def test_no_iteration(self):
activation = invoke(composer.loop(cond_false, dec_n), {'n': 1})
assert activation['response']['result'] == {'n': 1}
def test_while_must_throw(self):
activation = invoke(
composer.do(composer.loop(composer.literal(False), None),
return_error_message), {'error': 'foo'})
assert activation['response']['result'] == {'message': 'foo'}
def test_a_few_iterations(self):
activation = invoke(
composer.loop('isNotOne', lambda env, args: {'n': args['n'] - 1}),
{'n': 4})
assert activation['response']['result'] == {'n': 1}