/**
 * Orthanc - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 *
 * This program is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * In addition, as a special exception, the copyright holders of this
 * program give permission to link the code of its release with the
 * OpenSSL project's "OpenSSL" library (or with modified versions of it
 * that use the same license as the "OpenSSL" library), and distribute
 * the linked executables. You must obey the GNU General Public License
 * in all respects for all of the code used other than "OpenSSL". If you
 * modify file(s) with this exception, you may extend this exception to
 * your version of the file(s), but you are not obligated to do so. If
 * you do not wish to do so, delete this exception statement from your
 * version. If you delete this exception statement from all source files
 * in the program, then also delete it here.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 **/


#include "PrecompiledHeadersUnitTests.h"
#include "../Core/EnumerationDictionary.h"

#include "gtest/gtest.h"

#include <ctype.h>

#include "../Core/Compression/ZlibCompressor.h"
#include "../Core/DicomFormat/DicomTag.h"
#include "../Core/HttpServer/HttpToolbox.h"
#include "../Core/Logging.h"
#include "../Core/OrthancException.h"
#include "../Core/Toolbox.h"
#include "../Core/Uuid.h"
#include "../OrthancServer/OrthancInitialization.h"


using namespace Orthanc;


TEST(Uuid, Generation)
{
  for (int i = 0; i < 10; i++)
  {
    std::string s = Toolbox::GenerateUuid();
    ASSERT_TRUE(Toolbox::IsUuid(s));
  }
}

TEST(Uuid, Test)
{
  ASSERT_FALSE(Toolbox::IsUuid(""));
  ASSERT_FALSE(Toolbox::IsUuid("012345678901234567890123456789012345"));
  ASSERT_TRUE(Toolbox::IsUuid("550e8400-e29b-41d4-a716-446655440000"));
  ASSERT_FALSE(Toolbox::IsUuid("550e8400-e29b-41d4-a716-44665544000_"));
  ASSERT_FALSE(Toolbox::IsUuid("01234567890123456789012345678901234_"));
  ASSERT_FALSE(Toolbox::StartsWithUuid("550e8400-e29b-41d4-a716-44665544000"));
  ASSERT_TRUE(Toolbox::StartsWithUuid("550e8400-e29b-41d4-a716-446655440000"));
  ASSERT_TRUE(Toolbox::StartsWithUuid("550e8400-e29b-41d4-a716-446655440000 ok"));
  ASSERT_FALSE(Toolbox::StartsWithUuid("550e8400-e29b-41d4-a716-446655440000ok"));
}

TEST(Toolbox, IsSHA1)
{
  ASSERT_FALSE(Toolbox::IsSHA1(""));
  ASSERT_FALSE(Toolbox::IsSHA1("01234567890123456789012345678901234567890123"));
  ASSERT_FALSE(Toolbox::IsSHA1("012345678901234567890123456789012345678901234"));
  ASSERT_TRUE(Toolbox::IsSHA1("b5ed549f-956400ce-69a8c063-bf5b78be-2732a4b9"));

  std::string sha = "         b5ed549f-956400ce-69a8c063-bf5b78be-2732a4b9          ";
  ASSERT_TRUE(Toolbox::IsSHA1(sha));
  sha[3] = '\0';
  sha[53] = '\0';
  ASSERT_TRUE(Toolbox::IsSHA1(sha));
  sha[40] = '\0';
  ASSERT_FALSE(Toolbox::IsSHA1(sha));
  ASSERT_FALSE(Toolbox::IsSHA1("       "));

  ASSERT_TRUE(Toolbox::IsSHA1("16738bc3-e47ed42a-43ce044c-a3414a45-cb069bd0"));

  std::string s;
  Toolbox::ComputeSHA1(s, "The quick brown fox jumps over the lazy dog");
  ASSERT_TRUE(Toolbox::IsSHA1(s));
  ASSERT_EQ("2fd4e1c6-7a2d28fc-ed849ee1-bb76e739-1b93eb12", s);

