text: // Copyright 2020 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #include "ash/components/quick_answers/translation_response_parser.h"
  
  #include <memory>
  #include <string>
  
  #include "ash/components/quick_answers/quick_answers_model.h"
  #include "ash/components/quick_answers/test/test_helpers.h"
  #include "base/run_loop.h"
  #include "base/test/task_environment.h"
  #include "services/data_decoder/public/cpp/test_support/in_process_data_decoder.h"
  #include "testing/gtest/include/gtest/gtest.h"
  
  namespace ash {
  namespace quick_answers {
  
  class TranslationResponseParserTest : public testing::Test {
   public:
    TranslationResponseParserTest() = default;
  
    TranslationResponseParserTest(const TranslationResponseParserTest&) = delete;
    TranslationResponseParserTest& operator=(
        const TranslationResponseParserTest&) = delete;
  
    // testing::Test:
    void SetUp() override {
      translation_response_parser_ =
          std::make_unique<TranslationResponseParser>(base::BindOnce(
              &TranslationResponseParserTest::TranslationResponseParserCallback,
              base::Unretained(this)));
      run_loop_ = std::make_unique<base::RunLoop>();
    }
  
    void TranslationResponseParserCallback(
        std::unique_ptr<QuickAnswer> quick_answer) {
      quick_answer_ = std::move(quick_answer);
      run_loop_->Quit();
    }
  
    void WaitForResponse() {
      run_loop_->Run();
      run_loop_ = std::make_unique<base::RunLoop>();
    }
  
   protected:
    base::test::SingleThreadTaskEnvironment task_environment_;
    std::unique_ptr<TranslationResponseParser> translation_response_parser_;
    std::unique_ptr<QuickAnswer> quick_answer_;
    data_decoder::test::InProcessDataDecoder in_process_data_decoder_;
    std::unique_ptr<base::RunLoop> run_loop_;
  };
  
  TEST_F(TranslationResponseParserTest, ProcessResponseSuccess) {
    constexpr char kTranslationResponse[] = R"(
      {
        "data": {
          "translations": [
            {
              "translatedText": "translated text"
            }
          ]
        }
      }
    )";
    constexpr char kTranslationTitle[] = "testo tradotto · Italian";
    translation_response_parser_->ProcessResponse(
        std::make_unique<std::string>(kTranslationResponse), kTranslationTitle);
    WaitForResponse();
    EXPECT_TRUE(quick_answer_);
    EXPECT_EQ("translated text",
              GetQuickAnswerTextForTesting(quick_answer_->first_answer_row));
    EXPECT_EQ(kTranslationTitle,
              GetQuickAnswerTextForTesting(quick_answer_->title));
    EXPECT_EQ(ResultType::kTranslationResult, quick_answer_->result_type);
  }
  
  TEST_F(TranslationResponseParserTest,
         ProcessResponseWithAmpersandCharacterCodes) {
    constexpr char kTranslationResponse[] = R"(
      {
        "data": {
          "translations": [
            {
              "translatedText": "don&#39;t mess with me"
            }
          ]
        }
      }
    )";
    constexpr char kTranslationTitle[] = "non scherzare con me · Italian";
    translation_response_parser_->ProcessResponse(
        std::make_unique<std::string>(kTranslationResponse), kTranslationTitle);
    WaitForResponse();
    EXPECT_TRUE(quick_answer_);
    // Should correctly unescape ampersand character codes.
    EXPECT_EQ("don't mess with me",
              GetQuickAnswerTextForTesting(quick_answer_->first_answer_row));
    EXPECT_EQ(kTranslationTitle,
              GetQuickAnswerTextForTesting(quick_answer_->title));
    EXPECT_EQ(ResultType::kTranslationResult, quick_answer_->result_type);
  }
  
  TEST_F(TranslationResponseParserTest, ProcessResponseNoResults) {
    constexpr char kTranslationResponse[] = R"(
      {}
    )";
    translation_response_parser_->ProcessResponse(
        std::make_unique<std::string>(kTranslationResponse), std::string());
    WaitForResponse();
    EXPECT_FALSE(quick_answer_);
  }
  
  TEST_F(TranslationResponseParserTest, ProcessResponseInvalidResponse) {
    translation_response_parser_->ProcessResponse(
        std::make_unique<std::string>("results {}"), std::string());
    WaitForResponse();
    EXPECT_FALSE(quick_answer_);
  }
  
  }  // namespace quick_answers
  }  // namespace ash
  