def test_date_picker(document, comm):
date_picker = DatePicker(name='DatePicker',
value=datetime(2018, 9, 2),
start=datetime(2018, 9, 1),
end=datetime(2018, 9, 10))
widget = date_picker.get_root(document, comm=comm)
assert isinstance(widget, date_picker._widget_type)
assert widget.title == 'DatePicker'
assert widget.value == datetime(2018, 9, 2)
assert widget.min_date == datetime(2018, 9, 1)
assert widget.max_date == datetime(2018, 9, 10)
widget.value = 'Mon Sep 03 2018'
date_picker._comm_change({'value': 'Mon Sep 03 2018'})
assert date_picker.value == datetime(2018, 9, 3)
date_picker._comm_change({'value': date(2018, 9, 5)})
assert date_picker.value == date(2018, 9, 5)
date_picker._comm_change({'value': datetime(2018, 9, 6)})
assert date_picker.value == datetime(2018, 9, 6)
date_picker.value = datetime(2018, 9, 4)
assert widget.value == date_picker.value
def test_date_picker(document, comm):
date_picker = DatePicker(name='DatePicker',
value=date(2018, 9, 2),
start=date(2018, 9, 1),
end=date(2018, 9, 10))
widget = date_picker.get_root(document, comm=comm)
assert isinstance(widget, date_picker._widget_type)
assert widget.title == 'DatePicker'
assert widget.value == '2018-09-02'
assert widget.min_date == '2018-09-01'
assert widget.max_date == '2018-09-10'
widget.value = '2018-09-03'
date_picker._process_events({'value': '2018-09-03'})
assert date_picker.value == date(2018, 9, 3)
date_picker._process_events({'value': date(2018, 9, 5)})
assert date_picker.value == date(2018, 9, 5)
date_picker._process_events({'value': date(2018, 9, 6)})
assert date_picker.value == date(2018, 9, 6)
date_picker.value = date(2018, 9, 4)
assert widget.value == '2018-09-04'