  ASSERT_FALSE(Toolbox::IsSHA1("b5ed549f-956400ce-69a8c063-bf5b78be-2732a4b_"));
}

static void StringToVector(std::vector<uint8_t>& v,
                           const std::string& s)
{
  v.resize(s.size());
  for (size_t i = 0; i < s.size(); i++)
    v[i] = s[i];
}


TEST(Zlib, Basic)
{
  std::string s = Toolbox::GenerateUuid();
  s = s + s + s + s;
 
  std::string compressed, compressed2;
  ZlibCompressor c;
  c.Compress(compressed, s);

  std::vector<uint8_t> v, vv;
  StringToVector(v, s);
  c.Compress(compressed2, v);
  ASSERT_EQ(compressed, compressed2);

  std::string uncompressed;
  c.Uncompress(uncompressed, compressed);
  ASSERT_EQ(s.size(), uncompressed.size());
  ASSERT_EQ(0, memcmp(&s[0], &uncompressed[0], s.size()));

  StringToVector(vv, compressed);
  c.Uncompress(uncompressed, vv);
  ASSERT_EQ(s.size(), uncompressed.size());
  ASSERT_EQ(0, memcmp(&s[0], &uncompressed[0], s.size()));
}


TEST(Zlib, Level)
{
  std::string s = Toolbox::GenerateUuid();
  s = s + s + s + s;
 
  std::string compressed, compressed2;
  ZlibCompressor c;
  c.SetCompressionLevel(9);
  c.Compress(compressed, s);

  c.SetCompressionLevel(0);
  c.Compress(compressed2, s);

  ASSERT_TRUE(compressed.size() < compressed2.size());
}


TEST(Zlib, DISABLED_Corrupted)  // Disabled because it may result in a crash
{
  std::string s = Toolbox::GenerateUuid();
  s = s + s + s + s;
 
  std::string compressed;
  ZlibCompressor c;
  c.Compress(compressed, s);

  compressed[compressed.size() - 1] = 'a';
  std::string u;

  ASSERT_THROW(c.Uncompress(u, compressed), OrthancException);
}


TEST(Zlib, Empty)
{
  std::string s = "";
  std::vector<uint8_t> v, vv;
 
  std::string compressed, compressed2;
  ZlibCompressor c;
  c.Compress(compressed, s);
  c.Compress(compressed2, v);
  ASSERT_EQ(compressed, compressed2);

  std::string uncompressed;
  c.Uncompress(uncompressed, compressed);
  ASSERT_EQ(0u, uncompressed.size());

  StringToVector(vv, compressed);
  c.Uncompress(uncompressed, vv);
  ASSERT_EQ(0u, uncompressed.size());
}


TEST(ParseGetArguments, Basic)
{
  IHttpHandler::GetArguments b;
  HttpToolbox::ParseGetArguments(b, "aaa=baaa&bb=a&aa=c");

  IHttpHandler::Arguments a;
  HttpToolbox::CompileGetArguments(a, b);

  ASSERT_EQ(3u, a.size());
  ASSERT_EQ(a["aaa"], "baaa");
  ASSERT_EQ(a["bb"], "a");
  ASSERT_EQ(a["aa"], "c");
}

TEST(ParseGetArguments, BasicEmpty)
{
  IHttpHandler::GetArguments b;
  HttpToolbox::ParseGetArguments(b, "aaa&bb=aa&aa");

  IHttpHandler::Arguments a;
  HttpToolbox::CompileGetArguments(a, b);

  ASSERT_EQ(3u, a.size());
  ASSERT_EQ(a["aaa"], "");
  ASSERT_EQ(a["bb"], "aa");
  ASSERT_EQ(a["aa"], "");
}

TEST(ParseGetArguments, Single)
{
  IHttpHandler::GetArguments b;
  HttpToolbox::ParseGetArguments(b, "aaa=baaa");

  IHttpHandler::Arguments a;
  HttpToolbox::CompileGetArguments(a, b);

