tesseract/unittest/log.h

///////////////////////////////////////////////////////////////////////
// File:        log.h
// Description: Include for custom log message for unittest for tesseract.
//              based on
//              https://stackoverflow.com/questions/16491675/how-to-send-custom-message-in-google-c-testing-framework
//
// 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.
///////////////////////////////////////////////////////////////////////

#ifndef TESSERACT_UNITTEST_LOG_H_
#define TESSERACT_UNITTEST_LOG_H_

#include <iostream>

enum LogLevel {
  INFO, ERROR
};

static inline std::ostream& LOG(enum LogLevel level)
{
  switch (level) {
#if 0
    case DEBUG:
      std::cout << "[DEBUG] ";
      break;
#endif
    case INFO:
      std::cout << "[INFO]  ";
      break;
    case ERROR:
      std::cout << "[ERROR] ";
      break;
  }
  return std::cout;
}

// https://github.com/google/ion/blob/master/ion/base/logging.h
static inline std::ostream& QCHECK(bool condition)
{
  static std::ostream null_stream(nullptr);
  if (condition) {
    return std::cout;
  }
  return null_stream;
}

#endif  // TESSERACT_UNITTEST_LOG_H_