tests/unit/screen_ui_test.cpp - android_bootable_recovery - Gitiles

 /*
  * Copyright (C) 2018 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #include <stddef.h>
 #include <stdio.h>

 #include <functional>
 #include <map>
 #include <memory>
 #include <string>
 #include <vector>

 #include <android-base/logging.h>
 #include <android-base/stringprintf.h>
 #include <android-base/test_utils.h>
 #include <gtest/gtest.h>

 #include "common/test_constants.h"
 #include "device.h"
 #include "minui/minui.h"
 #include "otautil/paths.h"
 #include "private/resources.h"
 #include "screen_ui.h"

 static const std::vector<std::string> HEADERS{ "header" };
 static const std::vector<std::string> ITEMS{ "item1", "item2", "item3", "item4", "1234567890" };

 TEST(ScreenUITest, StartPhoneMenuSmoke) {
   Menu menu(false, 10, 20, HEADERS, ITEMS, 0);
   ASSERT_FALSE(menu.scrollable());
   ASSERT_EQ(HEADERS[0], menu.text_headers()[0]);
   ASSERT_EQ(5u, menu.ItemsCount());

   std::string message;
   ASSERT_FALSE(menu.ItemsOverflow(&message));
   for (size_t i = 0; i < menu.ItemsCount(); i++) {
     ASSERT_EQ(ITEMS[i], menu.TextItem(i));
   }

   ASSERT_EQ(0, menu.selection());
 }

 TEST(ScreenUITest, StartWearMenuSmoke) {
   Menu menu(true, 10, 8, HEADERS, ITEMS, 1);
   ASSERT_TRUE(menu.scrollable());
   ASSERT_EQ(HEADERS[0], menu.text_headers()[0]);
   ASSERT_EQ(5u, menu.ItemsCount());

   std::string message;
   ASSERT_FALSE(menu.ItemsOverflow(&message));
   for (size_t i = 0; i < menu.ItemsCount() - 1; i++) {
     ASSERT_EQ(ITEMS[i], menu.TextItem(i));
   }
   // Test of the last item is truncated
   ASSERT_EQ("12345678", menu.TextItem(4));
   ASSERT_EQ(1, menu.selection());
 }

 TEST(ScreenUITest, StartPhoneMenuItemsOverflow) {
   Menu menu(false, 1, 20, HEADERS, ITEMS, 0);
   ASSERT_FALSE(menu.scrollable());
   ASSERT_EQ(1u, menu.ItemsCount());

   std::string message;
   ASSERT_FALSE(menu.ItemsOverflow(&message));
   for (size_t i = 0; i < menu.ItemsCount(); i++) {
     ASSERT_EQ(ITEMS[i], menu.TextItem(i));
   }

   ASSERT_EQ(0u, menu.MenuStart());
   ASSERT_EQ(1u, menu.MenuEnd());
 }

 TEST(ScreenUITest, StartWearMenuItemsOverflow) {
   Menu menu(true, 1, 20, HEADERS, ITEMS, 0);
   ASSERT_TRUE(menu.scrollable());
   ASSERT_EQ(5u, menu.ItemsCount());

   std::string message;
   ASSERT_TRUE(menu.ItemsOverflow(&message));
   ASSERT_EQ("Current item: 1/5", message);

   for (size_t i = 0; i < menu.ItemsCount(); i++) {
     ASSERT_EQ(ITEMS[i], menu.TextItem(i));
   }

   ASSERT_EQ(0u, menu.MenuStart());
   ASSERT_EQ(1u, menu.MenuEnd());
 }

 TEST(ScreenUITest, PhoneMenuSelectSmoke) {
   int sel = 0;
   Menu menu(false, 10, 20, HEADERS, ITEMS, sel);
   // Mimic down button 10 times (2 * items size)
   for (int i = 0; i < 10; i++) {
     sel = menu.Select(++sel);
     ASSERT_EQ(sel, menu.selection());

     // Wraps the selection for unscrollable menu when it reaches the boundary.
     int expected = (i + 1) % 5;
     ASSERT_EQ(expected, menu.selection());

     ASSERT_EQ(0u, menu.MenuStart());
     ASSERT_EQ(5u, menu.MenuEnd());
   }

   // Mimic up button 10 times
   for (int i = 0; i < 10; i++) {
     sel = menu.Select(--sel);
     ASSERT_EQ(sel, menu.selection());

     int expected = (9 - i) % 5;
     ASSERT_EQ(expected, menu.selection());

