def _supports_slice_recovery(self, mapper_spec):
    return False

  # pylint: disable=unused-argument
Test assertWarns failure when the message is wrong.
dataset/ETHPy150Open GoogleCloudPlatform/appengine-mapreduce/python/src/mapreduce/api/map_job/output_writer.py/OutputWriter._supports_slice_recovery--crossover with--dataset/ETHPy150Open nlloyd/SubliminalCollaborator/libs/twisted/trial/test/test_assertions.py/WarningAssertionTests.test_assertWarnsWrongMessage