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// Copyright 2020 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/ash/input_method/grammar_service_client.h"
#include <vector>
#include "base/functional/bind.h"
#include "base/run_loop.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/test/base/testing_profile.h"
#include "chromeos/services/machine_learning/public/cpp/fake_service_connection.h"
#include "chromeos/services/machine_learning/public/mojom/grammar_checker.mojom.h"
#include "components/prefs/pref_service.h"
#include "components/spellcheck/browser/pref_names.h"
#include "content/public/test/browser_task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/base/ime/grammar_fragment.h"
#include "ui/gfx/range/range.h"
namespace ash {
namespace input_method {
namespace {
namespace machine_learning = ::chromeos::machine_learning;
class GrammarServiceClientTest : public testing::Test {
public:
GrammarServiceClientTest() = default;
private:
content::BrowserTaskEnvironment task_environment_;
};
TEST_F(GrammarServiceClientTest, ReturnsEmptyResultWhenSpellCheckIsDiabled) {
machine_learning::FakeServiceConnectionImpl fake_service_connection;
machine_learning::ServiceConnection::UseFakeServiceConnectionForTesting(
&fake_service_connection);
machine_learning::ServiceConnection::GetInstance()->Initialize();
auto profile = std::make_unique<TestingProfile>();
profile->GetPrefs()->SetBoolean(spellcheck::prefs::kSpellCheckEnable, false);
GrammarServiceClient client;
base::RunLoop().RunUntilIdle();
client.RequestTextCheck(
profile.get(), u"cat",
base::BindOnce(
[](bool success, const std::vector<ui::GrammarFragment>& results) {
EXPECT_FALSE(success);
EXPECT_TRUE(results.empty());
}));
base::RunLoop().RunUntilIdle();
}
TEST_F(GrammarServiceClientTest, ParsesResults) {
machine_learning::FakeServiceConnectionImpl fake_service_connection;
machine_learning::ServiceConnection::UseFakeServiceConnectionForTesting(
&fake_service_connection);
machine_learning::ServiceConnection::GetInstance()->Initialize();
auto profile = std::make_unique<TestingProfile>();
profile->GetPrefs()->SetBoolean(spellcheck::prefs::kSpellCheckEnable, true);
// Construct fake output
machine_learning::mojom::GrammarCheckerResultPtr result =
machine_learning::mojom::GrammarCheckerResult::New();
result->status = machine_learning::mojom::GrammarCheckerResult::Status::OK;
machine_learning::mojom::GrammarCheckerCandidatePtr candidate =
machine_learning::mojom::GrammarCheckerCandidate::New();
candidate->text = "fake output";
candidate->score = 0.5f;
machine_learning::mojom::GrammarCorrectionFragmentPtr fragment =
machine_learning::mojom::GrammarCorrectionFragment::New();
fragment->offset = 3;
fragment->length = 5;
fragment->replacement = "fake replacement";
candidate->fragments.emplace_back(std::move(fragment));
result->candidates.emplace_back(std::move(candidate));
fake_service_connection.SetOutputGrammarCheckerResult(result);
std::vector<machine_learning::mojom::TextLanguagePtr> languages;
languages.push_back(
machine_learning::mojom::TextLanguage::New("en", /*confidence=*/1));
fake_service_connection.SetOutputLanguages(languages);
GrammarServiceClient client;
base::RunLoop().RunUntilIdle();
client.RequestTextCheck(
profile.get(), u"fake input",
base::BindOnce(
[](bool success, const std::vector<ui::GrammarFragment>& results) {
EXPECT_TRUE(success);
ASSERT_EQ(results.size(), 1U);
EXPECT_EQ(results[0].range, gfx::Range(3, 8));
EXPECT_EQ(results[0].suggestion, "fake replacement");
}));
base::RunLoop().RunUntilIdle();
}
TEST_F(GrammarServiceClientTest, RejectsNonEnglishQuery) {
machine_learning::FakeServiceConnectionImpl fake_service_connection;
machine_learning::ServiceConnection::UseFakeServiceConnectionForTesting(
&fake_service_connection);
machine_learning::ServiceConnection::GetInstance()->Initialize();
auto profile = std::make_unique<TestingProfile>();
profile->GetPrefs()->SetBoolean(spellcheck::prefs::kSpellCheckEnable, true);
// Construct fake output
std::vector<machine_learning::mojom::TextLanguagePtr> languages;
languages.push_back(
machine_learning::mojom::TextLanguage::New("jp", /* confidence */ 1));
fake_service_connection.SetOutputLanguages(languages);
GrammarServiceClient client;
base::RunLoop().RunUntilIdle();
client.RequestTextCheck(
profile.get(), u"fake input",
base::BindOnce(
[](bool success, const std::vector<ui::GrammarFragment>& results) {
EXPECT_FALSE(success);
}));
base::RunLoop().RunUntilIdle();
}
TEST_F(GrammarServiceClientTest, RejectsLongQueries) {
machine_learning::FakeServiceConnectionImpl fake_service_connection;
machine_learning::ServiceConnection::UseFakeServiceConnectionForTesting(
&fake_service_connection);
machine_learning::ServiceConnection::GetInstance()->Initialize();
auto profile = std::make_unique<TestingProfile>();
profile->GetPrefs()->SetBoolean(spellcheck::prefs::kSpellCheckEnable, true);
GrammarServiceClient client;
base::RunLoop().RunUntilIdle();
const std::u16string long_text =
u"This is a very very very very very very very very very very very very "
"very very loooooooooooong sentence, indeed very very very very very "
"very very very very very very very very very loooooooooooong. Followed "
"by a fake input sentence.";
client.RequestTextCheck(
profile.get(), long_text,
base::BindOnce(
[](bool success, const std::vector<ui::GrammarFragment>& results) {
EXPECT_FALSE(success);
}));
base::RunLoop().RunUntilIdle();
}
} // namespace
} // namespace input_method
} // namespace ash
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