def test_select_change_groups(document, comm):
groups = dict(A=dict(a=1, b=2), B=dict(c=3))
select = Select(value=groups['A']['a'], groups=groups, name='Select')
widget = select.get_root(document, comm=comm)
new_groups = dict(C=dict(d=4), D=dict(e=5, f=6))
select.groups = new_groups
assert select.value == new_groups['C']['d']
assert widget.value == str(new_groups['C']['d'])
assert widget.options == {'C': [('4', 'd')], 'D': [('5', 'e'), ('6', 'f')]}
select.groups = {}
assert select.value == None
assert widget.value == ''
def test_select_groups_error_with_options():
# Instantiate with groups and options
with pytest.raises(ValueError):
Select(options=[1, 2], groups=dict(a=[1], b=[2]), name='Select')
opts = [1, 2, 3]
groups = dict(a=[1, 2], b=[3])
# Instamtiate with options and then update groups
select = Select(options=opts, name='Select')
with pytest.raises(ValueError):
select.groups = groups
# Instantiate with groups and then update options
select = Select(groups=groups, name='Select')
with pytest.raises(ValueError):
select.options = opts