  ASSERT_EQ(1u, a.size());
  ASSERT_EQ(a["aaa"], "baaa");
}

TEST(ParseGetArguments, SingleEmpty)
{
  IHttpHandler::GetArguments b;
  HttpToolbox::ParseGetArguments(b, "aaa");

  IHttpHandler::Arguments a;
  HttpToolbox::CompileGetArguments(a, b);

  ASSERT_EQ(1u, a.size());
  ASSERT_EQ(a["aaa"], "");
}

TEST(ParseGetQuery, Test1)
{
  UriComponents uri;
  IHttpHandler::GetArguments b;
  HttpToolbox::ParseGetQuery(uri, b, "/instances/test/world?aaa=baaa&bb=a&aa=c");

  IHttpHandler::Arguments a;
  HttpToolbox::CompileGetArguments(a, b);

  ASSERT_EQ(3u, uri.size());
  ASSERT_EQ("instances", uri[0]);
  ASSERT_EQ("test", uri[1]);
  ASSERT_EQ("world", uri[2]);
  ASSERT_EQ(3u, a.size());
  ASSERT_EQ(a["aaa"], "baaa");
  ASSERT_EQ(a["bb"], "a");
  ASSERT_EQ(a["aa"], "c");
}

TEST(ParseGetQuery, Test2)
{
  UriComponents uri;
  IHttpHandler::GetArguments b;
  HttpToolbox::ParseGetQuery(uri, b, "/instances/test/world");

  IHttpHandler::Arguments a;
  HttpToolbox::CompileGetArguments(a, b);

  ASSERT_EQ(3u, uri.size());
  ASSERT_EQ("instances", uri[0]);
  ASSERT_EQ("test", uri[1]);
  ASSERT_EQ("world", uri[2]);
  ASSERT_EQ(0u, a.size());
}

TEST(Uri, SplitUriComponents)
{
  UriComponents c, d;
  Toolbox::SplitUriComponents(c, "/cou/hello/world");
  ASSERT_EQ(3u, c.size());
  ASSERT_EQ("cou", c[0]);
  ASSERT_EQ("hello", c[1]);
  ASSERT_EQ("world", c[2]);

  Toolbox::SplitUriComponents(c, "/cou/hello/world/");
  ASSERT_EQ(3u, c.size());
  ASSERT_EQ("cou", c[0]);
  ASSERT_EQ("hello", c[1]);
  ASSERT_EQ("world", c[2]);

  Toolbox::SplitUriComponents(c, "/cou/hello/world/a");
  ASSERT_EQ(4u, c.size());
  ASSERT_EQ("cou", c[0]);
  ASSERT_EQ("hello", c[1]);
  ASSERT_EQ("world", c[2]);
  ASSERT_EQ("a", c[3]);

  Toolbox::SplitUriComponents(c, "/");
  ASSERT_EQ(0u, c.size());

  Toolbox::SplitUriComponents(c, "/hello");
  ASSERT_EQ(1u, c.size());
  ASSERT_EQ("hello", c[0]);

  Toolbox::SplitUriComponents(c, "/hello/");
  ASSERT_EQ(1u, c.size());
  ASSERT_EQ("hello", c[0]);

  ASSERT_THROW(Toolbox::SplitUriComponents(c, ""), OrthancException);
  ASSERT_THROW(Toolbox::SplitUriComponents(c, "a"), OrthancException);
  ASSERT_THROW(Toolbox::SplitUriComponents(c, "/coucou//coucou"), OrthancException);

  c.clear();
  c.push_back("test");
  ASSERT_EQ("/", Toolbox::FlattenUri(c, 10));
}


TEST(Uri, Truncate)
{
  UriComponents c, d;
  Toolbox::SplitUriComponents(c, "/cou/hello/world");

  Toolbox::TruncateUri(d, c, 0);
  ASSERT_EQ(3u, d.size());
  ASSERT_EQ("cou", d[0]);
  ASSERT_EQ("hello", d[1]);
  ASSERT_EQ("world", d[2]);

