/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "gtest/gtest.h"

#include "Common.h"

#include "imgLoader.h"

#include "nsMimeTypes.h"

#include "nsString.h"

using namespace mozilla;

using namespace mozilla::image;

static void

CheckMimeType(const char* aContents, size_t aLength, const char* aExpected)

{

  nsAutoCString detected;

  nsresult rv = imgLoader::GetMimeTypeFromContent(aContents, aLength, detected);

  if (aExpected) {

    ASSERT_TRUE(NS_SUCCEEDED(rv));

    EXPECT_TRUE(detected.EqualsASCII(aExpected));

  } else {

    ASSERT_TRUE(NS_FAILED(rv));

    EXPECT_TRUE(detected.IsEmpty());

  }

}

class ImageLoader : public ::testing::Test

{

protected:

  AutoInitializeImageLib mInit;

};

TEST_F(ImageLoader, DetectGIF)

{

  const char buffer[] = "GIF87a";

  CheckMimeType(buffer, sizeof(buffer), IMAGE_GIF);

}

TEST_F(ImageLoader, DetectPNG)

{

  const char buffer[] = "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A";

  CheckMimeType(buffer, sizeof(buffer), IMAGE_PNG);

}

TEST_F(ImageLoader, DetectJPEG)

{

  const char buffer[] = "\xFF\xD8\xFF";

  CheckMimeType(buffer, sizeof(buffer), IMAGE_JPEG);

}

TEST_F(ImageLoader, DetectART)

{

  const char buffer[] = "\x4A\x47\xFF\xFF\x00";

  CheckMimeType(buffer, sizeof(buffer), IMAGE_ART);

}

TEST_F(ImageLoader, DetectBMP)

{

  const char buffer[] = "BM";

  CheckMimeType(buffer, sizeof(buffer), IMAGE_BMP);

}

TEST_F(ImageLoader, DetectICO)

{

  const char buffer[] = "\x00\x00\x01\x00";

  CheckMimeType(buffer, sizeof(buffer), IMAGE_ICO);

}

TEST_F(ImageLoader, DetectWebP)

{

  const char buffer[] = "RIFF\xFF\xFF\xFF\xFFWEBPVP8L";

  CheckMimeType(buffer, sizeof(buffer), IMAGE_WEBP);

}

TEST_F(ImageLoader, DetectNone)

{

  const char buffer[] = "abcdefghijklmnop";

  CheckMimeType(buffer, sizeof(buffer), nullptr);

}