# Copyright 2016 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.

# ==============================================================================

from __future__ import absolute_import

from __future__ import division

from __future__ import print_function

from six.moves import xrange # pylint: disable=redefined-builtin

from google.protobuf import json_format

from tensorflow.core.framework import summary_pb2

from tensorflow.core.framework import types_pb2

from tensorflow.python.framework import constant_op

from tensorflow.python.framework import ops

from tensorflow.python.ops import array_ops

from tensorflow.python.ops import variables

from tensorflow.python.platform import test

from tensorflow.python.summary import summary as summary_lib

class ScalarSummaryTest(test.TestCase):

def testScalarSummary(self):

with self.test_session() as s:

i = constant_op.constant(3)

with ops.name_scope('outer'):

im = summary_lib.scalar('inner', i)

summary_str = s.run(im)

summary = summary_pb2.Summary()

summary.ParseFromString(summary_str)

values = summary.value

self.assertEqual(len(values), 1)

self.assertEqual(values[0].tag, 'outer/inner')

self.assertEqual(values[0].simple_value, 3.0)

def testSummarizingVariable(self):

with self.test_session() as s:

c = constant_op.constant(42.0)

v = variables.Variable(c)

ss = summary_lib.scalar('summary', v)

init = variables.global_variables_initializer()

s.run(init)

summ_str = s.run(ss)

summary = summary_pb2.Summary()

summary.ParseFromString(summ_str)

self.assertEqual(len(summary.value), 1)

value = summary.value[0]

self.assertEqual(value.tag, 'summary')

self.assertEqual(value.simple_value, 42.0)

def testImageSummary(self):

with self.test_session() as s:

i = array_ops.ones((5, 4, 4, 3))

with ops.name_scope('outer'):

im = summary_lib.image('inner', i, max_outputs=3)

summary_str = s.run(im)

summary = summary_pb2.Summary()

summary.ParseFromString(summary_str)

values = summary.value

self.assertEqual(len(values), 3)

tags = sorted(v.tag for v in values)

expected = sorted('outer/inner/image/{}'.format(i) for i in xrange(3))

self.assertEqual(tags, expected)

def testHistogramSummary(self):

with self.test_session() as s:

i = array_ops.ones((5, 4, 4, 3))

with ops.name_scope('outer'):

summ_op = summary_lib.histogram('inner', i)

summary_str = s.run(summ_op)

summary = summary_pb2.Summary()

summary.ParseFromString(summary_str)

self.assertEqual(len(summary.value), 1)

self.assertEqual(summary.value[0].tag, 'outer/inner')

def testSummaryNameConversion(self):

c = constant_op.constant(3)

s = summary_lib.scalar('name with spaces', c)

self.assertEqual(s.op.name, 'name_with_spaces')

s2 = summary_lib.scalar('name with many $#illegal^: characters!', c)

self.assertEqual(s2.op.name, 'name_with_many___illegal___characters_')

s3 = summary_lib.scalar('/name/with/leading/slash', c)

self.assertEqual(s3.op.name, 'name/with/leading/slash')

if __name__ == '__main__':

test.main()