def test_date_range_slider(document, comm):
date_slider = DateRangeSlider(name='DateRangeSlider',
value=(datetime(2018, 9, 2), datetime(2018, 9, 4)),
start=datetime(2018, 9, 1), end=datetime(2018, 9, 10))
widget = date_slider.get_root(document, comm=comm)
assert isinstance(widget, date_slider._widget_type)
assert widget.title == 'DateRangeSlider'
assert widget.value == (1535846400000, 1536019200000)
assert widget.start == 1535760000000
assert widget.end == 1536537600000
epoch = datetime(1970, 1, 1)
widget.value = ((datetime(2018, 9, 3)-epoch).total_seconds()*1000,
(datetime(2018, 9, 6)-epoch).total_seconds()*1000)
date_slider._process_events({'value': widget.value})
assert date_slider.value == (datetime(2018, 9, 3), datetime(2018, 9, 6))
value_throttled = ((datetime(2018, 9, 3)-epoch).total_seconds()*1000,
(datetime(2018, 9, 6)-epoch).total_seconds()*1000)
date_slider._process_events({'value_throttled': value_throttled})
assert date_slider.value == (datetime(2018, 9, 3), datetime(2018, 9, 6))
date_slider.value = (datetime(2018, 9, 4), datetime(2018, 9, 6))
assert widget.value == (1536019200000, 1536192000000)
def test_date_range_slider(document, comm):
date_slider = DateRangeSlider(name='DateRangeSlider',
value=(datetime(2018, 9,
2), datetime(2018, 9, 4)),
start=datetime(2018, 9, 1),
end=datetime(2018, 9, 10))
widget = date_slider.get_root(document, comm=comm)
assert isinstance(widget, date_slider._widget_type)
assert widget.title == 'DateRangeSlider'
assert widget.value == (1535846400000, 1536019200000)
assert widget.start == 1535760000000
assert widget.end == 1536537600000
epoch = datetime(1970, 1, 1)
widget.value = ((datetime(2018, 9, 3) - epoch).total_seconds() * 1000,
(datetime(2018, 9, 6) - epoch).total_seconds() * 1000)
date_slider._process_events({'value': widget.value})
assert date_slider.value == (datetime(2018, 9, 3), datetime(2018, 9, 6))
value_throttled = ((datetime(2018, 9, 3) - epoch).total_seconds() * 1000,
(datetime(2018, 9, 6) - epoch).total_seconds() * 1000)
date_slider._process_events({'value_throttled': value_throttled})
assert date_slider.value == (datetime(2018, 9, 3), datetime(2018, 9, 6))
date_slider.value = (datetime(2018, 9, 4), datetime(2018, 9, 6))
assert widget.value == (1536019200000, 1536192000000)
# Testing throttled mode
epoch_time = lambda dt: (dt - epoch).total_seconds() * 1000
epoch_times = lambda *dts: tuple(map(epoch_time, dts))
with config.set(throttled=True):
date_slider._process_events({
'value':
epoch_times(datetime(2021, 2, 15), datetime(2021, 5, 15))
})
assert date_slider.value == (datetime(2018, 9,
4), datetime(2018, 9,
6)) # no change
date_slider._process_events({
'value_throttled':
epoch_times(datetime(2021, 2, 15), datetime(2021, 5, 15))
})
assert date_slider.value == (datetime(2021, 2,
15), datetime(2021, 5, 15))
date_slider.value = (datetime(2021, 2, 12), datetime(2021, 5, 12))
assert widget.value == (1613088000000, 1620777600000)