protobuf/src/google/protobuf/testing/googletest.h

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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.  All rights reserved.
// https://developers.google.com/protocol-buffers/
//
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// modification, are permitted provided that the following conditions are
// met:
//
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// notice, this list of conditions and the following disclaimer.
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// in the documentation and/or other materials provided with the
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
// Author: kenton@google.com (Kenton Varda)
// emulates google3/testing/base/public/googletest.h
 
#ifndef GOOGLE_PROTOBUF_GOOGLETEST_H__
#define GOOGLE_PROTOBUF_GOOGLETEST_H__
 
#include <map>
#include <vector>
#include <google/protobuf/stubs/common.h>
#include <google/protobuf/stubs/logging.h>
#include <gmock/gmock.h>
// Disable death tests if we use exceptions in CHECK().
#if !PROTOBUF_USE_EXCEPTIONS && defined(GTEST_HAS_DEATH_TEST) && \
    !GTEST_OS_WINDOWS
#define PROTOBUF_HAS_DEATH_TEST
#endif
 
namespace google {
namespace protobuf {
 
// When running unittests, get the directory containing the source code.
std::string TestSourceDir();
 
// When running unittests, get a directory where temporary files may be
// placed.
std::string TestTempDir();
 
// Capture all text written to stdout or stderr.
void CaptureTestStdout();
void CaptureTestStderr();
 
// Stop capturing stdout or stderr and return the text captured.
std::string GetCapturedTestStdout();
std::string GetCapturedTestStderr();
 
// For use with ScopedMemoryLog::GetMessages().  Inside Google the LogLevel
// constants don't have the LOGLEVEL_ prefix, so the code that used
// ScopedMemoryLog refers to LOGLEVEL_ERROR as just ERROR.
#undef ERROR  // defend against promiscuous windows.h
static const LogLevel ERROR = LOGLEVEL_ERROR;
static const LogLevel WARNING = LOGLEVEL_WARNING;
 
// Receives copies of all LOG(ERROR) messages while in scope.  Sample usage:
//   {
//     ScopedMemoryLog log;  // constructor registers object as a log sink
//     SomeRoutineThatMayLogMessages();
//     const vector<string>& warnings = log.GetMessages(ERROR);
//   }  // destructor unregisters object as a log sink
// This is a dummy implementation which covers only what is used by protocol
// buffer unit tests.
class ScopedMemoryLog {
 public:
  ScopedMemoryLog();
  virtual ~ScopedMemoryLog();
 
  // Fetches all messages with the given severity level.
  const std::vector<std::string>& GetMessages(LogLevel error);
 
 private:
  std::map<LogLevel, std::vector<std::string> > messages_;
  LogHandler* old_handler_;
 
  static void HandleLog(LogLevel level, const char* filename, int line,
                        const std::string& message);
 
  static ScopedMemoryLog* active_log_;
 
  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ScopedMemoryLog);
};
 
}  // namespace protobuf
}  // namespace google
 
#endif  // GOOGLE_PROTOBUF_GOOGLETEST_H__