Improved local test example with mock

Author: ivan-khvostishkov

tests/test_local.py

@@ -25,7 +25,7 @@ def test_local_training():
     f"""
     Compare with https://github.com/aws/amazon-sagemaker-examples/tree/main/advanced_functionality/scikit_bring_your_own/container/local_test .
     """
-    assert training_environment.SAGEMAKER_BASE_PATH == "/opt/ml", "default path  should be /opt/ml"
+    assert training_environment.SAGEMAKER_BASE_PATH == "/opt/ml", "default path should be /opt/ml"
     assert training_environment.base_dir.endswith("/opt_ml"), "override path should end with /opt_ml"
 
     test_util._clean_training_opt_ml_dir()