     ASSERT_EQ(0u, menu.MenuStart());
     ASSERT_EQ(5u, menu.MenuEnd());
   }
 }

 TEST(ScreenUITest, WearMenuSelectSmoke) {
   int sel = 0;
   Menu menu(true, 10, 20, HEADERS, ITEMS, sel);
   // Mimic pressing down button 10 times (2 * items size)
   for (int i = 0; i < 10; i++) {
     sel = menu.Select(++sel);
     ASSERT_EQ(sel, menu.selection());

     // Stops the selection at the boundary if the menu is scrollable.
     int expected = std::min(i + 1, 4);
     ASSERT_EQ(expected, menu.selection());

     ASSERT_EQ(0u, menu.MenuStart());
     ASSERT_EQ(5u, menu.MenuEnd());
   }

   // Mimic pressing up button 10 times
   for (int i = 0; i < 10; i++) {
     sel = menu.Select(--sel);
     ASSERT_EQ(sel, menu.selection());

     int expected = std::max(3 - i, 0);
     ASSERT_EQ(expected, menu.selection());

     ASSERT_EQ(0u, menu.MenuStart());
     ASSERT_EQ(5u, menu.MenuEnd());
   }
 }

 TEST(ScreenUITest, WearMenuSelectItemsOverflow) {
   int sel = 1;
   Menu menu(true, 3, 20, HEADERS, ITEMS, sel);
   ASSERT_EQ(5u, menu.ItemsCount());

   // Scroll the menu to the end, and check the start & end of menu.
   for (int i = 0; i < 3; i++) {
     sel = menu.Select(++sel);
     ASSERT_EQ(i + 2, sel);
     ASSERT_EQ(static_cast<size_t>(i), menu.MenuStart());
     ASSERT_EQ(static_cast<size_t>(i + 3), menu.MenuEnd());
   }

   // Press down button one more time won't change the MenuStart() and MenuEnd().
   sel = menu.Select(++sel);
   ASSERT_EQ(4, sel);
   ASSERT_EQ(2u, menu.MenuStart());
   ASSERT_EQ(5u, menu.MenuEnd());

   // Scroll the menu to the top.
   // The expected menu sel, start & ends are:
   // sel 3, start 2, end 5
   // sel 2, start 2, end 5
   // sel 1, start 1, end 4
   // sel 0, start 0, end 3
   for (int i = 0; i < 4; i++) {
     sel = menu.Select(--sel);
     ASSERT_EQ(3 - i, sel);
     ASSERT_EQ(static_cast<size_t>(std::min(3 - i, 2)), menu.MenuStart());
     ASSERT_EQ(static_cast<size_t>(std::min(6 - i, 5)), menu.MenuEnd());
   }

   // Press up button one more time won't change the MenuStart() and MenuEnd().
   sel = menu.Select(--sel);
   ASSERT_EQ(0, sel);
   ASSERT_EQ(0u, menu.MenuStart());
   ASSERT_EQ(3u, menu.MenuEnd());
 }

 static constexpr int kMagicAction = 101;

 enum class KeyCode : int {
   TIMEOUT = -1,
   NO_OP = 0,
   UP = 1,
   DOWN = 2,
   ENTER = 3,
   MAGIC = 1001,
   LAST,
 };

 static const std::map<KeyCode, int> kKeyMapping{
   // clang-format off
   { KeyCode::NO_OP, Device::kNoAction },
   { KeyCode::UP, Device::kHighlightUp },
   { KeyCode::DOWN, Device::kHighlightDown },
   { KeyCode::ENTER, Device::kInvokeItem },
   { KeyCode::MAGIC, kMagicAction },
   // clang-format on
 };

 class TestableScreenRecoveryUI : public ScreenRecoveryUI {
  public:
   int WaitKey() override;

   void SetKeyBuffer(const std::vector<KeyCode>& buffer);

   int KeyHandler(int key, bool visible) const;

