Implement a way to run each interactive UI test isolated

chrome/test/browser/browser_test_launcher_in_proc.cc

-// Copyright (c) 2009 The Chromium 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 <string>
-
-#include "base/at_exit.h"
-#include "base/command_line.h"
-#include "base/file_path.h"
-#include "base/file_util.h"
-#include "base/logging.h"
-#include "base/native_library.h"
-#include "base/path_service.h"
-#include "base/process_util.h"
-#include "base/string_util.h"
-
-#include "chrome/test/browser/browser_test_runner.h"
-
-// This version of the browser test launcher loads a dynamic library containing
-// the tests and executes the them in that library. When the test has been run
-// the library is unloaded, to ensure atexit handlers are run and static
-// initializers will be run again for the next test.
-
-namespace {
-
-const wchar_t* const kBrowserTesLibBaseName = L"browser_tests";
-const wchar_t* const kGTestListTestsFlag = L"gtest_list_tests";
-
-class InProcBrowserTestRunner : public browser_tests::BrowserTestRunner {
- public:
-  InProcBrowserTestRunner() : dynamic_lib_(NULL), run_test_proc_(NULL) {
-  }
-
-  ~InProcBrowserTestRunner() {
-    if (!dynamic_lib_)
-      return;
-    base::UnloadNativeLibrary(dynamic_lib_);
-    LOG(INFO) << "Unloaded " <<
-        base::GetNativeLibraryName(kBrowserTesLibBaseName);
-  }
-
-  bool Init() {
-    FilePath lib_path;
-    CHECK(PathService::Get(base::FILE_EXE, &lib_path));
-    lib_path = lib_path.DirName().Append(
-        base::GetNativeLibraryName(kBrowserTesLibBaseName));
-
-    LOG(INFO) << "Loading '" <<  lib_path.value() << "'";
-
-    dynamic_lib_ = base::LoadNativeLibrary(lib_path);
-    if (!dynamic_lib_) {
-      LOG(ERROR) << "Failed to load " << lib_path.value();
-      return false;
-    }
-
-    run_test_proc_ = reinterpret_cast<RunTestProc>(
-        base::GetFunctionPointerFromNativeLibrary(dynamic_lib_, "RunTests"));
-    if (!run_test_proc_) {
-      LOG(ERROR) <<
-          "Failed to find RunTest function in " << lib_path.value();
-      return false;
-    }
-
-    return true;
-  }
-
-  // Returns true if the test succeeded, false if it failed.
-  bool RunTest(const std::string& test_name) {
-    std::string filter_flag = StringPrintf("--gtest_filter=%s",
-                                           test_name.c_str());
-    char* argv[3];
-    argv[0] = const_cast<char*>("");
-    argv[1] = const_cast<char*>(filter_flag.c_str());
-    // Always enable disabled tests.  This method is not called with disabled
-    // tests unless this flag was specified to the browser test executable.
-    argv[2] = "--gtest_also_run_disabled_tests";
-    return RunAsIs(3, argv) == 0;
-  }
-
-  // Calls-in to GTest with the arguments we were started with.
-  int RunAsIs(int argc, char** argv) {
-    return (run_test_proc_)(argc, argv);
-  }
-
- private:
-  typedef int (CDECL *RunTestProc)(int, char**);
-
-  base::NativeLibrary dynamic_lib_;
-  RunTestProc run_test_proc_;
-
-  DISALLOW_COPY_AND_ASSIGN(InProcBrowserTestRunner);
-};
-
-class InProcBrowserTestRunnerFactory
-    : public browser_tests::BrowserTestRunnerFactory {
- public:
-  InProcBrowserTestRunnerFactory() { }
-
-  virtual browser_tests::BrowserTestRunner* CreateBrowserTestRunner() const {
-    return new InProcBrowserTestRunner();
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(InProcBrowserTestRunnerFactory);
-};
-
-}  // namespace
-
-int main(int argc, char** argv) {
-  base::AtExitManager at_exit_manager;
-
-  CommandLine::Init(argc, argv);
-  const CommandLine* command_line = CommandLine::ForCurrentProcess();
-
-  if (command_line->HasSwitch(kGTestListTestsFlag)) {
-    InProcBrowserTestRunner test_runner;
-    if (!test_runner.Init())
-      return 1;
-    return test_runner.RunAsIs(argc, argv);
-  }
-
-  InProcBrowserTestRunnerFactory test_runner_factory;
-  return browser_tests::RunTests(test_runner_factory) ? 0 : 1;
-}