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// Copyright 2015 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef TESTING_TEST_SUPPORT_H_
#define TESTING_TEST_SUPPORT_H_

#include <stdlib.h>

#include <memory>
#include <string>
#include <vector>

#include "public/fpdfview.h"

#if PDF_ENABLE_XFA
#include "xfa/fgas/font/cfgas_fontmgr.h"
#endif  // PDF_ENABLE_XFA

namespace pdfium {

#define STR_IN_TEST_CASE(input_literal, ...)               \
  {                                                        \
    reinterpret_cast<const unsigned char*>(input_literal), \
        sizeof(input_literal) - 1, __VA_ARGS__             \
  }

#define STR_IN_OUT_CASE(input_literal, expected_literal, ...)     \
  {                                                               \
    reinterpret_cast<const unsigned char*>(input_literal),        \
        sizeof(input_literal) - 1,                                \
        reinterpret_cast<const unsigned char*>(expected_literal), \
        sizeof(expected_literal) - 1, __VA_ARGS__                 \
  }

struct StrFuncTestData {
  const unsigned char* input;
  uint32_t input_size;
  const unsigned char* expected;
  uint32_t expected_size;
};

struct DecodeTestData {
  const unsigned char* input;
  uint32_t input_size;
  const unsigned char* expected;
  uint32_t expected_size;
  // The size of input string being processed.
  uint32_t processed_size;
};

struct NullTermWstrFuncTestData {
  const wchar_t* input;
  const wchar_t* expected;
};

// Used with std::unique_ptr to free() objects that can't be deleted.
struct FreeDeleter {
  inline void operator()(void* ptr) const { free(ptr); }
};

}  // namespace pdfium

// Reads the entire contents of a file into a newly alloc'd buffer.
std::unique_ptr<char, pdfium::FreeDeleter> GetFileContents(const char* filename,
                                                           size_t* retlen);

std::vector<std::string> StringSplit(const std::string& str, char delimiter);

// Converts a FPDF_WIDESTRING to a std::string.
// Deals with differences between UTF16LE and UTF8.
std::string GetPlatformString(FPDF_WIDESTRING wstr);

// Converts a FPDF_WIDESTRING to a std::wstring.
// Deals with differences between UTF16LE and wchar_t.
std::wstring GetPlatformWString(FPDF_WIDESTRING wstr);

// Returns a newly allocated FPDF_WIDESTRING.
// Deals with differences between UTF16LE and wchar_t.
std::unique_ptr<unsigned short, pdfium::FreeDeleter> GetFPDFWideString(
    const std::wstring& wstr);

std::string CryptToBase16(const uint8_t* digest);
std::string GenerateMD5Base16(const uint8_t* data, uint32_t size);

#ifdef PDF_ENABLE_V8
namespace v8 {
class Platform;
}
#ifdef V8_USE_EXTERNAL_STARTUP_DATA
namespace v8 {
class StartupData;
}

// |natives_blob| and |snapshot_blob| are optional out parameters. They should
// either both be valid or both be nullptrs.
std::unique_ptr<v8::Platform> InitializeV8ForPDFiumWithStartupData(
    const std::string& exe_path,
    const std::string& bin_dir,
    v8::StartupData* natives_blob,
    v8::StartupData* snapshot_blob);
#else   // V8_USE_EXTERNAL_STARTUP_DATA
std::unique_ptr<v8::Platform> InitializeV8ForPDFium(
    const std::string& exe_path);
#endif  // V8_USE_EXTERNAL_STARTUP_DATA
#endif  // PDF_ENABLE_V8

class TestLoader {
 public:
  TestLoader(const char* pBuf, size_t len);
  static int GetBlock(void* param,
                      unsigned long pos,
                      unsigned char* pBuf,
                      unsigned long size);

 private:
  const char* const m_pBuf;
  const size_t m_Len;
};

#if PDF_ENABLE_XFA
CFGAS_FontMgr* GetGlobalFontManager();
#endif  // PDF_ENABLE_XFA

#endif  // TESTING_TEST_SUPPORT_H_