   // The following functions expose the protected members for test purpose.
   void RunLoadAnimation() {
     LoadAnimation();
   }

   size_t GetLoopFrames() const {
     return loop_frames;
   }

   size_t GetIntroFrames() const {
     return intro_frames;
   }

   bool GetRtlLocale() const {
     return rtl_locale_;
   }

  private:
   std::vector<KeyCode> key_buffer_;
   size_t key_buffer_index_;
 };

 void TestableScreenRecoveryUI::SetKeyBuffer(const std::vector<KeyCode>& buffer) {
   key_buffer_ = buffer;
   key_buffer_index_ = 0;
 }

 int TestableScreenRecoveryUI::KeyHandler(int key, bool) const {
   KeyCode key_code = static_cast<KeyCode>(key);
   if (kKeyMapping.find(key_code) != kKeyMapping.end()) {
     return kKeyMapping.at(key_code);
   }
   return Device::kNoAction;
 }

 int TestableScreenRecoveryUI::WaitKey() {
   CHECK_LT(key_buffer_index_, key_buffer_.size());
   return static_cast<int>(key_buffer_[key_buffer_index_++]);
 }

 class ScreenRecoveryUITest : public ::testing::Test {
  protected:
   const std::string kTestLocale = "en-US";
   const std::string kTestRtlLocale = "ar";
   const std::string kTestRtlLocaleWithSuffix = "ar-EG";

   void SetUp() override {
     has_graphics_ = gr_init() == 0;
     gr_exit();

     if (has_graphics_) {
       ui_ = std::make_unique<TestableScreenRecoveryUI>();
     }

     testdata_dir_ = from_testdata_base("");
     Paths::Get().set_resource_dir(testdata_dir_);
     res_set_resource_dir(testdata_dir_);
   }

   bool has_graphics_;
   std::unique_ptr<TestableScreenRecoveryUI> ui_;
   std::string testdata_dir_;
 };

 #define RETURN_IF_NO_GRAPHICS                                                 \
   do {                                                                        \
     if (!has_graphics_) {                                                     \
       GTEST_LOG_(INFO) << "Test skipped due to no available graphics device"; \
       return;                                                                 \
     }                                                                         \
   } while (false)

 TEST_F(ScreenRecoveryUITest, Init) {
   RETURN_IF_NO_GRAPHICS;

   ASSERT_TRUE(ui_->Init(kTestLocale));
   ASSERT_EQ(kTestLocale, ui_->GetLocale());
   ASSERT_FALSE(ui_->GetRtlLocale());
   ASSERT_FALSE(ui_->IsTextVisible());
   ASSERT_FALSE(ui_->WasTextEverVisible());
 }

 TEST_F(ScreenRecoveryUITest, dtor_NotCallingInit) {
   ui_.reset();
   ASSERT_FALSE(ui_);
 }

 TEST_F(ScreenRecoveryUITest, ShowText) {
   RETURN_IF_NO_GRAPHICS;

   ASSERT_TRUE(ui_->Init(kTestLocale));
   ASSERT_FALSE(ui_->IsTextVisible());
   ui_->ShowText(true);
   ASSERT_TRUE(ui_->IsTextVisible());
   ASSERT_TRUE(ui_->WasTextEverVisible());

   ui_->ShowText(false);
   ASSERT_FALSE(ui_->IsTextVisible());
   ASSERT_TRUE(ui_->WasTextEverVisible());
 }

 TEST_F(ScreenRecoveryUITest, RtlLocale) {
   RETURN_IF_NO_GRAPHICS;

   ASSERT_TRUE(ui_->Init(kTestRtlLocale));
   ASSERT_TRUE(ui_->GetRtlLocale());
 }

 TEST_F(ScreenRecoveryUITest, RtlLocaleWithSuffix) {
   RETURN_IF_NO_GRAPHICS;

   ASSERT_TRUE(ui_->Init(kTestRtlLocaleWithSuffix));
   ASSERT_TRUE(ui_->GetRtlLocale());
 }

 TEST_F(ScreenRecoveryUITest, ShowMenu) {
   RETURN_IF_NO_GRAPHICS;

