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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// Author: [email protected] (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>

// Disable death tests if we use exceptions in CHECK().
#if !PROTOBUF_USE_EXCEPTIONS && defined(GTEST_HAS_DEATH_TEST)
#define PROTOBUF_HAS_DEATH_TEST
#endif

namespace google {
namespace protobuf {

// When running unittests, get the directory containing the source code.
string TestSourceDir();

// When running unittests, get a directory where temporary files may be
// placed.
string TestTempDir();

// Capture all text written to stdout or stderr.
void CaptureTestStdout();
void CaptureTestStderr();

// Stop capturing stdout or stderr and return the text captured.
string GetCapturedTestStdout();
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 vector<string>& GetMessages(LogLevel error);

 private:
 map<LogLevel, vector<string> > messages_;
 LogHandler* old_handler_;

 static void HandleLog(LogLevel level, const char* filename, int line,
 const string& message);

 static ScopedMemoryLog* active_log_;

 GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ScopedMemoryLog);
};

} // namespace protobuf
} // namespace google

#endif // GOOGLE_PROTOBUF_GOOGLETEST_H__