  Toolbox::TruncateUri(d, c, 1);
  ASSERT_EQ(2u, d.size());
  ASSERT_EQ("hello", d[0]);
  ASSERT_EQ("world", d[1]);

  Toolbox::TruncateUri(d, c, 2);
  ASSERT_EQ(1u, d.size());
  ASSERT_EQ("world", d[0]);

  Toolbox::TruncateUri(d, c, 3);
  ASSERT_EQ(0u, d.size());

  Toolbox::TruncateUri(d, c, 4);
  ASSERT_EQ(0u, d.size());

  Toolbox::TruncateUri(d, c, 5);
  ASSERT_EQ(0u, d.size());
}


TEST(Uri, Child)
{
  UriComponents c1;  Toolbox::SplitUriComponents(c1, "/hello/world");  
  UriComponents c2;  Toolbox::SplitUriComponents(c2, "/hello/hello");  
  UriComponents c3;  Toolbox::SplitUriComponents(c3, "/hello");  
  UriComponents c4;  Toolbox::SplitUriComponents(c4, "/world");  
  UriComponents c5;  Toolbox::SplitUriComponents(c5, "/");  

  ASSERT_TRUE(Toolbox::IsChildUri(c1, c1));
  ASSERT_FALSE(Toolbox::IsChildUri(c1, c2));
  ASSERT_FALSE(Toolbox::IsChildUri(c1, c3));
  ASSERT_FALSE(Toolbox::IsChildUri(c1, c4));
  ASSERT_FALSE(Toolbox::IsChildUri(c1, c5));

  ASSERT_FALSE(Toolbox::IsChildUri(c2, c1));
  ASSERT_TRUE(Toolbox::IsChildUri(c2, c2));
  ASSERT_FALSE(Toolbox::IsChildUri(c2, c3));
  ASSERT_FALSE(Toolbox::IsChildUri(c2, c4));
  ASSERT_FALSE(Toolbox::IsChildUri(c2, c5));

  ASSERT_TRUE(Toolbox::IsChildUri(c3, c1));
  ASSERT_TRUE(Toolbox::IsChildUri(c3, c2));
  ASSERT_TRUE(Toolbox::IsChildUri(c3, c3));
  ASSERT_FALSE(Toolbox::IsChildUri(c3, c4));
  ASSERT_FALSE(Toolbox::IsChildUri(c3, c5));

  ASSERT_FALSE(Toolbox::IsChildUri(c4, c1));
  ASSERT_FALSE(Toolbox::IsChildUri(c4, c2));
  ASSERT_FALSE(Toolbox::IsChildUri(c4, c3));
  ASSERT_TRUE(Toolbox::IsChildUri(c4, c4));
  ASSERT_FALSE(Toolbox::IsChildUri(c4, c5));

  ASSERT_TRUE(Toolbox::IsChildUri(c5, c1));
  ASSERT_TRUE(Toolbox::IsChildUri(c5, c2));
  ASSERT_TRUE(Toolbox::IsChildUri(c5, c3));
  ASSERT_TRUE(Toolbox::IsChildUri(c5, c4));
  ASSERT_TRUE(Toolbox::IsChildUri(c5, c5));
}

TEST(Uri, AutodetectMimeType)
{
  ASSERT_EQ("", Toolbox::AutodetectMimeType("../NOTES"));
  ASSERT_EQ("", Toolbox::AutodetectMimeType(""));
  ASSERT_EQ("", Toolbox::AutodetectMimeType("/"));
  ASSERT_EQ("", Toolbox::AutodetectMimeType("a/a"));

  ASSERT_EQ("text/plain", Toolbox::AutodetectMimeType("../NOTES.txt"));
  ASSERT_EQ("text/plain", Toolbox::AutodetectMimeType("../coucou.xml/NOTES.txt"));
  ASSERT_EQ("text/xml", Toolbox::AutodetectMimeType("../.xml"));

