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# (C) Copyright 2004-2023 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 contextlib
import datetime
import unittest
from traits.api import (
Date,
HasTraits,
TraitError,
Tuple,
)
from traitsui.api import DateRangeEditor, View, Item
from traitsui.tests._tools import (
BaseTestMixin,
create_ui,
requires_toolkit,
ToolkitName,
)
class Foo(HasTraits):
date_range = Tuple(Date(allow_none=True), Date(allow_none=True))
def default_custom_view():
"""Default view of DateRangeEditor"""
view = View(
Item(name="date_range", style="custom", editor=DateRangeEditor())
)
return view
def custom_view_allow_no_range():
"""DateRangeEditor with allow_no_selection set to True."""
view = View(
Item(
name="date_range",
style="custom",
editor=DateRangeEditor(allow_no_selection=True),
)
)
return view
class TestDateRangeEditorGeneric(BaseTestMixin, unittest.TestCase):
"""Tests that are not GUI backend specific."""
def setUp(self):
BaseTestMixin.setUp(self)
def tearDown(self):
BaseTestMixin.tearDown(self)
def test_date_range_multi_select_is_constant(self):
with self.assertRaises(TraitError):
DateRangeEditor(multi_select=False)
@requires_toolkit([ToolkitName.qt])
class TestDateRangeEditorQt(BaseTestMixin, unittest.TestCase):
def setUp(self):
BaseTestMixin.setUp(self)
def tearDown(self):
BaseTestMixin.tearDown(self)
def test_set_date_range_on_model(self):
# Test when the date range is set on the model
with self.launch_editor(default_custom_view) as (foo, editor):
foo.date_range = (
datetime.date(2010, 4, 3),
datetime.date(2010, 4, 5),
)
expected_selected = [
datetime.date(2010, 4, 3),
datetime.date(2010, 4, 4),
datetime.date(2010, 4, 5),
]
for date in expected_selected:
self.check_select_status(
editor=editor, date=date, selected=True
)
# Outside of the range
self.check_select_status(
editor=editor, date=datetime.date(2010, 4, 2), selected=False
)
self.check_select_status(
editor=editor, date=datetime.date(2010, 4, 6), selected=False
)
def test_set_one_sided_range_error(self):
with self.launch_editor(default_custom_view) as (_, editor):
with self.assertRaises(ValueError) as exception_context:
editor.value = (datetime.date(2010, 10, 3), None)
editor.update_editor()
self.assertIn(
"The start and end dates must be either both defined or both "
"be None",
str(exception_context.exception),
)
def test_set_reverse_range_on_model(self):
with self.launch_editor(default_custom_view) as (foo, editor):
foo.date_range = (
datetime.date(2010, 5, 3),
datetime.date(2010, 5, 1),
)
# None of these dates should be selected
dates = [
datetime.date(2010, 5, 1),
datetime.date(2010, 5, 2),
datetime.date(2010, 5, 3),
]
for date in dates:
self.check_select_status(
editor=editor, date=date, selected=False
)
def test_set_date_range_on_editor(self):
with self.launch_editor(default_custom_view) as (foo, editor):
self.click_date_on_editor(editor, datetime.date(2012, 3, 4))
self.click_date_on_editor(editor, datetime.date(2012, 3, 6))
expected_selected = [
datetime.date(2012, 3, 4),
datetime.date(2012, 3, 5),
datetime.date(2012, 3, 6),
]
for date in expected_selected:
self.check_select_status(
editor=editor, date=date, selected=True
)
self.assertEqual(
foo.date_range,
(datetime.date(2012, 3, 4), datetime.date(2012, 3, 6)),
)
def test_set_date_range_reset_when_click_outside(self):
with self.launch_editor(default_custom_view) as (foo, editor):
foo.date_range = (
datetime.date(2012, 2, 10),
datetime.date(2012, 2, 13),
)
self.click_date_on_editor(editor, datetime.date(2012, 2, 4))
self.assertEqual(
foo.date_range,
(datetime.date(2012, 2, 4), datetime.date(2012, 2, 4)),
)
def test_set_date_range_reverse_order(self):
# Test setting end date first then start date.
with self.launch_editor(default_custom_view) as (foo, editor):
self.click_date_on_editor(editor, datetime.date(2012, 3, 6))
self.click_date_on_editor(editor, datetime.date(2012, 3, 4))
expected_selected = [
datetime.date(2012, 3, 4),
datetime.date(2012, 3, 5),
datetime.date(2012, 3, 6),
]
for date in expected_selected:
self.check_select_status(
editor=editor, date=date, selected=True
)
self.assertEqual(
foo.date_range,
(datetime.date(2012, 3, 4), datetime.date(2012, 3, 6)),
)
def test_allow_no_range(self):
# Test clicking again will unset the range if allow_no_range is True
with self.launch_editor(custom_view_allow_no_range) as (foo, editor):
self.click_date_on_editor(editor, datetime.date(2012, 3, 6))
self.click_date_on_editor(editor, datetime.date(2012, 3, 4))
expected_selected = [
datetime.date(2012, 3, 4),
datetime.date(2012, 3, 5),
datetime.date(2012, 3, 6),
]
for date in expected_selected:
self.check_select_status(
editor=editor, date=date, selected=True
)
# Click again
self.click_date_on_editor(editor, datetime.date(2012, 3, 1))
for date in expected_selected:
self.check_select_status(
editor=editor, date=date, selected=False
)
self.assertEqual(foo.date_range, (None, None))
# --------------------
# Helper methods
# --------------------
@contextlib.contextmanager
def launch_editor(self, view_factory):
foo = Foo()
with create_ui(foo, dict(view=view_factory())) as ui:
(editor,) = ui._editors
yield foo, editor
def check_select_status(self, editor, date, selected):
from pyface.qt import QtCore, QtGui
qdate = QtCore.QDate(date.year, date.month, date.day)
textformat = editor.control.dateTextFormat(qdate)
if selected:
self.assertEqual(
textformat.fontWeight(),
QtGui.QFont.Weight.Bold,
"{!r} is not selected.".format(date),
)
self.assertEqual(
textformat.background().color().green(),
128,
"Expected non-zero green color value.",
)
else:
self.assertEqual(
textformat.fontWeight(),
QtGui.QFont.Weight.Normal,
"{!r} is not unselected.".format(date),
)
self.assertEqual(
textformat.background().style(),
QtCore.Qt.BrushStyle.NoBrush,
"Expected brush to have been reset.",
)
self.assertEqual(
textformat.background().color().green(),
0,
"Expected color to have been reset.",
)
def click_date_on_editor(self, editor, date):
from pyface.qt import QtCore
# QCalendarWidget.setSelectedDate modifies internal state
# instead of triggering the click signal.
# So we call update_object directly
editor.update_object(QtCore.QDate(date.year, date.month, date.day))
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