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+// 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: kenton@google.com (Kenton Varda)
+// emulates google3/testing/base/public/googletest.cc
+
+#include <testing/googletest.h>
+#include <testing/file.h>
+#include <io/io_win32.h>
+#include <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