  ASSERT_EQ("application/javascript", Toolbox::AutodetectMimeType("NOTES.js"));
  ASSERT_EQ("application/json", Toolbox::AutodetectMimeType("NOTES.json"));
  ASSERT_EQ("application/pdf", Toolbox::AutodetectMimeType("NOTES.pdf"));
  ASSERT_EQ("text/css", Toolbox::AutodetectMimeType("NOTES.css"));
  ASSERT_EQ("text/html", Toolbox::AutodetectMimeType("NOTES.html"));
  ASSERT_EQ("text/plain", Toolbox::AutodetectMimeType("NOTES.txt"));
  ASSERT_EQ("text/xml", Toolbox::AutodetectMimeType("NOTES.xml"));
  ASSERT_EQ("image/gif", Toolbox::AutodetectMimeType("NOTES.gif"));
  ASSERT_EQ("image/jpeg", Toolbox::AutodetectMimeType("NOTES.jpg"));
  ASSERT_EQ("image/jpeg", Toolbox::AutodetectMimeType("NOTES.jpeg"));
  ASSERT_EQ("image/png", Toolbox::AutodetectMimeType("NOTES.png"));
}

TEST(Toolbox, ComputeMD5)
{
  std::string s;

  // # echo -n "Hello" | md5sum

  Toolbox::ComputeMD5(s, "Hello");
  ASSERT_EQ("8b1a9953c4611296a827abf8c47804d7", s);
  Toolbox::ComputeMD5(s, "");
  ASSERT_EQ("d41d8cd98f00b204e9800998ecf8427e", s);
}

TEST(Toolbox, ComputeSHA1)
{
  std::string s;
  
  Toolbox::ComputeSHA1(s, "The quick brown fox jumps over the lazy dog");
  ASSERT_EQ("2fd4e1c6-7a2d28fc-ed849ee1-bb76e739-1b93eb12", s);
  Toolbox::ComputeSHA1(s, "");
  ASSERT_EQ("da39a3ee-5e6b4b0d-3255bfef-95601890-afd80709", s);
}


static std::string EncodeBase64Bis(const std::string& s)
{
  std::string result;
  Toolbox::EncodeBase64(result, s);
  return result;
}


TEST(Toolbox, Base64)
{
  ASSERT_EQ("", EncodeBase64Bis(""));
  ASSERT_EQ("YQ==", EncodeBase64Bis("a"));

  const std::string hello = "SGVsbG8gd29ybGQ=";
  ASSERT_EQ(hello, EncodeBase64Bis("Hello world"));

  std::string decoded;
  Toolbox::DecodeBase64(decoded, hello);
  ASSERT_EQ("Hello world", decoded);
}

TEST(Toolbox, PathToExecutable)
{
  printf("[%s]\n", Toolbox::GetPathToExecutable().c_str());
  printf("[%s]\n", Toolbox::GetDirectoryOfExecutable().c_str());
}

TEST(Toolbox, StripSpaces)
{
  ASSERT_EQ("", Toolbox::StripSpaces("       \t  \r   \n  "));
  ASSERT_EQ("coucou", Toolbox::StripSpaces("    coucou   \t  \r   \n  "));
  ASSERT_EQ("cou   cou", Toolbox::StripSpaces("    cou   cou    \n  "));
  ASSERT_EQ("c", Toolbox::StripSpaces("    \n\t c\r    \n  "));
}

TEST(Toolbox, Case)
{
  std::string s = "CoU";
  std::string ss;

  Toolbox::ToUpperCase(ss, s);
  ASSERT_EQ("COU", ss);
  Toolbox::ToLowerCase(ss, s);
  ASSERT_EQ("cou", ss); 

  s = "CoU";
  Toolbox::ToUpperCase(s);
  ASSERT_EQ("COU", s);

  s = "CoU";
  Toolbox::ToLowerCase(s);
  ASSERT_EQ("cou", s);
}


TEST(Logger, Basic)
{
  LOG(INFO) << "I say hello";
}

TEST(Toolbox, ConvertFromLatin1)
{
  // This is a Latin-1 test string
  const unsigned char data[10] = { 0xe0, 0xe9, 0xea, 0xe7, 0x26, 0xc6, 0x61, 0x62, 0x63, 0x00 };
  
