1// Protocol Buffers - Google's data interchange format
2// Copyright 2008 Google Inc.  All rights reserved.
3// http://code.google.com/p/protobuf/
4//
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6// modification, are permitted provided that the following conditions are
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8//
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13// in the documentation and/or other materials provided with the
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18//
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29// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30
31// Author: kenton@google.com (Kenton Varda)
32// emulates google3/testing/base/public/googletest.h
33
34#ifndef GOOGLE_PROTOBUF_GOOGLETEST_H__
35#define GOOGLE_PROTOBUF_GOOGLETEST_H__
36
37#include <map>
38#include <vector>
39#include <google/protobuf/stubs/common.h>
40
41// Disable death tests if we use exceptions in CHECK().
42#if !PROTOBUF_USE_EXCEPTIONS && defined(GTEST_HAS_DEATH_TEST)
43#define PROTOBUF_HAS_DEATH_TEST
44#endif
45
46namespace google {
47namespace protobuf {
48
49// When running unittests, get the directory containing the source code.
50string TestSourceDir();
51
52// When running unittests, get a directory where temporary files may be
53// placed.
54string TestTempDir();
55
56// Capture all text written to stdout or stderr.
57void CaptureTestStdout();
58void CaptureTestStderr();
59
60// Stop capturing stdout or stderr and return the text captured.
61string GetCapturedTestStdout();
62string GetCapturedTestStderr();
63
64// For use with ScopedMemoryLog::GetMessages().  Inside Google the LogLevel
65// constants don't have the LOGLEVEL_ prefix, so the code that used
66// ScopedMemoryLog refers to LOGLEVEL_ERROR as just ERROR.
67#undef ERROR  // defend against promiscuous windows.h
68static const LogLevel ERROR = LOGLEVEL_ERROR;
69static const LogLevel WARNING = LOGLEVEL_WARNING;
70
71// Receives copies of all LOG(ERROR) messages while in scope.  Sample usage:
72//   {
73//     ScopedMemoryLog log;  // constructor registers object as a log sink
74//     SomeRoutineThatMayLogMessages();
75//     const vector<string>& warnings = log.GetMessages(ERROR);
76//   }  // destructor unregisters object as a log sink
77// This is a dummy implementation which covers only what is used by protocol
78// buffer unit tests.
79class ScopedMemoryLog {
80 public:
81  ScopedMemoryLog();
82  virtual ~ScopedMemoryLog();
83
84  // Fetches all messages with the given severity level.
85  const vector<string>& GetMessages(LogLevel error);
86
87 private:
88  map<LogLevel, vector<string> > messages_;
89  LogHandler* old_handler_;
90
91  static void HandleLog(LogLevel level, const char* filename, int line,
92                        const string& message);
93
94  static ScopedMemoryLog* active_log_;
95
96  GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ScopedMemoryLog);
97};
98
99}  // namespace protobuf
100}  // namespace google
101
102#endif  // GOOGLE_PROTOBUF_GOOGLETEST_H__
103