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# Copyright 2023 The Orbit 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 orbit.actions.export_saved_model."""
import os
from orbit import actions
from orbit.actions import export_saved_model
import tensorflow as tf, tf_keras
def _id_key(name):
_, id_num = name.rsplit('-', maxsplit=1)
return int(id_num)
def _id_sorted_file_base_names(dir_path):
return sorted(tf.io.gfile.listdir(dir_path), key=_id_key)
class TestModel(tf.Module):
def __init__(self):
self.value = tf.Variable(0)
@tf.function(input_signature=[])
def __call__(self):
return self.value
class ExportSavedModelTest(tf.test.TestCase):
def test_export_file_manager_default_ids(self):
directory = self.create_tempdir()
base_name = os.path.join(directory.full_path, 'basename')
manager = actions.ExportFileManager(base_name, max_to_keep=3)
self.assertEmpty(tf.io.gfile.listdir(directory.full_path))
directory.create_file(manager.next_name())
manager.clean_up() # Shouldn't do anything...
self.assertLen(tf.io.gfile.listdir(directory.full_path), 1)
directory.create_file(manager.next_name())
manager.clean_up() # Shouldn't do anything...
self.assertLen(tf.io.gfile.listdir(directory.full_path), 2)
directory.create_file(manager.next_name())
manager.clean_up() # Shouldn't do anything...
self.assertLen(tf.io.gfile.listdir(directory.full_path), 3)
directory.create_file(manager.next_name())
self.assertLen(tf.io.gfile.listdir(directory.full_path), 4)
self.assertEqual(
_id_sorted_file_base_names(directory.full_path),
['basename-0', 'basename-1', 'basename-2', 'basename-3'])
manager.clean_up() # Should delete file with lowest ID.
self.assertEqual(
_id_sorted_file_base_names(directory.full_path),
['basename-1', 'basename-2', 'basename-3'])
manager = actions.ExportFileManager(base_name, max_to_keep=3)
self.assertEqual(os.path.basename(manager.next_name()), 'basename-4')
def test_export_file_manager_custom_ids(self):
directory = self.create_tempdir()
base_name = os.path.join(directory.full_path, 'basename')
id_num = 0
def next_id():
return id_num
manager = actions.ExportFileManager(
base_name, max_to_keep=2, next_id_fn=next_id)
self.assertEmpty(tf.io.gfile.listdir(directory.full_path))
id_num = 30
directory.create_file(manager.next_name())
self.assertLen(tf.io.gfile.listdir(directory.full_path), 1)
manager.clean_up() # Shouldn't do anything...
self.assertEqual(
_id_sorted_file_base_names(directory.full_path), ['basename-30'])
id_num = 200
directory.create_file(manager.next_name())
self.assertLen(tf.io.gfile.listdir(directory.full_path), 2)
manager.clean_up() # Shouldn't do anything...
self.assertEqual(
_id_sorted_file_base_names(directory.full_path),
['basename-30', 'basename-200'])
id_num = 1000
directory.create_file(manager.next_name())
self.assertLen(tf.io.gfile.listdir(directory.full_path), 3)
self.assertEqual(
_id_sorted_file_base_names(directory.full_path),
['basename-30', 'basename-200', 'basename-1000'])
manager.clean_up() # Should delete file with lowest ID.
self.assertLen(tf.io.gfile.listdir(directory.full_path), 2)
self.assertEqual(
_id_sorted_file_base_names(directory.full_path),
['basename-200', 'basename-1000'])
def test_export_file_manager_with_suffix(self):
directory = self.create_tempdir()
base_name = os.path.join(directory.full_path, 'basename')
id_num = 0
def next_id():
return id_num
subdirectory = 'sub'
manager = actions.ExportFileManager(
base_name, max_to_keep=2, next_id_fn=next_id, subdirectory=subdirectory
)
self.assertEmpty(tf.io.gfile.listdir(directory.full_path))
id_num = 30
directory.create_file(manager.next_name())
self.assertLen(tf.io.gfile.listdir(directory.full_path), 1)
manager.clean_up() # Shouldn't do anything...
