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// Copyright 2024 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/browser/ui/ash/capture_mode/chrome_capture_mode_delegate.h"
#include <optional>
#include <string>
#include <utility>
#include "ash/constants/ash_features.h"
#include "base/files/file_util.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/scoped_observation.h"
#include "base/task/single_thread_task_runner.h"
#include "base/test/scoped_feature_list.h"
#include "base/test/test_future.h"
#include "base/threading/thread_restrictions.h"
#include "chrome/browser/ash/file_manager/file_manager_test_util.h"
#include "chrome/browser/screen_ai/public/test/fake_optical_character_recognizer.h"
#include "chrome/browser/screen_ai/screen_ai_install_state.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "content/public/test/browser_test.h"
#include "services/screen_ai/public/mojom/screen_ai_service.mojom.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/skia/include/core/SkBitmap.h"
class ChromeCaptureModeDelegateBrowserTest
: public InProcessBrowserTest,
public screen_ai::ScreenAIInstallState::Observer {
public:
ChromeCaptureModeDelegateBrowserTest() = default;
ChromeCaptureModeDelegateBrowserTest(
const ChromeCaptureModeDelegateBrowserTest&) = delete;
ChromeCaptureModeDelegateBrowserTest& operator=(
const ChromeCaptureModeDelegateBrowserTest&) = delete;
~ChromeCaptureModeDelegateBrowserTest() override = default;
// InProcessBrowserTest:
void SetUpOnMainThread() override {
screen_ai_install_state_observer_.Observe(
screen_ai::ScreenAIInstallState::GetInstance());
}
void TearDownOnMainThread() override {
// Reset the screen ai install state observer before browser shut down and
// destruction of the screen_ai::ScreenAIInstallState.
screen_ai_install_state_observer_.Reset();
}
// screen_ai::ScreenAIInstallState::Observer:
void StateChanged(screen_ai::ScreenAIInstallState::State state) override {
if (state == screen_ai::ScreenAIInstallState::State::kDownloading) {
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindOnce([]() {
screen_ai::ScreenAIInstallState::GetInstance()->SetState(
screen_ai::ScreenAIInstallState::State::kDownloadFailed);
}));
}
}
private:
base::test::ScopedFeatureList scoped_feature_list_{
ash::features::kScannerUpdate};
// The OCR service is not supported on ChromeOS browser tests, so use an
// observer to fail the download when requested. Otherwise, the download
// request will time out.
base::ScopedObservation<screen_ai::ScreenAIInstallState,
screen_ai::ScreenAIInstallState::Observer>
screen_ai_install_state_observer_{this};
};
IN_PROC_BROWSER_TEST_F(ChromeCaptureModeDelegateBrowserTest,
FileNotRedirected) {
ChromeCaptureModeDelegate* delegate = ChromeCaptureModeDelegate::Get();
base::ScopedAllowBlockingForTesting allow_blocking;
// Create regular file in downloads.
const base::FilePath downloads_path =
delegate->GetUserDefaultDownloadsFolder();
base::FilePath path;
base::CreateTemporaryFileInDir(downloads_path, &path);
// Should not be redirected.
EXPECT_EQ(path, delegate->RedirectFilePath(path));
// Successfully finalized to the same location.
base::test::TestFuture<bool, const base::FilePath&> path_future;
delegate->FinalizeSavedFile(path_future.GetCallback(), path, gfx::Image(),
/*for_video=*/false);
EXPECT_TRUE(path_future.Get<0>());
EXPECT_EQ(path_future.Get<1>(), path);
// Cleanup.
EXPECT_TRUE(base::PathExists(path));
base::DeleteFile(path);
}
IN_PROC_BROWSER_TEST_F(ChromeCaptureModeDelegateBrowserTest,
OdfsFileRedirected) {
ChromeCaptureModeDelegate* delegate = ChromeCaptureModeDelegate::Get();
base::ScopedAllowBlockingForTesting allow_blocking;
// Mount ODFS.
file_manager::test::FakeProvidedFileSystemOneDrive* provided_file_system =
file_manager::test::MountFakeProvidedFileSystemOneDrive(
browser()->profile());
ASSERT_TRUE(provided_file_system);
EXPECT_FALSE(delegate->GetOneDriveMountPointPath().empty());
EXPECT_FALSE(delegate->GetOneDriveVirtualPath().empty());
// Check that file going to OneDrive will be redirected to /tmp.
