text: // Copyright 2018 Google Inc.
  //
  // 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.
  //
  ////////////////////////////////////////////////////////////////////////////////
  
  #include "tink/version.h"
  
  #include <string>
  
  #include "gmock/gmock.h"
  #include "gtest/gtest.h"
  
  namespace crypto {
  namespace tink {
  namespace {
  
  TEST(VersionTest, testVersionFormat) {
    // The regex represents Semantic Versioning syntax (www.semver.org),
    // i.e. three dot-separated numbers, with an optional suffix
    // that starts with a hyphen, to cover alpha/beta releases and
    // release candiates, for example:
    //   1.2.3
    //   1.2.3-beta
    //   1.2.3-RC1
    std::string version_regex = "[0-9]+[.][0-9]+[.][0-9]+(-[A-Za-z0-9]+)?";
    EXPECT_THAT(Version::kTinkVersion, testing::MatchesRegex(version_regex));
  }
  
  }  // namespace
  }  // namespace tink
  }  // namespace crypto
  