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._process_event(None)
assert button.clicks == 1
def test_button_event(document, comm):
button = Button(name='Button')
widget = button.get_root(document, comm=comm)
events = []
def callback(event):
events.append(event.new)
button.param.watch(callback, 'value')
assert button.value == False
button._process_event(ButtonClick(widget))
assert events == [True]
assert button.value == False