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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include <string_view>
#include "base/check.h"
#include "base/check_deref.h"
#include "base/scoped_observation.h"
#include "base/strings/stringprintf.h"
#include "base/task/current_thread.h"
#include "base/test/test_future.h"
#include "chrome/browser/ash/accessibility/accessibility_manager.h"
#include "chrome/browser/ash/app_mode/kiosk_chrome_app_manager.h"
#include "chrome/browser/ash/app_mode/kiosk_controller.h"
#include "chrome/browser/ash/app_mode/test/kiosk_mixin.h"
#include "chrome/browser/ash/app_mode/test/kiosk_test_utils.h"
#include "chrome/browser/ash/login/app_mode/network_ui_controller.h"
#include "chrome/browser/ash/login/users/fake_chrome_user_manager.h"
#include "chrome/browser/ash/settings/scoped_cros_settings_test_helper.h"
#include "chrome/browser/chromeos/app_mode/kiosk_web_app_install_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/signin/identity_manager_factory.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_navigator_params.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/test/base/mixin_based_in_process_browser_test.h"
#include "chromeos/ash/components/settings/cros_settings_provider.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/web_contents.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "extensions/browser/app_window/app_window.h"
#include "extensions/browser/app_window/app_window_registry.h"
#include "extensions/browser/browsertest_util.h"
#include "extensions/browser/extension_host_test_helper.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/extension_registry_observer.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension_id.h"
#include "extensions/test/extension_test_message_listener.h"
#include "extensions/test/result_catcher.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash {
using kiosk::test::CurrentProfile;
using kiosk::test::WaitKioskLaunched;
namespace {
// The key used to store `kTestValue` in `chrome.storage` APIs.
constexpr std::string_view kTestKey = "test_key";
// The value to be stored in `chrome.storage` APIs.
constexpr std::string_view kTestValue = "stored_value";
bool SetInExtensionStorage(Profile& profile,
const extensions::ExtensionId& id,
std::string_view value) {
constexpr std::string_view kOk = "ok";
std::string script = base::StringPrintf(R"(
chrome.storage.local.set(
{%s: '%s'},
() => chrome.test.sendScriptResult('%s'));)",
kTestKey, value, kOk);
auto result = extensions::browsertest_util::ExecuteScriptInBackgroundPage(
&profile, extension_misc::kChromeVoxExtensionId, script);
return result == base::Value(kOk);
}
std::string GetFromExtensionStorage(Profile& profile,
const extensions::ExtensionId& id) {
std::string script = base::StringPrintf(R"(
chrome.storage.local.get(
'%s',
(result) => {
const value = result.%s;
chrome.test.sendScriptResult(value == undefined ? "<none>" : value);
});)",
kTestKey, kTestKey);
auto result = extensions::browsertest_util::ExecuteScriptInBackgroundPage(
&profile, extension_misc::kChromeVoxExtensionId, script);
CHECK(result.is_string()) << "Script result: " << result.DebugString();
return result.GetString();
}
// Helper class to wait until an extension is ready.
class ExtensionReadyWaiter : public extensions::ExtensionRegistryObserver {
public:
ExtensionReadyWaiter(Profile& profile,
const extensions::ExtensionId& extension_id)
: extension_id_(extension_id) {
auto& registry = CHECK_DEREF(extensions::ExtensionRegistry::Get(&profile));
if (registry.ready_extensions().Contains(extension_id)) {
ready_future_.SetValue();
} else {
observation_.Observe(®istry);
}
}
[[nodiscard]] bool Wait() { return ready_future_.Wait(); }
private:
// extensions::ExtensionRegistryObserver:
void OnExtensionReady(content::BrowserContext* browser_context,
const extensions::Extension* extension) override {
if (extension->id() == extension_id_) {
ready_future_.SetValue();
observation_.Reset();
}
}
// The extension ID to wait for.
const extensions::ExtensionId extension_id_;
// The future to be set once the extension is ready.