  /*FILE* f = fopen("/tmp/tutu", "w");
  fwrite(&data[0], 9, 1, f);
  fclose(f);*/

  std::string s((char*) &data[0], 10);
  ASSERT_EQ("&abc", Toolbox::ConvertToAscii(s));

  // Open in Emacs, then save with UTF-8 encoding, then "hexdump -C"
  std::string utf8 = Toolbox::ConvertToUtf8(s, Encoding_Latin1);
  ASSERT_EQ(15u, utf8.size());
  ASSERT_EQ(0xc3, static_cast<unsigned char>(utf8[0]));
  ASSERT_EQ(0xa0, static_cast<unsigned char>(utf8[1]));
  ASSERT_EQ(0xc3, static_cast<unsigned char>(utf8[2]));
  ASSERT_EQ(0xa9, static_cast<unsigned char>(utf8[3]));
  ASSERT_EQ(0xc3, static_cast<unsigned char>(utf8[4]));
  ASSERT_EQ(0xaa, static_cast<unsigned char>(utf8[5]));
  ASSERT_EQ(0xc3, static_cast<unsigned char>(utf8[6]));
  ASSERT_EQ(0xa7, static_cast<unsigned char>(utf8[7]));
  ASSERT_EQ(0x26, static_cast<unsigned char>(utf8[8]));
  ASSERT_EQ(0xc3, static_cast<unsigned char>(utf8[9]));
  ASSERT_EQ(0x86, static_cast<unsigned char>(utf8[10]));
  ASSERT_EQ(0x61, static_cast<unsigned char>(utf8[11]));
  ASSERT_EQ(0x62, static_cast<unsigned char>(utf8[12]));
  ASSERT_EQ(0x63, static_cast<unsigned char>(utf8[13]));
  ASSERT_EQ(0x00, static_cast<unsigned char>(utf8[14]));  // Null-terminated string
}

TEST(Toolbox, UrlDecode)
{
  std::string s;

  s = "Hello%20World";
  Toolbox::UrlDecode(s);
  ASSERT_EQ("Hello World", s);

  s = "%21%23%24%26%27%28%29%2A%2B%2c%2f%3A%3b%3d%3f%40%5B%5D%90%ff";
  Toolbox::UrlDecode(s);
  std::string ss = "!#$&'()*+,/:;=?@[]"; 
  ss.push_back((char) 144); 
  ss.push_back((char) 255);
  ASSERT_EQ(ss, s);

  s = "(2000%2C00A4)+Other";
  Toolbox::UrlDecode(s);
  ASSERT_EQ("(2000,00A4) Other", s);
}


#if defined(__linux)
TEST(OrthancInitialization, AbsoluteDirectory)
{
  ASSERT_EQ("/tmp/hello", Configuration::InterpretRelativePath("/tmp", "hello"));
  ASSERT_EQ("/tmp", Configuration::InterpretRelativePath("/tmp", "/tmp"));
}
#endif



#include "../OrthancServer/ServerEnumerations.h"

TEST(EnumerationDictionary, Simple)
{
  Toolbox::EnumerationDictionary<MetadataType>  d;

  ASSERT_THROW(d.Translate("ReceptionDate"), OrthancException);
  ASSERT_EQ(MetadataType_ModifiedFrom, d.Translate("5"));
  ASSERT_EQ(256, d.Translate("256"));

  d.Add(MetadataType_Instance_ReceptionDate, "ReceptionDate");

  ASSERT_EQ(MetadataType_Instance_ReceptionDate, d.Translate("ReceptionDate"));
  ASSERT_EQ(MetadataType_Instance_ReceptionDate, d.Translate("2"));
  ASSERT_EQ("ReceptionDate", d.Translate(MetadataType_Instance_ReceptionDate));

