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

chromeos/process_test.cc

-// 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.
-
-#include <chromeos/process.h>
-#include <chromeos/test_helpers.h>
-
-#include <base/file_util.h>
-#include <gtest/gtest.h>
-
-// This test assumes the following standard binaries are installed.
-static const char kBinBash[] = "/bin/bash";
-static const char kBinCp[] = "/bin/cp";
-static const char kBinEcho[] = "/bin/echo";
-static const char kBinFalse[] = "/bin/false";
-static const char kBinSleep[] = "/bin/sleep";
-
-using chromeos::Process;
-using chromeos::ProcessImpl;
-using chromeos::FindLog;
-using chromeos::GetLog;
-
-TEST(SimpleProcess, Basic) {
-  ProcessImpl process;
-  process.AddArg(kBinEcho);
-  EXPECT_EQ(0, process.Run());
-  EXPECT_EQ("", GetLog());
-}
-
-class ProcessTest : public ::testing::Test {
- public:
-  void SetUp() {
-    test_path_ = FilePath("test");
-    output_file_ = test_path_.Append("fork_out").value();
-    file_util::Delete(test_path_, true);
-    file_util::CreateDirectory(test_path_);
-    process_.RedirectOutput(output_file_);
-    chromeos::ClearLog();
-  }
-
-  void TearDown() {
-    file_util::Delete(test_path_, true);
-  }
-
- protected:
-  void CheckStderrCaptured();
-
-  ProcessImpl process_;
-  std::vector<const char*> args_;
-  std::string output_file_;
-  FilePath test_path_;
-};
-
-TEST_F(ProcessTest, Basic) {
-  process_.AddArg(kBinEcho);
-  process_.AddArg("hello world");
-  EXPECT_EQ(0, process_.Run());
-  ExpectFileEquals("hello world\n", output_file_.c_str());
-  EXPECT_EQ("", GetLog());
-}
-
-TEST_F(ProcessTest, AddStringOption) {
-  process_.AddArg(kBinEcho);
-  process_.AddStringOption("--hello", "world");
-  EXPECT_EQ(0, process_.Run());
-  ExpectFileEquals("--hello world\n", output_file_.c_str());
-}
-
-TEST_F(ProcessTest, AddIntValue) {
-  process_.AddArg(kBinEcho);
-  process_.AddIntOption("--answer", 42);
-  EXPECT_EQ(0, process_.Run());
-  ExpectFileEquals("--answer 42\n", output_file_.c_str());
-}
-
-TEST_F(ProcessTest, NonZeroReturnValue) {
-  process_.AddArg(kBinFalse);
-  EXPECT_EQ(1, process_.Run());
-  ExpectFileEquals("", output_file_.c_str());
-  EXPECT_EQ("", GetLog());
-}
-
-TEST_F(ProcessTest, BadOutputFile) {
-  process_.AddArg(kBinEcho);
-  process_.RedirectOutput("/bad/path");
-  EXPECT_EQ(127, process_.Run());
-}
-
-TEST_F(ProcessTest, ExistingOutputFile) {
-  process_.AddArg(kBinEcho);
-  process_.AddArg("hello world");
-  EXPECT_FALSE(file_util::PathExists(FilePath(output_file_)));
-  EXPECT_EQ(0, process_.Run());
-  EXPECT_TRUE(file_util::PathExists(FilePath(output_file_)));
-  EXPECT_EQ(127, process_.Run());
-}
-
-TEST_F(ProcessTest, BadExecutable) {
-  process_.AddArg("false");
-  EXPECT_EQ(127, process_.Run());
-}
-
-void ProcessTest::CheckStderrCaptured() {
-  std::string contents;
-  process_.AddArg(kBinCp);
-  EXPECT_EQ(1, process_.Run());
-  EXPECT_TRUE(file_util::ReadFileToString(FilePath(output_file_),
-                                                   &contents));
-  EXPECT_NE(std::string::npos, contents.find("missing file operand"));
-  EXPECT_EQ("", GetLog());
-}
-
-TEST_F(ProcessTest, StderrCaptured) {
-  CheckStderrCaptured();
-}
-
-TEST_F(ProcessTest, StderrCapturedWhenPreviouslyClosed) {
-  int saved_stderr = dup(STDERR_FILENO);
-  close(STDERR_FILENO);
-  CheckStderrCaptured();
-  dup2(saved_stderr, STDERR_FILENO);
-}
-
-TEST_F(ProcessTest, NoParams) {
-  EXPECT_EQ(127, process_.Run());
-}
-
-TEST_F(ProcessTest, SegFaultHandling) {
-  process_.AddArg(kBinBash);
-  process_.AddArg("-c");
-  process_.AddArg("kill -SEGV $$");
-  EXPECT_EQ(-1, process_.Run());
-  EXPECT_TRUE(FindLog("did not exit normally: 11"));
-}
-
-TEST_F(ProcessTest, KillNoPid) {
-  process_.Kill(SIGTERM, 0);
-  EXPECT_TRUE(FindLog("Process not running"));
-}
-
-TEST_F(ProcessTest, ProcessExists) {
-  EXPECT_FALSE(Process::ProcessExists(0));
-  EXPECT_TRUE(Process::ProcessExists(1));
-  EXPECT_TRUE(Process::ProcessExists(getpid()));
-}
-
-TEST_F(ProcessTest, ResetPidByFile) {
-  FilePath pid_path = test_path_.Append("pid");
-  EXPECT_FALSE(process_.ResetPidByFile(pid_path.value()));
-  EXPECT_TRUE(file_util::WriteFile(pid_path, "456\n", 4));
-  EXPECT_TRUE(process_.ResetPidByFile(pid_path.value()));
-  EXPECT_EQ(456, process_.pid());
-}
-
-TEST_F(ProcessTest, KillSleeper) {
-  process_.AddArg(kBinSleep);
-  process_.AddArg("10000");
-  ASSERT_TRUE(process_.Start());
-  pid_t pid = process_.pid();
-  ASSERT_GT(pid, 1);
-  EXPECT_TRUE(process_.Kill(SIGTERM, 1));
-  EXPECT_EQ(0, process_.pid());
-}
-
-TEST_F(ProcessTest, Reset) {
-  process_.AddArg(kBinFalse);
-  process_.Reset(0);
-  process_.AddArg(kBinEcho);
-  EXPECT_EQ(0, process_.Run());
-}