/*
 * Copyright 2015 Google Inc. All Rights Reserved.
 *
 * 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 "cobalt/loader/text_decoder.h"

#include "base/bind.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace cobalt {
namespace loader {
namespace {

struct TextDecoderCallback {
  void Callback(const std::string& value) { text = value; }
  std::string text;
};

}  // namespace

TEST(TextDecoderTest, EmptyString) {
  TextDecoderCallback text_decoder_result;
  TextDecoder text_decoder(base::Bind(&TextDecoderCallback::Callback,
                                      base::Unretained(&text_decoder_result)));

  EXPECT_EQ("", text_decoder_result.text);
  text_decoder.DecodeChunk("abc", 0);
  text_decoder.DecodeChunk("", 0);
  text_decoder.Finish();
  EXPECT_EQ("", text_decoder_result.text);
}

TEST(TextDecoderTest, NonEmptyString) {
  TextDecoderCallback text_decoder_result;
  TextDecoder text_decoder(base::Bind(&TextDecoderCallback::Callback,
                                      base::Unretained(&text_decoder_result)));

  EXPECT_EQ("", text_decoder_result.text);
  text_decoder.DecodeChunk("abc", 3);
  text_decoder.DecodeChunk("defghi", 3);
  text_decoder.Finish();
  EXPECT_EQ("abcdef", text_decoder_result.text);
}

}  // namespace loader
}  // namespace cobalt