def setUp(self):
        self.cut = Wrapper('haiku', 123, 'foo')
        self.mongo_client = self.mocker.CreateMock(MongoClient)
        self.mongo_db = self.mocker.CreateMock(Database)
        self.mongo_coll = self.mocker.CreateMock(Collection)
        self.cut.client = self.mongo_client
Helper function to avoid code duplication between self._errors_svd
dataset/ETHPy150Open tmetsch/suricate/tests/data_object_store_test.py/MongoStoreTest.setUp--crossover with--dataset/ETHPy150Open scikit-learn/scikit-learn/sklearn/linear_model/ridge.py/_RidgeGCV._errors_and_values_svd_helper