Merge pull request #1 from willmj/dataloader-v2-impl-unit-fix

tests: reformat `mock.patch` to inside unit tests

tests/utils/test_logging.py

@@ -28,57 +28,57 @@
 from tuning.utils.logging import set_log_level
 
 
-@mock.patch.dict(os.environ, {}, clear=True)
 def test_set_log_level_for_logger_default():
     """
     Ensure that the correct log level is being set for python native logger and
     transformers logger when no env var or CLI flag is passed
     """
+
+    with mock.patch.dict(os.environ, {}, clear=True):
+        train_args = copy.deepcopy(TRAIN_ARGS)
+        training_args, logger = set_log_level(train_args)
+        assert logger.getEffectiveLevel() == logging.WARNING
+        assert training_args.log_level == "passive"
 
-    train_args = copy.deepcopy(TRAIN_ARGS)
-    training_args, logger = set_log_level(train_args)
-    assert logger.getEffectiveLevel() == logging.WARNING
-    assert training_args.log_level == "passive"
 
-
-@mock.patch.dict(os.environ, {"LOG_LEVEL": "info"}, clear=True)
 def test_set_log_level_for_logger_with_env_var():
     """
     Ensure that the correct log level is being set for python native logger and
     transformers logger when env var LOG_LEVEL is used
     """
 
-    train_args_env = copy.deepcopy(TRAIN_ARGS)
-    training_args, logger = set_log_level(train_args_env)
-    assert logger.getEffectiveLevel() == logging.INFO
-    assert training_args.log_level == "info"
+    with mock.patch.dict(os.environ, {"LOG_LEVEL": "info"}, clear=True):
+        train_args_env = copy.deepcopy(TRAIN_ARGS)
+        training_args, logger = set_log_level(train_args_env)
+        assert logger.getEffectiveLevel() == logging.INFO
+        assert training_args.log_level == "info"
 
 
-@mock.patch.dict(os.environ, {"TRANSFORMERS_VERBOSITY": "info"}, clear=True)
 def test_set_log_level_for_logger_with_set_verbosity_and_cli():
     """
     Ensure that the correct log level is being set for python native logger and
     log_level of transformers logger is unchanged when env var TRANSFORMERS_VERBOSITY is used
     and CLI flag is passed
     """
 
-    train_args = copy.deepcopy(TRAIN_ARGS)
-    train_args.log_level = "error"
-    training_args, logger = set_log_level(train_args)
-    assert logger.getEffectiveLevel() == logging.ERROR
-    assert training_args.log_level == "error"
+    with mock.patch.dict(os.environ, {"TRANSFORMERS_VERBOSITY": "info"}, clear=True):
+        train_args = copy.deepcopy(TRAIN_ARGS)
+        train_args.log_level = "error"
+        training_args, logger = set_log_level(train_args)
+        assert logger.getEffectiveLevel() == logging.ERROR
+        assert training_args.log_level == "error"
 
 
-@mock.patch.dict(os.environ, {"LOG_LEVEL": "info"}, clear=True)
 def test_set_log_level_for_logger_with_env_var_and_cli():
     """
     Ensure that the correct log level is being set for python native logger and
     transformers logger when env var LOG_LEVEL is used and CLI flag is passed.
     In this case, CLI arg takes precedence over the set env var LOG_LEVEL.
     """
 
-    train_args = copy.deepcopy(TRAIN_ARGS)
-    train_args.log_level = "error"
-    training_args, logger = set_log_level(train_args)
-    assert logger.getEffectiveLevel() == logging.ERROR
-    assert training_args.log_level == "error"
+    with mock.patch.dict(os.environ, {"LOG_LEVEL": "info"}, clear=True):
+        train_args = copy.deepcopy(TRAIN_ARGS)
+        train_args.log_level = "error"
+        training_args, logger = set_log_level(train_args)
+        assert logger.getEffectiveLevel() == logging.ERROR
+        assert training_args.log_level == "error"