str_to_datetime,
format_func=_datetime_to_datetime_str)
def test_datetime_editor_python_datetime_out_of_bound(self):
# The minimum datetime supported by Qt is larger than the minimum
# datetime supported by Python.
editor_factory = DatetimeEditor()
view = get_date_time_simple_view(editor_factory)
init_datetime = datetime.datetime(1900, 1, 1)
instance = InstanceWithDatetime(date_time=init_datetime)
with self.launch_editor(instance, view) as editor:
# This value is too early and is not supported by Qt
# But the editor should not crash
new_value = datetime.datetime(1, 1, 1)
instance.date_time = new_value
# does not seem needed to flush the event loop, but just in case.
self.gui.process_events()
displayed_value = to_datetime(editor.control.dateTime())
# The value has changed to a filled value
self.assertNotEqual(instance.date_time, new_value)
self.assertEqual(displayed_value, instance.date_time)
def test_datetime_editor_simple(self):
view = get_date_time_simple_view(DatetimeEditor())
instance = InstanceWithDatetime(date_time=datetime.datetime.now())
with self.launch_editor(instance, view):
pass
def datetime_editor():
""" Factory function that returns an editor with date & time for
editing Datetime values.
"""
from traitsui.api import DatetimeEditor
return DatetimeEditor()