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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/test/base/test_launcher_utils.h"
#include <memory>
#include "base/command_line.h"
#include "base/environment.h"
#include "base/feature_list.h"
#include "base/files/scoped_temp_dir.h"
#include "base/logging.h"
#include "base/path_service.h"
#include "base/strings/string_number_conversions.h"
#include "build/build_config.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/url_constants.h"
#include "components/os_crypt/sync/os_crypt_switches.h"
#include "components/password_manager/core/browser/password_manager_switches.h"
#include "content/public/common/content_switches.h"
#include "ui/display/display_switches.h"
#if defined(USE_AURA)
#include "ui/wm/core/wm_core_switches.h"
#endif
namespace test_launcher_utils {
void PrepareBrowserCommandLineForTests(base::CommandLine* command_line) {
// Don't show the first run ui and disable the default browser check.
command_line->AppendSwitch(switches::kNoFirstRun);
// Enable info level logging to stderr by default so that we can see when bad
// stuff happens, but honor the flags specified from the command line. Use the
// default logging level (INFO) instead of explicitly passing
// switches::kLoggingLevel. Passing the switch explicitly resulted in data
// races in tests that start async operations (that use logging) prior to
// initializing the browser: https://crbug.com/749066.
if (!command_line->HasSwitch(switches::kEnableLogging))
command_line->AppendSwitchASCII(switches::kEnableLogging, "stderr");
// Don't install default apps.
command_line->AppendSwitch(switches::kDisableDefaultApps);
#if defined(USE_AURA)
// Disable window animations under Ash as the animations effect the
// coordinates returned and result in flake.
command_line->AppendSwitch(
wm::switches::kWindowAnimationsDisabled);
#endif
#if BUILDFLAG(IS_LINUX)
// Don't use the native password stores on Linux since they may
// prompt for additional UI during tests and cause test failures or
// timeouts. Win, Mac and ChromeOS don't look at the kPasswordStore
// switch.
if (!command_line->HasSwitch(password_manager::kPasswordStore)) {
command_line->AppendSwitchASCII(password_manager::kPasswordStore, "basic");
}
#endif
#if BUILDFLAG(IS_MAC)
// Use mock keychain on mac to prevent blocking permissions dialogs.
command_line->AppendSwitch(os_crypt::switches::kUseMockKeychain);
#endif
command_line->AppendSwitch(switches::kDisableComponentUpdate);
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
// Changing the stack canary means we need to disable the stack guard on all
// functions that appear as ancestors in the call stack of RunZygote(). This
// is infeasible for tests, and changing the stack canary is unnecessary for
// tests as it is a security mitigation.
command_line->AppendSwitchASCII(switches::kChangeStackGuardOnFork,
switches::kChangeStackGuardOnForkDisabled);
#endif
}
void PrepareBrowserCommandLineForBrowserTests(base::CommandLine* command_line,
bool open_about_blank_on_launch) {
// This is a Browser test.
command_line->AppendSwitchASCII(switches::kTestType, "browser");
if (open_about_blank_on_launch && command_line->GetArgs().empty())
command_line->AppendArg(url::kAboutBlankURL);
}
bool CreateUserDataDir(base::ScopedTempDir* temp_dir) {
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
base::FilePath user_data_dir =
command_line->GetSwitchValuePath(switches::kUserDataDir);
if (user_data_dir.empty()) {
DCHECK(temp_dir);
if (temp_dir->CreateUniqueTempDir() && temp_dir->IsValid()) {
user_data_dir = temp_dir->GetPath();
} else {
LOG(ERROR) << "Could not create temporary user data directory \""
<< temp_dir->GetPath().value() << "\".";
return false;
}
}
return OverrideUserDataDir(user_data_dir);
}
bool OverrideUserDataDir(const base::FilePath& user_data_dir) {
bool success = true;
// base::PathService::Override() is the best way to change the user data
// directory. This matches what is done in ChromeMain().
success = base::PathService::Override(chrome::DIR_USER_DATA, user_data_dir);
#if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_MAC)
// Make sure the cache directory is inside our clear profile. Otherwise
// the cache may contain data from earlier tests that could break the
// current test.
//
// Note: we use an environment variable here, because we have to pass the
// value to the child process. This is the simplest way to do it.
std::unique_ptr<base::Environment> env(base::Environment::Create());
success = success && env->SetVar("XDG_CACHE_HOME", user_data_dir.value());
// Also make sure that the machine policy directory is inside the clear
// profile. Otherwise the machine's policies could affect tests.
base::FilePath policy_files = user_data_dir.AppendASCII("policies");
success = success &&
base::PathService::Override(chrome::DIR_POLICY_FILES, policy_files);
#endif
return success;
}
} // namespace test_launcher_utils
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