libchromeos: add process control library, syslog logging capability, and run unit tests

chromeos/test_helpers.h

+// Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef _CHROMEOS_TEST_HELPERS_H_
+#define _CHROMEOS_TEST_HELPERS_H_
+
+#include "gtest/gtest.h"
+
+#include <string>
+
+#include <base/command_line.h>
+#include <base/file_util.h>
+#include <base/logging.h>
+#include <chromeos/syslog_logging.h>
+
+inline void ExpectFileEquals(const char* golden,
+                             const char* file_path) {
+  std::string contents;
+  EXPECT_TRUE(file_util::ReadFileToString(FilePath(file_path),
+                                          &contents));
+  EXPECT_EQ(golden, contents);
+}
+
+inline void SetUpTests(int *argc, char** argv, bool log_to_stderr) {
+  CommandLine::Init(*argc, argv);
+  ::chromeos::InitLog(log_to_stderr ? chromeos::kLogToStderr : 0);
+  ::chromeos::LogToString(true);
+  ::testing::InitGoogleTest(argc, argv);
+}
+
+#endif  // _CHROMEOS_TEST_HELPERS_H_