def add_engines(self, n=1, block=True):
        self.engines.extend(add_engines(n))
        if block:
            self.wait_on_engines()
Test checking to see if a bundle id is installed as being able to use assistive access
dataset/ETHPy150Open ipython/ipython-py3k/IPython/parallel/tests/clienttest.py/ClusterTestCase.add_engines--crossover with--dataset/ETHPy150Open saltstack/salt/tests/unit/modules/mac_assistive_test.py/AssistiveTestCase.test_installed_bundle_not