   ASSERT_TRUE(ui_->Init(kTestLocale));
   ui_->SetKeyBuffer({
       KeyCode::UP,
       KeyCode::DOWN,
       KeyCode::UP,
       KeyCode::DOWN,
       KeyCode::ENTER,
   });
   ASSERT_EQ(3u, ui_->ShowMenu(HEADERS, ITEMS, 3, true,
                               std::bind(&TestableScreenRecoveryUI::KeyHandler, ui_.get(),
                                         std::placeholders::_1, std::placeholders::_2)));

   ui_->SetKeyBuffer({
       KeyCode::UP,
       KeyCode::UP,
       KeyCode::NO_OP,
       KeyCode::NO_OP,
       KeyCode::UP,
       KeyCode::ENTER,
   });
   ASSERT_EQ(2u, ui_->ShowMenu(HEADERS, ITEMS, 0, true,
                               std::bind(&TestableScreenRecoveryUI::KeyHandler, ui_.get(),
                                         std::placeholders::_1, std::placeholders::_2)));
 }

 TEST_F(ScreenRecoveryUITest, ShowMenu_NotMenuOnly) {
   RETURN_IF_NO_GRAPHICS;

   ASSERT_TRUE(ui_->Init(kTestLocale));
   ui_->SetKeyBuffer({
       KeyCode::MAGIC,
   });
   ASSERT_EQ(static_cast<size_t>(kMagicAction),
             ui_->ShowMenu(HEADERS, ITEMS, 3, false,
                           std::bind(&TestableScreenRecoveryUI::KeyHandler, ui_.get(),
                                     std::placeholders::_1, std::placeholders::_2)));
 }

 TEST_F(ScreenRecoveryUITest, ShowMenu_TimedOut) {
   RETURN_IF_NO_GRAPHICS;

   ASSERT_TRUE(ui_->Init(kTestLocale));
   ui_->SetKeyBuffer({
       KeyCode::TIMEOUT,
   });
   ASSERT_EQ(static_cast<size_t>(-1), ui_->ShowMenu(HEADERS, ITEMS, 3, true, nullptr));
 }

 TEST_F(ScreenRecoveryUITest, ShowMenu_TimedOut_TextWasEverVisible) {
   RETURN_IF_NO_GRAPHICS;

   ASSERT_TRUE(ui_->Init(kTestLocale));
   ui_->ShowText(true);
   ui_->ShowText(false);
   ASSERT_TRUE(ui_->WasTextEverVisible());

   ui_->SetKeyBuffer({
       KeyCode::TIMEOUT,
       KeyCode::DOWN,
       KeyCode::ENTER,
   });
   ASSERT_EQ(4u, ui_->ShowMenu(HEADERS, ITEMS, 3, true,
                               std::bind(&TestableScreenRecoveryUI::KeyHandler, ui_.get(),
                                         std::placeholders::_1, std::placeholders::_2)));
 }

 TEST_F(ScreenRecoveryUITest, LoadAnimation) {
   RETURN_IF_NO_GRAPHICS;

   ASSERT_TRUE(ui_->Init(kTestLocale));
   // Make a few copies of loop00000.png from testdata.
   std::string image_data;
   ASSERT_TRUE(android::base::ReadFileToString(testdata_dir_ + "/loop00000.png", &image_data));

   std::vector<std::string> tempfiles;
   TemporaryDir resource_dir;
   for (const auto& name : { "00002", "00100", "00050" }) {
     tempfiles.push_back(android::base::StringPrintf("%s/loop%s.png", resource_dir.path, name));
     ASSERT_TRUE(android::base::WriteStringToFile(image_data, tempfiles.back()));
   }
   for (const auto& name : { "00", "01" }) {
     tempfiles.push_back(android::base::StringPrintf("%s/intro%s.png", resource_dir.path, name));
     ASSERT_TRUE(android::base::WriteStringToFile(image_data, tempfiles.back()));
   }
   Paths::Get().set_resource_dir(resource_dir.path);

   ui_->RunLoadAnimation();

   ASSERT_EQ(2u, ui_->GetIntroFrames());
   ASSERT_EQ(3u, ui_->GetLoopFrames());

   for (const auto& name : tempfiles) {
     ASSERT_EQ(0, unlink(name.c_str()));
   }
 }

 TEST_F(ScreenRecoveryUITest, LoadAnimation_MissingAnimation) {
   RETURN_IF_NO_GRAPHICS;

   ASSERT_TRUE(ui_->Init(kTestLocale));
   TemporaryDir resource_dir;
   Paths::Get().set_resource_dir(resource_dir.path);

   ::testing::FLAGS_gtest_death_test_style = "threadsafe";
   ASSERT_EXIT(ui_->RunLoadAnimation(), ::testing::KilledBySignal(SIGABRT), "");
 }

