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# Copyright 2015 The TensorFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
"""Tests for tensorflow.python.framework.tensorboard_logging."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import glob
import os
import shutil
import tempfile
import time
from tensorflow.core.util import event_pb2
from tensorflow.python.platform import test
from tensorflow.python.platform import tf_logging as logging
from tensorflow.python.summary import summary_iterator
from tensorflow.python.summary.writer import writer
from tensorflow.python.training import tensorboard_logging
class EventLoggingTest(test.TestCase):
def setUp(self):
self._work_dir = tempfile.mkdtemp(dir=self.get_temp_dir())
self._sw = writer.FileWriter(self._work_dir)
tensorboard_logging.set_summary_writer(self._sw)
self.addCleanup(shutil.rmtree, self._work_dir)
# Stop the clock to avoid test flakiness.
now = time.time()
time._real_time = time.time
time.time = lambda: now
# Mock out logging calls so we can verify that the right number of messages
# get logged.
self.logged_message_count = 0
self._actual_log = logging.log
def mockLog(*args, **kwargs):
self.logged_message_count += 1
self._actual_log(*args, **kwargs)
logging.log = mockLog
def tearDown(self):
time.time = time._real_time
logging.log = self._actual_log
def assertLoggedMessagesAre(self, expected_messages):
self._sw.close()
event_paths = glob.glob(os.path.join(self._work_dir, "event*"))
# If the tests runs multiple time in the same directory we can have
# more than one matching event file. We only want to read the last one.
self.assertTrue(event_paths)
event_reader = summary_iterator.summary_iterator(event_paths[-1])
# Skip over the version event.
next(event_reader)
for level, message in expected_messages:
event = next(event_reader)
self.assertEqual(event.wall_time, time.time())
self.assertEqual(event.log_message.level, level)
self.assertEqual(event.log_message.message, message)
def testBasic(self):
tensorboard_logging.set_summary_writer(self._sw)
tensorboard_logging.error("oh no!")
tensorboard_logging.error("for%s", "mat")
self.assertLoggedMessagesAre([(event_pb2.LogMessage.ERROR, "oh no!"),
(event_pb2.LogMessage.ERROR, "format")])
self.assertEqual(2, self.logged_message_count)
def testVerbosity(self):
tensorboard_logging.set_summary_writer(self._sw)
tensorboard_logging.set_verbosity(tensorboard_logging.ERROR)
tensorboard_logging.warn("warn")
tensorboard_logging.error("error")
tensorboard_logging.set_verbosity(tensorboard_logging.DEBUG)
tensorboard_logging.debug("debug")
self.assertLoggedMessagesAre([(event_pb2.LogMessage.ERROR, "error"),
(event_pb2.LogMessage.DEBUGGING, "debug")])
# All message should be logged because tensorboard_logging verbosity doesn't
# affect logging verbosity.
self.assertEqual(3, self.logged_message_count)
def testBadVerbosity(self):
with self.assertRaises(ValueError):
tensorboard_logging.set_verbosity("failure")
with self.assertRaises(ValueError):
tensorboard_logging.log("bad", "dead")
def testNoSummaryWriter(self):
"""Test that logging without a SummaryWriter succeeds."""
tensorboard_logging.set_summary_writer(None)
tensorboard_logging.warn("this should work")
self.assertEqual(1, self.logged_message_count)
def testSummaryWriterFailsAfterClear(self):
tensorboard_logging._clear_summary_writer()
with self.assertRaises(RuntimeError):
tensorboard_logging.log(tensorboard_logging.ERROR, "failure")
if __name__ == "__main__":
test.main()
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