self.assertEqual(
_id_sorted_file_base_names(directory.full_path), ['basename-30']
)
id_num = 200
directory.create_file(manager.next_name())
self.assertLen(tf.io.gfile.listdir(directory.full_path), 2)
manager.clean_up() # Shouldn't do anything...
self.assertEqual(
_id_sorted_file_base_names(directory.full_path),
['basename-30', 'basename-200'],
)
id_num = 1000
directory.create_file(manager.next_name())
self.assertLen(tf.io.gfile.listdir(directory.full_path), 3)
self.assertEqual(
_id_sorted_file_base_names(directory.full_path),
['basename-30', 'basename-200', 'basename-1000'],
)
manager.clean_up() # Should delete file with lowest ID.
self.assertLen(tf.io.gfile.listdir(directory.full_path), 3)
# Note that the base folder is intact, only the suffix folder is deleted.
self.assertEqual(
_id_sorted_file_base_names(directory.full_path),
['basename-30', 'basename-200', 'basename-1000'],
)
step_folder = os.path.join(directory.full_path, 'basename-1000')
self.assertIn(subdirectory, tf.io.gfile.listdir(step_folder))
def test_export_file_manager_managed_files(self):
directory = self.create_tempdir()
directory.create_file('basename-5')
directory.create_file('basename-10')
directory.create_file('basename-50')
directory.create_file('basename-1000')
directory.create_file('basename-9')
directory.create_file('basename-10-suffix')
base_name = os.path.join(directory.full_path, 'basename')
manager = actions.ExportFileManager(base_name, max_to_keep=3)
self.assertLen(manager.managed_files, 5)
self.assertEqual(manager.next_name(), f'{base_name}-1001')
manager.clean_up()
self.assertEqual(
manager.managed_files,
[f'{base_name}-10', f'{base_name}-50', f'{base_name}-1000'])
def test_export_file_manager_managed_files_double_slash(self):
directory = self.create_tempdir('foo//bar')
directory.create_file('basename-5')
directory.create_file('basename-10')
directory.create_file('basename-50')
directory.create_file('basename-1000')
directory.create_file('basename-9')
directory.create_file('basename-10-suffix')
base_name = os.path.join(directory.full_path, 'basename')
expected_base_name = os.path.normpath(base_name)
self.assertNotEqual(base_name, expected_base_name)
manager = actions.ExportFileManager(base_name, max_to_keep=3)
self.assertLen(manager.managed_files, 5)
self.assertEqual(manager.next_name(), f'{expected_base_name}-1001')
manager.clean_up()
self.assertEqual(manager.managed_files, [
f'{expected_base_name}-10', f'{expected_base_name}-50',
f'{expected_base_name}-1000'
])
def test_export_saved_model(self):
directory = self.create_tempdir()
base_name = os.path.join(directory.full_path, 'basename')
file_manager = actions.ExportFileManager(base_name, max_to_keep=2)
model = TestModel()
export_action = actions.ExportSavedModel(
model, file_manager=file_manager, signatures=model.__call__)
model.value.assign(3)
self.assertEqual(model(), 3)
self.assertEmpty(file_manager.managed_files)
export_action({})
self.assertLen(file_manager.managed_files, 1)
reloaded_model = tf.saved_model.load(file_manager.managed_files[-1])
self.assertEqual(reloaded_model(), 3)
model.value.assign(5)
self.assertEqual(model(), 5)
export_action({})
self.assertLen(file_manager.managed_files, 2)
reloaded_model = tf.saved_model.load(file_manager.managed_files[-1])
self.assertEqual(reloaded_model(), 5)
model.value.assign(7)
self.assertEqual(model(), 7)
export_action({})
self.assertLen(file_manager.managed_files, 2) # Still 2, due to clean up.
reloaded_model = tf.saved_model.load(file_manager.managed_files[-1])
self.assertEqual(reloaded_model(), 7)
def test_safe_normpath_gs(self):
path = export_saved_model.safe_normpath('gs://foo//bar')
self.assertEqual(path, 'gs://foo/bar')
if __name__ == '__main__':
tf.test.main()
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