def test_discrete_date_slider(document, comm):
dates = OrderedDict([('2016-01-0%d' % i, datetime(2016, 1, i))
for i in range(1, 4)])
discrete_slider = DiscreteSlider(name='DiscreteSlider',
value=dates['2016-01-02'],
options=dates)
box = discrete_slider._get_root(document, comm=comm)
assert isinstance(box, Column)
label = box.children[0]
widget = box.children[1]
assert isinstance(label, BkDiv)
assert isinstance(widget, BkSlider)
assert widget.value == 1
assert widget.start == 0
assert widget.end == 2
assert widget.step == 1
assert label.text == 'DiscreteSlider: <b>2016-01-02</b>'
widget.value = 2
discrete_slider._slider._comm_change({'value': 2})
assert discrete_slider.value == dates['2016-01-03']
discrete_slider.value = dates['2016-01-01']
assert widget.value == 0
def test_discrete_slider(document, comm):
discrete_slider = DiscreteSlider(name='DiscreteSlider',
value=1,
options=[0.1, 1, 10, 100])
box = discrete_slider._get_root(document, comm=comm)
label = box.children[0]
widget = box.children[1]
assert isinstance(label, BkDiv)
assert isinstance(widget, BkSlider)
assert widget.value == 1
assert widget.start == 0
assert widget.end == 3
assert widget.step == 1
assert label.text == 'DiscreteSlider: <b>1</b>'
widget.value = 2
discrete_slider._slider._comm_change({'value': 2})
assert discrete_slider.value == 10
discrete_slider.value = 100
assert widget.value == 3
def test_discrete_slider_options_dict(document, comm):
options = OrderedDict([('0.1', 0.1), ('1', 1), ('10', 10), ('100', 100)])
discrete_slider = DiscreteSlider(name='DiscreteSlider',
value=1,
options=options)
box = discrete_slider._get_root(document, comm=comm)
label = box.children[0]
widget = box.children[1]
assert isinstance(label, BkDiv)
assert isinstance(widget, BkSlider)
assert widget.value == 1
assert widget.start == 0
assert widget.end == 3
assert widget.step == 1
assert label.text == 'DiscreteSlider: <b>1</b>'
widget.value = 2
discrete_slider._slider._comm_change({'value': 2})
assert discrete_slider.value == 10
discrete_slider.value = 100
assert widget.value == 3
