def test_transformer_assignment_error_dash(syntax_error, magic):
token = magic(value='-')
matches = [magic(children=[token])]
with raises(StorySyntaxError):
Transformer.assignment(matches)
syntax_error.assert_called_with('variables_dash', token=token)
def test_transformer_assignment(magic):
matches = [magic()]
assert Transformer.assignment(matches) == Tree('assignment', matches)