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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc.
// http://code.google.com/p/protobuf/
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Author: kenton@google.com (Kenton Varda)
// emulates google3/testing/base/public/googletest.cc
#include <google/protobuf/testing/googletest.h>
#include <google/protobuf/testing/file.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 <io.h>
#include <direct.h>
#else
#include <unistd.h>
#endif
#include <stdio.h>
#include <fcntl.h>
namespace google {
namespace protobuf {
#ifdef _WIN32
#define mkdir(name, mode) mkdir(name)
#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
string TestSourceDir() {
#ifdef _MSC_VER
// Look for the "src" directory.
string prefix = ".";
while (!File::Exists(prefix + "/src/google/protobuf")) {
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";
#else
// automake sets the "srcdir" environment variable.
char* result = getenv("srcdir");
if (result == NULL) {
// Otherwise, the test must be run from the source directory.
return ".";
} else {
return result;
}
#endif
}
namespace {
string GetTemporaryDirectoryName() {
// 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.
string result = tmpnam(NULL);
#ifdef _WIN32
// 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);
}
#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);
}
}
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:
string name_;
};
TempDirDeleter temp_dir_deleter_;
} // namespace
string TestTempDir() {
return temp_dir_deleter_.GetTempDir();
}
static string stderr_capture_filename_;
static int original_stderr_ = -1;
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);
}
string GetCapturedTestStderr() {
GOOGLE_CHECK_NE(original_stderr_, -1) << "Not capturing.";
close(2);
dup2(original_stderr_, 2);
original_stderr_ = -1;
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 vector<string>& ScopedMemoryLog::GetMessages(LogLevel dummy) const {
GOOGLE_CHECK_EQ(dummy, ERROR);
return messages_;
}
void ScopedMemoryLog::HandleLog(LogLevel level, const char* filename,
int line, const string& message) {
GOOGLE_CHECK(active_log_ != NULL);
if (level == ERROR) {
active_log_->messages_.push_back(message);
}
}
} // namespace protobuf
} // namespace google
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