 #undef RETURN_IF_NO_GRAPHICS
	/*
	* Copyright (C) 2018 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#include <stddef.h>
	#include <stdio.h>

	#include <functional>
	#include <map>
	#include <memory>
	#include <string>
	#include <vector>

	#include <android-base/logging.h>
	#include <android-base/stringprintf.h>
	#include <android-base/test_utils.h>
	#include <gtest/gtest.h>

	#include "common/test_constants.h"
	#include "device.h"
	#include "minui/minui.h"
	#include "otautil/paths.h"
	#include "private/resources.h"
	#include "screen_ui.h"

	static const std::vector<std::string> HEADERS{ "header" };
	static const std::vector<std::string> ITEMS{ "item1", "item2", "item3", "item4", "1234567890" };

	TEST(ScreenUITest, StartPhoneMenuSmoke) {
	Menu menu(false, 10, 20, HEADERS, ITEMS, 0);
	ASSERT_FALSE(menu.scrollable());
	ASSERT_EQ(HEADERS[0], menu.text_headers()[0]);
	ASSERT_EQ(5u, menu.ItemsCount());

	std::string message;
	ASSERT_FALSE(menu.ItemsOverflow(&message));
	for (size_t i = 0; i < menu.ItemsCount(); i++) {
	ASSERT_EQ(ITEMS[i], menu.TextItem(i));
	}

	ASSERT_EQ(0, menu.selection());
	}

	TEST(ScreenUITest, StartWearMenuSmoke) {
	Menu menu(true, 10, 8, HEADERS, ITEMS, 1);
	ASSERT_TRUE(menu.scrollable());
	ASSERT_EQ(HEADERS[0], menu.text_headers()[0]);
	ASSERT_EQ(5u, menu.ItemsCount());

	std::string message;
	ASSERT_FALSE(menu.ItemsOverflow(&message));
	for (size_t i = 0; i < menu.ItemsCount() - 1; i++) {
	ASSERT_EQ(ITEMS[i], menu.TextItem(i));
	}
	// Test of the last item is truncated
	ASSERT_EQ("12345678", menu.TextItem(4));
	ASSERT_EQ(1, menu.selection());
	}

	TEST(ScreenUITest, StartPhoneMenuItemsOverflow) {
	Menu menu(false, 1, 20, HEADERS, ITEMS, 0);
	ASSERT_FALSE(menu.scrollable());
	ASSERT_EQ(1u, menu.ItemsCount());

	std::string message;
	ASSERT_FALSE(menu.ItemsOverflow(&message));
	for (size_t i = 0; i < menu.ItemsCount(); i++) {
	ASSERT_EQ(ITEMS[i], menu.TextItem(i));
	}

	ASSERT_EQ(0u, menu.MenuStart());
	ASSERT_EQ(1u, menu.MenuEnd());
	}

	TEST(ScreenUITest, StartWearMenuItemsOverflow) {
	Menu menu(true, 1, 20, HEADERS, ITEMS, 0);
	ASSERT_TRUE(menu.scrollable());
	ASSERT_EQ(5u, menu.ItemsCount());

	std::string message;
	ASSERT_TRUE(menu.ItemsOverflow(&message));
	ASSERT_EQ("Current item: 1/5", message);

	for (size_t i = 0; i < menu.ItemsCount(); i++) {
	ASSERT_EQ(ITEMS[i], menu.TextItem(i));
	}

	ASSERT_EQ(0u, menu.MenuStart());
	ASSERT_EQ(1u, menu.MenuEnd());
	}

	TEST(ScreenUITest, PhoneMenuSelectSmoke) {
	int sel = 0;
	Menu menu(false, 10, 20, HEADERS, ITEMS, sel);
	// Mimic down button 10 times (2 * items size)
	for (int i = 0; i < 10; i++) {
	sel = menu.Select(++sel);
	ASSERT_EQ(sel, menu.selection());

	// Wraps the selection for unscrollable menu when it reaches the boundary.
	int expected = (i + 1) % 5;
	ASSERT_EQ(expected, menu.selection());

	ASSERT_EQ(0u, menu.MenuStart());
	ASSERT_EQ(5u, menu.MenuEnd());
	}

	// Mimic up button 10 times
	for (int i = 0; i < 10; i++) {
	sel = menu.Select(--sel);
	ASSERT_EQ(sel, menu.selection());

	int expected = (9 - i) % 5;
	ASSERT_EQ(expected, menu.selection());

