old_contents: import pytest
  import logging
  
  from charset_normalizer.utils import set_logging_handler
  from charset_normalizer.api import from_bytes, explain_handler
  from charset_normalizer.constant import TRACE
  
  
  class TestLogBehaviorClass:
      def setup(self):
          self.logger = logging.getLogger("charset_normalizer")
          self.logger.handlers.clear()
          self.logger.addHandler(logging.NullHandler())
          self.logger.level = logging.WARNING
  
      def test_explain_true_behavior(self, caplog):
          test_sequence = b'This is a test sequence of bytes that should be sufficient'
          from_bytes(test_sequence, steps=1, chunk_size=50, explain=True)
          assert explain_handler not in self.logger.handlers
          for record in caplog.records:
              assert record.levelname in ["Level 5", "DEBUG"]
  
      def test_explain_false_handler_set_behavior(self, caplog):
          test_sequence = b'This is a test sequence of bytes that should be sufficient'
          set_logging_handler(level=TRACE, format_string="%(message)s")
          from_bytes(test_sequence, steps=1, chunk_size=50, explain=False)
          assert any(isinstance(hdl, logging.StreamHandler) for hdl in self.logger.handlers)
          for record in caplog.records:
              assert record.levelname in ["Level 5", "DEBUG"]
          assert "Encoding detection: ascii is most likely the one." in caplog.text
  
      def test_set_stream_handler(self, caplog):
          set_logging_handler(
              "charset_normalizer", level=logging.DEBUG
          )
          self.logger.debug("log content should log with default format")
          for record in caplog.records:
              assert record.levelname in ["Level 5", "DEBUG"]
          assert "log content should log with default format" in caplog.text
  
      def test_set_stream_handler_format(self, caplog):
          set_logging_handler(
              "charset_normalizer", format_string="%(message)s"
          )
          self.logger.info("log content should only be this message")
          assert caplog.record_tuples == [
              (
                  "charset_normalizer",
                  logging.INFO,
                  "log content should only be this message",
              )
          ]
  
new_contents: import pytest
  import logging
  
  from charset_normalizer.utils import set_logging_handler
  from charset_normalizer.api import from_bytes, explain_handler
  from charset_normalizer.constant import TRACE
  
  
  class TestLogBehaviorClass:
      def setup_method(self):
          self.logger = logging.getLogger("charset_normalizer")
          self.logger.handlers.clear()
          self.logger.addHandler(logging.NullHandler())
          self.logger.level = logging.WARNING
  
      def test_explain_true_behavior(self, caplog):
          test_sequence = b'This is a test sequence of bytes that should be sufficient'
          from_bytes(test_sequence, steps=1, chunk_size=50, explain=True)
          assert explain_handler not in self.logger.handlers
          for record in caplog.records:
              assert record.levelname in ["Level 5", "DEBUG"]
  
      def test_explain_false_handler_set_behavior(self, caplog):
          test_sequence = b'This is a test sequence of bytes that should be sufficient'
          set_logging_handler(level=TRACE, format_string="%(message)s")
          from_bytes(test_sequence, steps=1, chunk_size=50, explain=False)
          assert any(isinstance(hdl, logging.StreamHandler) for hdl in self.logger.handlers)
          for record in caplog.records:
              assert record.levelname in ["Level 5", "DEBUG"]
          assert "Encoding detection: ascii is most likely the one." in caplog.text
  
      def test_set_stream_handler(self, caplog):
          set_logging_handler(
              "charset_normalizer", level=logging.DEBUG
          )
          self.logger.debug("log content should log with default format")
          for record in caplog.records:
              assert record.levelname in ["Level 5", "DEBUG"]
          assert "log content should log with default format" in caplog.text
  
      def test_set_stream_handler_format(self, caplog):
          set_logging_handler(
              "charset_normalizer", format_string="%(message)s"
          )
          self.logger.info("log content should only be this message")
          assert caplog.record_tuples == [
              (
                  "charset_normalizer",
                  logging.INFO,
                  "log content should only be this message",
              )
          ]
  
subject: Update test_logging.py (#239)