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#
# 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.

import pytest

from google.api_core import version_header


@pytest.mark.parametrize("version_identifier", ["some_value", ""])
def test_to_api_version_header(version_identifier):
    value = version_header.to_api_version_header(version_identifier)
    assert value == (version_header.API_VERSION_METADATA_KEY, version_identifier)