def hasChild(self, childJob):
        return childJob in self._children
Test to unlinks, then symlinks /etc/localtime to the set timezone.
dataset/ETHPy150Open BD2KGenomics/toil/src/toil/job.py/Job.hasChild--crossover with--dataset/ETHPy150Open saltstack/salt/tests/unit/modules/timezone_test.py/TimezoneTestCase.test_set_zone