	ASSERT_EQ(0u, menu.MenuStart());
	ASSERT_EQ(5u, menu.MenuEnd());
	}
	}

	TEST(ScreenUITest, WearMenuSelectSmoke) {
	int sel = 0;
	Menu menu(true, 10, 20, HEADERS, ITEMS, sel);
	// Mimic pressing down button 10 times (2 * items size)
	for (int i = 0; i < 10; i++) {
	sel = menu.Select(++sel);
	ASSERT_EQ(sel, menu.selection());

	// Stops the selection at the boundary if the menu is scrollable.
	int expected = std::min(i + 1, 4);
	ASSERT_EQ(expected, menu.selection());

	ASSERT_EQ(0u, menu.MenuStart());
	ASSERT_EQ(5u, menu.MenuEnd());
	}

	// Mimic pressing up button 10 times
	for (int i = 0; i < 10; i++) {
	sel = menu.Select(--sel);
	ASSERT_EQ(sel, menu.selection());

	int expected = std::max(3 - i, 0);
	ASSERT_EQ(expected, menu.selection());

	ASSERT_EQ(0u, menu.MenuStart());
	ASSERT_EQ(5u, menu.MenuEnd());
	}
	}

	TEST(ScreenUITest, WearMenuSelectItemsOverflow) {
	int sel = 1;
	Menu menu(true, 3, 20, HEADERS, ITEMS, sel);
	ASSERT_EQ(5u, menu.ItemsCount());

	// Scroll the menu to the end, and check the start & end of menu.
	for (int i = 0; i < 3; i++) {
	sel = menu.Select(++sel);
	ASSERT_EQ(i + 2, sel);
	ASSERT_EQ(static_cast<size_t>(i), menu.MenuStart());
	ASSERT_EQ(static_cast<size_t>(i + 3), menu.MenuEnd());
	}

	// Press down button one more time won't change the MenuStart() and MenuEnd().
	sel = menu.Select(++sel);
	ASSERT_EQ(4, sel);
	ASSERT_EQ(2u, menu.MenuStart());
	ASSERT_EQ(5u, menu.MenuEnd());

	// Scroll the menu to the top.
	// The expected menu sel, start & ends are:
	// sel 3, start 2, end 5
	// sel 2, start 2, end 5
	// sel 1, start 1, end 4
	// sel 0, start 0, end 3
	for (int i = 0; i < 4; i++) {
	sel = menu.Select(--sel);
	ASSERT_EQ(3 - i, sel);
	ASSERT_EQ(static_cast<size_t>(std::min(3 - i, 2)), menu.MenuStart());
	ASSERT_EQ(static_cast<size_t>(std::min(6 - i, 5)), menu.MenuEnd());
	}

	// Press up button one more time won't change the MenuStart() and MenuEnd().
	sel = menu.Select(--sel);
	ASSERT_EQ(0, sel);
	ASSERT_EQ(0u, menu.MenuStart());
	ASSERT_EQ(3u, menu.MenuEnd());
	}

	static constexpr int kMagicAction = 101;

	enum class KeyCode : int {
	TIMEOUT = -1,
	NO_OP = 0,
	UP = 1,
	DOWN = 2,
	ENTER = 3,
	MAGIC = 1001,
	LAST,
	};

	static const std::map<KeyCode, int> kKeyMapping{
	// clang-format off
	{ KeyCode::NO_OP, Device::kNoAction },
	{ KeyCode::UP, Device::kHighlightUp },
	{ KeyCode::DOWN, Device::kHighlightDown },
	{ KeyCode::ENTER, Device::kInvokeItem },
	{ KeyCode::MAGIC, kMagicAction },
	// clang-format on
	};

	class TestableScreenRecoveryUI : public ScreenRecoveryUI {
	public:
	int WaitKey() override;

	void SetKeyBuffer(const std::vector<KeyCode>& buffer);

	int KeyHandler(int key, bool visible) const;

