test_banned_log_messages.py

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# Test that impalad logs omit specific messages we shouldn't see.

from __future__ import absolute_import, division, print_function
import os
import subprocess


class TestBannedLogMessages:
  """Verify that specific log messages are banned from Impala logs.

  This test suite should be run after all the tests have been run.
  """

  def assert_message_absent(self, message, log_dir=os.environ["IMPALA_LOGS_DIR"]):
    for root, _, files in os.walk(log_dir):
      for file in files:
        log_file_path = os.path.join(root, file)
        returncode = subprocess.call(['grep', message, log_file_path])
        assert returncode == 1, "%s contains '%s'" % (log_file_path, message)

  def test_no_inaccessible_objects(self):
    """Test that cluster logs do not contain InaccessibleObjectException"""
    self.assert_message_absent('InaccessibleObjectException')

  def test_no_unsupported_operations(self):
    """Test that cluster logs do not contain jamm.CannotAccessFieldException"""
    self.assert_message_absent('CannotAccessFieldException')