Allen Lavoie 5528b56647 Ignore get_configs that aren't JSON-serializable when saving checkpoints
This is extra "nice to have" metadata, and otherwise it looks like a checkpointing error. Not worth bothering people about.

PiperOrigin-RevId: 235247436
2019-02-22 13:32:05 -08:00

103 lines
3.8 KiB
Python

# 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.
# ==============================================================================
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import functools
import os
from tensorflow.python.framework import ops
from tensorflow.python.ops import variable_scope
from tensorflow.python.platform import test
from tensorflow.python.training.tracking import base
from tensorflow.python.training.tracking import util
class InterfaceTests(test.TestCase):
def testOverwrite(self):
root = base.Trackable()
leaf = base.Trackable()
root._track_trackable(leaf, name="leaf")
(current_name, current_dependency), = root._checkpoint_dependencies
self.assertIs(leaf, current_dependency)
self.assertEqual("leaf", current_name)
duplicate_name_dep = base.Trackable()
with self.assertRaises(ValueError):
root._track_trackable(duplicate_name_dep, name="leaf")
root._track_trackable(duplicate_name_dep, name="leaf", overwrite=True)
(current_name, current_dependency), = root._checkpoint_dependencies
self.assertIs(duplicate_name_dep, current_dependency)
self.assertEqual("leaf", current_name)
def testAddVariableOverwrite(self):
root = base.Trackable()
a = root._add_variable_with_custom_getter(
name="v", shape=[], getter=variable_scope.get_variable)
self.assertEqual([root, a], util.list_objects(root))
with ops.Graph().as_default():
b = root._add_variable_with_custom_getter(
name="v", shape=[], overwrite=True,
getter=variable_scope.get_variable)
self.assertEqual([root, b], util.list_objects(root))
with ops.Graph().as_default():
with self.assertRaisesRegexp(
ValueError, "already declared as a dependency"):
root._add_variable_with_custom_getter(
name="v", shape=[], overwrite=False,
getter=variable_scope.get_variable)
def testAssertConsumedWithUnusedPythonState(self):
has_config = base.Trackable()
has_config.get_config = lambda: {}
saved = util.Checkpoint(obj=has_config)
save_path = saved.save(os.path.join(self.get_temp_dir(), "ckpt"))
restored = util.Checkpoint(obj=base.Trackable())
restored.restore(save_path).assert_consumed()
def testAssertConsumedFailsWithUsedPythonState(self):
has_config = base.Trackable()
attributes = {
"foo_attr": functools.partial(
base.PythonStringStateSaveable,
state_callback=lambda: "",
restore_callback=lambda x: None)}
has_config._gather_saveables_for_checkpoint = lambda: attributes
saved = util.Checkpoint(obj=has_config)
save_path = saved.save(os.path.join(self.get_temp_dir(), "ckpt"))
restored = util.Checkpoint(obj=base.Trackable())
status = restored.restore(save_path)
with self.assertRaisesRegexp(AssertionError, "foo_attr"):
status.assert_consumed()
def testBuggyGetConfig(self):
class NotSerializable(object):
pass
class GetConfigRaisesError(base.Trackable):
def get_config(self):
return NotSerializable()
util.Checkpoint(obj=GetConfigRaisesError()).save(
os.path.join(self.get_temp_dir(), "ckpt"))
if __name__ == "__main__":
ops.enable_eager_execution()
test.main()