	// The following functions expose the protected members for test purpose.
	void RunLoadAnimation() {
	LoadAnimation();
	}

	size_t GetLoopFrames() const {
	return loop_frames;
	}

	size_t GetIntroFrames() const {
	return intro_frames;
	}

	bool GetRtlLocale() const {
	return rtl_locale_;
	}

	private:
	std::vector<KeyCode> key_buffer_;
	size_t key_buffer_index_;
	};

	void TestableScreenRecoveryUI::SetKeyBuffer(const std::vector<KeyCode>& buffer) {
	key_buffer_ = buffer;
	key_buffer_index_ = 0;
	}

	int TestableScreenRecoveryUI::KeyHandler(int key, bool) const {
	KeyCode key_code = static_cast<KeyCode>(key);
	if (kKeyMapping.find(key_code) != kKeyMapping.end()) {
	return kKeyMapping.at(key_code);
	}
	return Device::kNoAction;
	}

	int TestableScreenRecoveryUI::WaitKey() {
	CHECK_LT(key_buffer_index_, key_buffer_.size());
	return static_cast<int>(key_buffer_[key_buffer_index_++]);
	}

	class ScreenRecoveryUITest : public ::testing::Test {
	protected:
	const std::string kTestLocale = "en-US";
	const std::string kTestRtlLocale = "ar";
	const std::string kTestRtlLocaleWithSuffix = "ar-EG";

	void SetUp() override {
	has_graphics_ = gr_init() == 0;
	gr_exit();

	if (has_graphics_) {
	ui_ = std::make_unique<TestableScreenRecoveryUI>();
	}

	testdata_dir_ = from_testdata_base("");
	Paths::Get().set_resource_dir(testdata_dir_);
	res_set_resource_dir(testdata_dir_);
	}

	bool has_graphics_;
	std::unique_ptr<TestableScreenRecoveryUI> ui_;
	std::string testdata_dir_;
	};

	#define RETURN_IF_NO_GRAPHICS \
	do { \
	if (!has_graphics_) { \
	GTEST_LOG_(INFO) << "Test skipped due to no available graphics device"; \
	return; \
	} \
	} while (false)

	TEST_F(ScreenRecoveryUITest, Init) {
	RETURN_IF_NO_GRAPHICS;

	ASSERT_TRUE(ui_->Init(kTestLocale));
	ASSERT_EQ(kTestLocale, ui_->GetLocale());
	ASSERT_FALSE(ui_->GetRtlLocale());
	ASSERT_FALSE(ui_->IsTextVisible());
	ASSERT_FALSE(ui_->WasTextEverVisible());
	}

	TEST_F(ScreenRecoveryUITest, dtor_NotCallingInit) {
	ui_.reset();
	ASSERT_FALSE(ui_);
	}

	TEST_F(ScreenRecoveryUITest, ShowText) {
	RETURN_IF_NO_GRAPHICS;

	ASSERT_TRUE(ui_->Init(kTestLocale));
	ASSERT_FALSE(ui_->IsTextVisible());
	ui_->ShowText(true);
	ASSERT_TRUE(ui_->IsTextVisible());
	ASSERT_TRUE(ui_->WasTextEverVisible());

	ui_->ShowText(false);
	ASSERT_FALSE(ui_->IsTextVisible());
	ASSERT_TRUE(ui_->WasTextEverVisible());
	}

	TEST_F(ScreenRecoveryUITest, RtlLocale) {
	RETURN_IF_NO_GRAPHICS;

	ASSERT_TRUE(ui_->Init(kTestRtlLocale));
	ASSERT_TRUE(ui_->GetRtlLocale());
	}

	TEST_F(ScreenRecoveryUITest, RtlLocaleWithSuffix) {
	RETURN_IF_NO_GRAPHICS;

	ASSERT_TRUE(ui_->Init(kTestRtlLocaleWithSuffix));
	ASSERT_TRUE(ui_->GetRtlLocale());
	}

	TEST_F(ScreenRecoveryUITest, ShowMenu) {
	RETURN_IF_NO_GRAPHICS;