base::test::TestFuture<void> ready_future_;
base::ScopedObservation<extensions::ExtensionRegistry,
ExtensionRegistryObserver>
observation_{this};
};
bool EnableChromeVoxExtension(Profile& profile) {
AccessibilityManager::Get()->EnableSpokenFeedback(true);
extensions::ExtensionHostTestHelper helper(
&profile, extension_misc::kChromeVoxExtensionId);
return ExtensionReadyWaiter(profile, extension_misc::kChromeVoxExtensionId)
.Wait() &&
helper.WaitForHostCompletedFirstLoad() != nullptr;
}
bool DisableChromeVoxExtension(Profile& profile) {
AccessibilityManager::Get()->EnableSpokenFeedback(false);
auto& registry = CHECK_DEREF(extensions::ExtensionRegistry::Get(&profile));
return base::test::RunUntil([®istry] {
return !registry.ready_extensions().Contains(
extension_misc::kChromeVoxExtensionId);
});
}
} // namespace
// Verifies behavior of accessibility extensions in Kiosk.
class KioskAccessibilityExtensionTest
: public MixinBasedInProcessBrowserTest,
public testing::WithParamInterface<KioskMixin::Config> {
public:
KioskAccessibilityExtensionTest() = default;
KioskAccessibilityExtensionTest(const KioskAccessibilityExtensionTest&) =
delete;
KioskAccessibilityExtensionTest& operator=(
const KioskAccessibilityExtensionTest&) = delete;
~KioskAccessibilityExtensionTest() override = default;
void SetUpOnMainThread() override {
MixinBasedInProcessBrowserTest::SetUpOnMainThread();
ASSERT_TRUE(WaitKioskLaunched());
}
private:
KioskMixin kiosk_{
&mixin_host_,
/*cached_configuration=*/GetParam(),
};
};
IN_PROC_BROWSER_TEST_P(KioskAccessibilityExtensionTest,
KeepsStateOnExtensionRestart) {
auto& profile = CurrentProfile();
ASSERT_TRUE(EnableChromeVoxExtension(profile));
// Set `kTestValue` in storage and verify it is saved.
ASSERT_TRUE(SetInExtensionStorage(
profile, extension_misc::kChromeVoxExtensionId, kTestValue));
EXPECT_EQ(kTestValue, GetFromExtensionStorage(
profile, extension_misc::kChromeVoxExtensionId));
// Disable and re-enable the extension to simulate a restart in-session.
ASSERT_TRUE(DisableChromeVoxExtension(profile));
ASSERT_TRUE(EnableChromeVoxExtension(profile));
// Verify the saved data is still there.
EXPECT_EQ(kTestValue, GetFromExtensionStorage(
profile, extension_misc::kChromeVoxExtensionId));
}
// This test verifies that accessibility extensions do not preserve any local
// data in-between session, as opposed to what they usually do in user sessions.
// See crbug.com/1049566
IN_PROC_BROWSER_TEST_P(KioskAccessibilityExtensionTest,
PRE_ClearsStateOnSessionRestart) {
auto& profile = CurrentProfile();
ASSERT_TRUE(EnableChromeVoxExtension(profile));
// Set `kTestValue` in storage and verify it is saved in the current session.
ASSERT_TRUE(SetInExtensionStorage(
profile, extension_misc::kChromeVoxExtensionId, kTestValue));
EXPECT_EQ(kTestValue, GetFromExtensionStorage(
profile, extension_misc::kChromeVoxExtensionId));
}
IN_PROC_BROWSER_TEST_P(KioskAccessibilityExtensionTest,
ClearsStateOnSessionRestart) {
auto& profile = CurrentProfile();
ASSERT_TRUE(EnableChromeVoxExtension(profile));
// The value set in the PRE test is cleared cleared after a session restart.
EXPECT_EQ("<none>", GetFromExtensionStorage(
profile, extension_misc::kChromeVoxExtensionId));
}
INSTANTIATE_TEST_SUITE_P(
All,
KioskAccessibilityExtensionTest,
testing::ValuesIn(KioskMixin::ConfigsToAutoLaunchEachAppType()),
KioskMixin::ConfigName);
} // namespace ash
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