const std::string test_file_name = "capture_mode_delegate.test";
base::FilePath original_file =
delegate->GetOneDriveVirtualPath().Append(test_file_name);
base::FilePath redirected_path = delegate->RedirectFilePath(original_file);
EXPECT_NE(redirected_path, original_file);
base::FilePath tmp_dir;
ASSERT_TRUE(base::GetTempDir(&tmp_dir));
EXPECT_TRUE(tmp_dir.IsParent(redirected_path));
// Create the redirected file.
base::File file(redirected_path,
base::File::FLAG_CREATE | base::File::FLAG_WRITE);
ASSERT_TRUE(file.IsValid());
file.Close();
// Check that the file is successfully finalized to different location.
base::test::TestFuture<bool, const base::FilePath&> path_future;
delegate->FinalizeSavedFile(path_future.GetCallback(), redirected_path,
gfx::Image(), /*for_video=*/false);
EXPECT_TRUE(path_future.Get<0>());
// Check that file now exists in OneDrive.
base::test::TestFuture<
std::unique_ptr<ash::file_system_provider::EntryMetadata>,
base::File::Error>
metadata_future;
provided_file_system->GetMetadata(base::FilePath("/").Append(test_file_name),
{}, metadata_future.GetCallback());
EXPECT_EQ(base::File::Error::FILE_OK,
metadata_future.Get<base::File::Error>());
// Original file was moved.
EXPECT_FALSE(base::PathExists(redirected_path));
// Delete the file using delegate.
base::test::TestFuture<bool> deletion_future;
delegate->DeleteRemoteFile(path_future.Get<1>(),
deletion_future.GetCallback());
EXPECT_TRUE(deletion_future.Get<0>());
// Check that file now does not in OneDrive.
base::test::TestFuture<
std::unique_ptr<ash::file_system_provider::EntryMetadata>,
base::File::Error>
deleted_metadata_future;
provided_file_system->GetMetadata(base::FilePath("/").Append(test_file_name),
{}, deleted_metadata_future.GetCallback());
EXPECT_EQ(base::File::Error::FILE_ERROR_NOT_FOUND,
deleted_metadata_future.Get<base::File::Error>());
}
// The OCR service is not supported on ChromeOS browser tests, so we can't check
// the real detected text.
IN_PROC_BROWSER_TEST_F(ChromeCaptureModeDelegateBrowserTest,
EmptyDetectedTextWhenOCRNotSupported) {
base::test::TestFuture<std::optional<std::string>> detected_text_future;
ChromeCaptureModeDelegate::Get()->DetectTextInImage(
SkBitmap(), detected_text_future.GetCallback());
EXPECT_EQ(detected_text_future.Get(), std::nullopt);
}
// Simulates successful text detection using a fake OCR backend.
IN_PROC_BROWSER_TEST_F(ChromeCaptureModeDelegateBrowserTest,
DetectsTextWhenOCRSupported) {
ChromeCaptureModeDelegate* delegate = ChromeCaptureModeDelegate::Get();
scoped_refptr<screen_ai::FakeOpticalCharacterRecognizer>
optical_character_recognizer =
screen_ai::FakeOpticalCharacterRecognizer::Create(
/*empty_ax_tree_update_result=*/false);
auto visual_annotation = screen_ai::mojom::VisualAnnotation::New();
auto line1 = screen_ai::mojom::LineBox::New();
line1->text_line = "Text";
visual_annotation->lines.push_back(std::move(line1));
auto line2 = screen_ai::mojom::LineBox::New();
line2->text_line = "š";
visual_annotation->lines.push_back(std::move(line2));
optical_character_recognizer->set_visual_annotation_result(
std::move(visual_annotation));
delegate->set_optical_character_recognizer_for_testing(
std::move(optical_character_recognizer));
base::test::TestFuture<std::optional<std::string>> detected_text_future;
delegate->DetectTextInImage(SkBitmap(), detected_text_future.GetCallback());
EXPECT_EQ(detected_text_future.Get(), "Text\nš");
}
IN_PROC_BROWSER_TEST_F(ChromeCaptureModeDelegateBrowserTest,
SessionClosedDuringTextDetection) {
ChromeCaptureModeDelegate* delegate = ChromeCaptureModeDelegate::Get();
delegate->set_optical_character_recognizer_for_testing(
screen_ai::FakeOpticalCharacterRecognizer::Create(
/*empty_ax_tree_update_result=*/false));
base::test::TestFuture<std::optional<std::string>> detected_text_future;
// Close the session immediately after a text detection request.
delegate->DetectTextInImage(SkBitmap(), detected_text_future.GetCallback());
delegate->OnSessionStateChanged(/*started=*/false);
EXPECT_EQ(detected_text_future.Get(), std::nullopt);
}
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