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# Copyright 2017 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.
# ==============================================================================
"""Utilities to test summaries."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import functools
import os
import sqlite3
from tensorflow.core.util import event_pb2
from tensorflow.python.framework import test_util
from tensorflow.python.lib.io import tf_record
from tensorflow.python.ops import summary_ops_v2 as summary_ops
from tensorflow.python.platform import gfile
class SummaryDbTest(test_util.TensorFlowTestCase):
"""Helper for summary database testing."""
def setUp(self):
super(SummaryDbTest, self).setUp()
self.db_path = os.path.join(self.get_temp_dir(), 'DbTest.sqlite')
if os.path.exists(self.db_path):
os.unlink(self.db_path)
self.db = sqlite3.connect(self.db_path)
self.create_db_writer = functools.partial(
summary_ops.create_db_writer,
db_uri=self.db_path,
experiment_name='experiment',
run_name='run',
user_name='user')
def tearDown(self):
self.db.close()
super(SummaryDbTest, self).tearDown()
def events_from_file(filepath):
"""Returns all events in a single event file.
Args:
filepath: Path to the event file.
Returns:
A list of all tf.Event protos in the event file.
"""
records = list(tf_record.tf_record_iterator(filepath))
result = []
for r in records:
event = event_pb2.Event()
event.ParseFromString(r)
result.append(event)
return result
def events_from_logdir(logdir):
"""Returns all events in the single eventfile in logdir.
Args:
logdir: The directory in which the single event file is sought.
Returns:
A list of all tf.Event protos from the single event file.
Raises:
AssertionError: If logdir does not contain exactly one file.
"""
assert gfile.Exists(logdir)
files = gfile.ListDirectory(logdir)
assert len(files) == 1, 'Found not exactly one file in logdir: %s' % files
return events_from_file(os.path.join(logdir, files[0]))
def get_one(db, q, *p):
return db.execute(q, p).fetchone()[0]
def get_all(db, q, *p):
return unroll(db.execute(q, p).fetchall())
def unroll(list_of_tuples):
return sum(list_of_tuples, ())
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