// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Author: [email protected] (Kenton Varda)
// emulates google3/testing/base/public/googletest.cc
#include <google/protobuf/testing/googletest.h>
#include <google/protobuf/testing/file.h>
#include <google/protobuf/io/io_win32.h>
#include <google/protobuf/stubs/strutil.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <errno.h>
#include <stdlib.h>
#ifdef _MSC_VER
// #include <direct.h>
#else
#include <unistd.h>
#endif
#include <stdio.h>
#include <fcntl.h>
#include <iostream>
#include <fstream>
namespace google {
namespace protobuf {
#ifdef _WIN32
// DO NOT include <io.h>, instead create functions in io_win32.{h,cc} and import
// them like we do below.
using google::protobuf::io::win32::close;
using google::protobuf::io::win32::dup2;
using google::protobuf::io::win32::dup;
using google::protobuf::io::win32::mkdir;
using google::protobuf::io::win32::open;
#endif
#ifndef O_BINARY
#ifdef _O_BINARY
#define O_BINARY _O_BINARY
#else
#define O_BINARY 0 // If this isn't defined, the platform doesn't need it.
#endif
#endif
std::string TestSourceDir() {
#ifndef GOOGLE_THIRD_PARTY_PROTOBUF
#ifdef GOOGLE_PROTOBUF_TEST_SOURCE_PATH
return GOOGLE_PROTOBUF_TEST_SOURCE_PATH;
#else
#ifndef _MSC_VER
// automake sets the "srcdir" environment variable.
char* result = getenv("srcdir");
if (result != NULL) {
return result;
}
#endif // _MSC_VER
// Look for the "src" directory.
std::string prefix = ".";
// Keep looking further up the directory tree until we find
// src/.../descriptor.cc. It is important to look for a particular file,
// keeping in mind that with Bazel builds the directory structure under
// bazel-bin/ looks similar to the main directory tree in the Git repo.
while (!File::Exists(prefix + "/src/google/protobuf/descriptor.cc")) {
if (!File::Exists(prefix)) {
GOOGLE_LOG(FATAL)
<< "Could not find protobuf source code. Please run tests from "
"somewhere within the protobuf source package.";
}
prefix += "/..";
}
return prefix + "/src";
#endif // GOOGLE_PROTOBUF_TEST_SOURCE_PATH
#else
return "third_party/protobuf/src";
#endif // GOOGLE_THIRD_PARTY_PROTOBUF
}
namespace {
std::string GetTemporaryDirectoryName() {
// Tests run under Bazel "should not" use /tmp. Bazel sets this environment
// variable for tests to use instead.
char *from_environment = getenv("TEST_TMPDIR");
if (from_environment != NULL && from_environment[0] != '\0') {
return std::string(from_environment) + "/protobuf_tmpdir";
}
// tmpnam() is generally not considered safe but we're only using it for
// testing. We cannot use tmpfile() or mkstemp() since we're creating a
// directory.
char b[L_tmpnam + 1]; // HPUX multithread return 0 if s is 0
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
std::string result = tmpnam(b);
#pragma GCC diagnostic pop
#ifdef _WIN32
// Avoid a trailing dot by changing it to an underscore. On Win32 the names of
// files and directories can, but should not, end with dot.
//
// In MS-DOS and FAT16 filesystem the filenames were 8dot3 style so it didn't
// make sense to have a name ending in dot without an extension, so the shell
// silently ignored trailing dots. To this day the Win32 API still maintains
// this behavior and silently ignores trailing dots in path arguments of
// functions such as CreateFile{A,W}. Even POSIX API function implementations
// seem to wrap the Win32 API functions (e.g. CreateDirectoryA) and behave
// this way.
// It's possible to avoid this behavior and create files / directories with
// trailing dots (using CreateFileW / CreateDirectoryW and prefixing the path
// with "\\?\") but these will be degenerate in the sense that you cannot
// chdir into such directories (or navigate into them with Windows Explorer)
// nor can you open such files with some programs (e.g. Notepad).
if (result[result.size() - 1] == '.') {
result[result.size() - 1] = '_';
}
// On Win32, tmpnam() returns a file prefixed with '\', but which is supposed
// to be used in the current working directory. WTF?
if (HasPrefixString(result, "\\")) {
result.erase(0, 1);
}
// The Win32 API accepts forward slashes as a path delimiter as long as the
// path doesn't use the "\\?\" prefix.