	ASSERT_TRUE(ui_->Init(kTestLocale));
	ui_->SetKeyBuffer({
	KeyCode::UP,
	KeyCode::DOWN,
	KeyCode::UP,
	KeyCode::DOWN,
	KeyCode::ENTER,
	});
	ASSERT_EQ(3u, ui_->ShowMenu(HEADERS, ITEMS, 3, true,
	std::bind(&TestableScreenRecoveryUI::KeyHandler, ui_.get(),
	std::placeholders::_1, std::placeholders::_2)));

	ui_->SetKeyBuffer({
	KeyCode::UP,
	KeyCode::UP,
	KeyCode::NO_OP,
	KeyCode::NO_OP,
	KeyCode::UP,
	KeyCode::ENTER,
	});
	ASSERT_EQ(2u, ui_->ShowMenu(HEADERS, ITEMS, 0, true,
	std::bind(&TestableScreenRecoveryUI::KeyHandler, ui_.get(),
	std::placeholders::_1, std::placeholders::_2)));
	}

	TEST_F(ScreenRecoveryUITest, ShowMenu_NotMenuOnly) {
	RETURN_IF_NO_GRAPHICS;

	ASSERT_TRUE(ui_->Init(kTestLocale));
	ui_->SetKeyBuffer({
	KeyCode::MAGIC,
	});
	ASSERT_EQ(static_cast<size_t>(kMagicAction),
	ui_->ShowMenu(HEADERS, ITEMS, 3, false,
	std::bind(&TestableScreenRecoveryUI::KeyHandler, ui_.get(),
	std::placeholders::_1, std::placeholders::_2)));
	}

	TEST_F(ScreenRecoveryUITest, ShowMenu_TimedOut) {
	RETURN_IF_NO_GRAPHICS;

	ASSERT_TRUE(ui_->Init(kTestLocale));
	ui_->SetKeyBuffer({
	KeyCode::TIMEOUT,
	});
	ASSERT_EQ(static_cast<size_t>(-1), ui_->ShowMenu(HEADERS, ITEMS, 3, true, nullptr));
	}

	TEST_F(ScreenRecoveryUITest, ShowMenu_TimedOut_TextWasEverVisible) {
	RETURN_IF_NO_GRAPHICS;

	ASSERT_TRUE(ui_->Init(kTestLocale));
	ui_->ShowText(true);
	ui_->ShowText(false);
	ASSERT_TRUE(ui_->WasTextEverVisible());

	ui_->SetKeyBuffer({
	KeyCode::TIMEOUT,
	KeyCode::DOWN,
	KeyCode::ENTER,
	});
	ASSERT_EQ(4u, ui_->ShowMenu(HEADERS, ITEMS, 3, true,
	std::bind(&TestableScreenRecoveryUI::KeyHandler, ui_.get(),
	std::placeholders::_1, std::placeholders::_2)));
	}

	TEST_F(ScreenRecoveryUITest, LoadAnimation) {
	RETURN_IF_NO_GRAPHICS;

	ASSERT_TRUE(ui_->Init(kTestLocale));
	// Make a few copies of loop00000.png from testdata.
	std::string image_data;
	ASSERT_TRUE(android::base::ReadFileToString(testdata_dir_ + "/loop00000.png", &image_data));

	std::vector<std::string> tempfiles;
	TemporaryDir resource_dir;
	for (const auto& name : { "00002", "00100", "00050" }) {
	tempfiles.push_back(android::base::StringPrintf("%s/loop%s.png", resource_dir.path, name));
	ASSERT_TRUE(android::base::WriteStringToFile(image_data, tempfiles.back()));
	}
	for (const auto& name : { "00", "01" }) {
	tempfiles.push_back(android::base::StringPrintf("%s/intro%s.png", resource_dir.path, name));
	ASSERT_TRUE(android::base::WriteStringToFile(image_data, tempfiles.back()));
	}
	Paths::Get().set_resource_dir(resource_dir.path);

	ui_->RunLoadAnimation();

	ASSERT_EQ(2u, ui_->GetIntroFrames());
	ASSERT_EQ(3u, ui_->GetLoopFrames());

	for (const auto& name : tempfiles) {
	ASSERT_EQ(0, unlink(name.c_str()));
	}
	}

	TEST_F(ScreenRecoveryUITest, LoadAnimation_MissingAnimation) {
	RETURN_IF_NO_GRAPHICS;

	ASSERT_TRUE(ui_->Init(kTestLocale));
	TemporaryDir resource_dir;
	Paths::Get().set_resource_dir(resource_dir.path);

	::testing::FLAGS_gtest_death_test_style = "threadsafe";
	ASSERT_EXIT(ui_->RunLoadAnimation(), ::testing::KilledBySignal(SIGABRT), "");
	}

	#undef RETURN_IF_NO_GRAPHICS