lightning/tests/tests_pytorch/loggers/test_utilities.py

34 lines
1.2 KiB
Python

# Copyright The Lightning AI team.
#
# 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 lightning.pytorch.loggers import CSVLogger
from lightning.pytorch.loggers.utilities import _version
def test_version(tmpdir):
"""Verify versions of loggers are concatenated properly."""
logger1 = CSVLogger(tmpdir, version=0)
logger2 = CSVLogger(tmpdir, version=2)
logger3 = CSVLogger(tmpdir, version=1)
logger4 = CSVLogger(tmpdir, version=0)
loggers = [logger1, logger2, logger3, logger4]
version = _version([])
assert version == ""
version = _version([logger3])
assert version == 1
version = _version(loggers)
assert version == "0_2_1"
version = _version(loggers, "-")
assert version == "0-2-1"