// Let's avoid confusion and use only forward slashes.
result = StringReplace(result, "\\", "/", true);
#endif // _WIN32
return result;
}
// Creates a temporary directory on demand and deletes it when the process
// quits.
class TempDirDeleter {
public:
TempDirDeleter() {}
~TempDirDeleter() {
if (!name_.empty()) {
File::DeleteRecursively(name_, NULL, NULL);
}
}
std::string GetTempDir() {
if (name_.empty()) {
name_ = GetTemporaryDirectoryName();
GOOGLE_CHECK(mkdir(name_.c_str(), 0777) == 0) << strerror(errno);
// Stick a file in the directory that tells people what this is, in case
// we abort and don't get a chance to delete it.
File::WriteStringToFileOrDie("", name_ + "/TEMP_DIR_FOR_PROTOBUF_TESTS");
}
return name_;
}
private:
std::string name_;
};
TempDirDeleter temp_dir_deleter_;
} // namespace
std::string TestTempDir() { return temp_dir_deleter_.GetTempDir(); }
// TODO(kenton): Share duplicated code below. Too busy/lazy for now.
static std::string stdout_capture_filename_;
static std::string stderr_capture_filename_;
static int original_stdout_ = -1;
static int original_stderr_ = -1;
void CaptureTestStdout() {
GOOGLE_CHECK_EQ(original_stdout_, -1) << "Already capturing.";
stdout_capture_filename_ = TestTempDir() + "/captured_stdout";
int fd = open(stdout_capture_filename_.c_str(),
O_WRONLY | O_CREAT | O_EXCL | O_BINARY, 0777);
GOOGLE_CHECK(fd >= 0) << "open: " << strerror(errno);
original_stdout_ = dup(1);
close(1);
dup2(fd, 1);
close(fd);
}
void CaptureTestStderr() {
GOOGLE_CHECK_EQ(original_stderr_, -1) << "Already capturing.";
stderr_capture_filename_ = TestTempDir() + "/captured_stderr";
int fd = open(stderr_capture_filename_.c_str(),
O_WRONLY | O_CREAT | O_EXCL | O_BINARY, 0777);
GOOGLE_CHECK(fd >= 0) << "open: " << strerror(errno);
original_stderr_ = dup(2);
close(2);
dup2(fd, 2);
close(fd);
}
std::string GetCapturedTestStdout() {
GOOGLE_CHECK_NE(original_stdout_, -1) << "Not capturing.";
close(1);
dup2(original_stdout_, 1);
original_stdout_ = -1;
std::string result;
File::ReadFileToStringOrDie(stdout_capture_filename_, &result);
remove(stdout_capture_filename_.c_str());
return result;
}
std::string GetCapturedTestStderr() {
GOOGLE_CHECK_NE(original_stderr_, -1) << "Not capturing.";
close(2);
dup2(original_stderr_, 2);
original_stderr_ = -1;
std::string result;
File::ReadFileToStringOrDie(stderr_capture_filename_, &result);
remove(stderr_capture_filename_.c_str());
return result;
}
ScopedMemoryLog* ScopedMemoryLog::active_log_ = NULL;
ScopedMemoryLog::ScopedMemoryLog() {
GOOGLE_CHECK(active_log_ == NULL);
active_log_ = this;
old_handler_ = SetLogHandler(&HandleLog);
}
ScopedMemoryLog::~ScopedMemoryLog() {
SetLogHandler(old_handler_);
active_log_ = NULL;
}
const std::vector<std::string>& ScopedMemoryLog::GetMessages(LogLevel level) {
GOOGLE_CHECK(level == ERROR ||
level == WARNING);
return messages_[level];
}
void ScopedMemoryLog::HandleLog(LogLevel level, const char* filename, int line,
const std::string& message) {
GOOGLE_CHECK(active_log_ != NULL);
if (level == ERROR || level == WARNING) {
active_log_->messages_[level].push_back(message);
}
}
namespace {
// Force shutdown at process exit so that we can test for memory leaks. To
// actually check for leaks, I suggest using the heap checker included with
// google-perftools. Set it to "draconian" mode to ensure that every last
// call to malloc() has a corresponding free().
struct ForceShutdown {
~ForceShutdown() {
ShutdownProtobufLibrary();
// Test to shutdown the library twice, which should succeed.
ShutdownProtobufLibrary();
}
} force_shutdown;
} // namespace
} // namespace protobuf
} // namespace google
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