def test_button(document, comm):
button = Button(name='Button')
widget = button.get_root(document, comm=comm)
assert isinstance(widget, button._widget_type)
assert widget.label == 'Button'
button._comm_change({'clicks': 1})
assert button.clicks == 1
def test_button(document, comm):
button = Button(name='Button')
box = button._get_model(document, comm=comm)
assert isinstance(box, WidgetBox)
widget = box.children[0]
assert isinstance(widget, button._widget_type)
assert widget.clicks == 0
assert widget.label == 'Button'
widget.clicks = 1
button._comm_change({'clicks': widget.clicks})
assert button.clicks == 1