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# 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.
# ==============================================================================
"""Tests for learn.utils.gc."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import os
import re
from six.moves import xrange # pylint: disable=redefined-builtin
from tensorflow.contrib.learn.python.learn.utils import gc
from tensorflow.python.framework import test_util
from tensorflow.python.platform import gfile
from tensorflow.python.platform import test
from tensorflow.python.util import compat
def _create_parser(base_dir):
# create a simple parser that pulls the export_version from the directory.
def parser(path):
match = re.match("^" + compat.as_str_any(base_dir) + "/(\\d+)$",
compat.as_str_any(path.path))
if not match:
return None
return path._replace(export_version=int(match.group(1)))
return parser
class GcTest(test_util.TensorFlowTestCase):
def testLargestExportVersions(self):
paths = [gc.Path("/foo", 8), gc.Path("/foo", 9), gc.Path("/foo", 10)]
newest = gc.largest_export_versions(2)
n = newest(paths)
self.assertEquals(n, [gc.Path("/foo", 9), gc.Path("/foo", 10)])
def testLargestExportVersionsDoesNotDeleteZeroFolder(self):
paths = [gc.Path("/foo", 0), gc.Path("/foo", 3)]
newest = gc.largest_export_versions(2)
n = newest(paths)
self.assertEquals(n, [gc.Path("/foo", 0), gc.Path("/foo", 3)])
def testModExportVersion(self):
paths = [
gc.Path("/foo", 4), gc.Path("/foo", 5), gc.Path("/foo", 6),
gc.Path("/foo", 9)
]
mod = gc.mod_export_version(2)
self.assertEquals(mod(paths), [gc.Path("/foo", 4), gc.Path("/foo", 6)])
mod = gc.mod_export_version(3)
self.assertEquals(mod(paths), [gc.Path("/foo", 6), gc.Path("/foo", 9)])
def testOneOfEveryNExportVersions(self):
paths = [
gc.Path("/foo", 0), gc.Path("/foo", 1), gc.Path("/foo", 3),
gc.Path("/foo", 5), gc.Path("/foo", 6), gc.Path("/foo", 7),
gc.Path("/foo", 8), gc.Path("/foo", 33)
]
one_of = gc.one_of_every_n_export_versions(3)
self.assertEquals(
one_of(paths), [
gc.Path("/foo", 3), gc.Path("/foo", 6), gc.Path("/foo", 8),
gc.Path("/foo", 33)
])
def testOneOfEveryNExportVersionsZero(self):
# Zero is a special case since it gets rolled into the first interval.
# Test that here.
paths = [gc.Path("/foo", 0), gc.Path("/foo", 4), gc.Path("/foo", 5)]
one_of = gc.one_of_every_n_export_versions(3)
self.assertEquals(one_of(paths), [gc.Path("/foo", 0), gc.Path("/foo", 5)])
def testUnion(self):
paths = []
for i in xrange(10):
paths.append(gc.Path("/foo", i))
f = gc.union(gc.largest_export_versions(3), gc.mod_export_version(3))
self.assertEquals(
f(paths), [
gc.Path("/foo", 0), gc.Path("/foo", 3), gc.Path("/foo", 6),
gc.Path("/foo", 7), gc.Path("/foo", 8), gc.Path("/foo", 9)
])
def testNegation(self):
paths = [
gc.Path("/foo", 4), gc.Path("/foo", 5), gc.Path("/foo", 6),
gc.Path("/foo", 9)
]
mod = gc.negation(gc.mod_export_version(2))
self.assertEquals(mod(paths), [gc.Path("/foo", 5), gc.Path("/foo", 9)])
mod = gc.negation(gc.mod_export_version(3))
self.assertEquals(mod(paths), [gc.Path("/foo", 4), gc.Path("/foo", 5)])
def testPathsWithParse(self):
base_dir = os.path.join(test.get_temp_dir(), "paths_parse")
self.assertFalse(gfile.Exists(base_dir))
for p in xrange(3):
gfile.MakeDirs(os.path.join(base_dir, "%d" % p))
# add a base_directory to ignore
gfile.MakeDirs(os.path.join(base_dir, "ignore"))
self.assertEquals(
gc.get_paths(base_dir, _create_parser(base_dir)),
[
gc.Path(os.path.join(base_dir, "0"), 0),
gc.Path(os.path.join(base_dir, "1"), 1),
gc.Path(os.path.join(base_dir, "2"), 2)
])
def testMixedStrTypes(self):
temp_dir = compat.as_bytes(test.get_temp_dir())
for sub_dir in ['str', b'bytes', u'unicode']:
base_dir = os.path.join(
(temp_dir if isinstance(sub_dir, bytes) else temp_dir.decode()),
sub_dir)
self.assertFalse(gfile.Exists(base_dir))
gfile.MakeDirs(os.path.join(compat.as_str_any(base_dir), "42"))
gc.get_paths(base_dir, _create_parser(base_dir))
if __name__ == "__main__":
test.main()
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