  ASSERT_THROW(d.Add(MetadataType_Instance_ReceptionDate, "Hello"), OrthancException);
  ASSERT_THROW(d.Add(MetadataType_ModifiedFrom, "ReceptionDate"), OrthancException); // already used
  ASSERT_THROW(d.Add(MetadataType_ModifiedFrom, "1024"), OrthancException); // cannot register numbers
  d.Add(MetadataType_ModifiedFrom, "ModifiedFrom");  // ok
}


TEST(EnumerationDictionary, ServerEnumerations)
{
  ASSERT_STREQ("Patient", EnumerationToString(ResourceType_Patient));
  ASSERT_STREQ("Study", EnumerationToString(ResourceType_Study));
  ASSERT_STREQ("Series", EnumerationToString(ResourceType_Series));
  ASSERT_STREQ("Instance", EnumerationToString(ResourceType_Instance));

  ASSERT_STREQ("ModifiedSeries", EnumerationToString(ChangeType_ModifiedSeries));

  ASSERT_STREQ("Failure", EnumerationToString(StoreStatus_Failure));
  ASSERT_STREQ("Success", EnumerationToString(StoreStatus_Success));

  ASSERT_STREQ("CompletedSeries", EnumerationToString(ChangeType_CompletedSeries));

  ASSERT_EQ("IndexInSeries", EnumerationToString(MetadataType_Instance_IndexInSeries));
  ASSERT_EQ("LastUpdate", EnumerationToString(MetadataType_LastUpdate));

  ASSERT_EQ(ResourceType_Patient, StringToResourceType("PATienT"));
  ASSERT_EQ(ResourceType_Study, StringToResourceType("STudy"));
  ASSERT_EQ(ResourceType_Series, StringToResourceType("SeRiEs"));
  ASSERT_EQ(ResourceType_Instance, StringToResourceType("INStance"));
  ASSERT_EQ(ResourceType_Instance, StringToResourceType("IMagE"));
  ASSERT_THROW(StringToResourceType("heLLo"), OrthancException);

  ASSERT_EQ(2047, StringToMetadata("2047"));
  ASSERT_THROW(StringToMetadata("Ceci est un test"), OrthancException);
  ASSERT_THROW(RegisterUserMetadata(128, ""), OrthancException); // too low (< 1024)
  ASSERT_THROW(RegisterUserMetadata(128000, ""), OrthancException); // too high (> 65535)
  RegisterUserMetadata(2047, "Ceci est un test");
  ASSERT_EQ(2047, StringToMetadata("2047"));
  ASSERT_EQ(2047, StringToMetadata("Ceci est un test"));

  ASSERT_STREQ("Generic", EnumerationToString(StringToModalityManufacturer("Generic")));
  ASSERT_STREQ("StoreScp", EnumerationToString(StringToModalityManufacturer("StoreScp")));
  ASSERT_STREQ("ClearCanvas", EnumerationToString(StringToModalityManufacturer("ClearCanvas")));
  ASSERT_STREQ("MedInria", EnumerationToString(StringToModalityManufacturer("MedInria")));
  ASSERT_STREQ("Dcm4Chee", EnumerationToString(StringToModalityManufacturer("Dcm4Chee")));
  ASSERT_STREQ("SyngoVia", EnumerationToString(StringToModalityManufacturer("SyngoVia")));
}



TEST(Toolbox, WriteFile)
{
  std::string path;

  {
    Toolbox::TemporaryFile tmp;
    path = tmp.GetPath();

    std::string s;
    s.append("Hello");
    s.push_back('\0');
    s.append("World");
    ASSERT_EQ(11u, s.size());

    Toolbox::WriteFile(s, path.c_str());

    std::string t;
    Toolbox::ReadFile(t, path.c_str());

    ASSERT_EQ(11u, t.size());
    ASSERT_EQ(0, t[5]);
    ASSERT_EQ(0, memcmp(s.c_str(), t.c_str(), s.size()));
  }

  std::string u;
  ASSERT_THROW(Toolbox::ReadFile(u, path.c_str()), OrthancException);
}


TEST(Toolbox, Wildcard)
{
  ASSERT_EQ("abcd", Toolbox::WildcardToRegularExpression("abcd"));
  ASSERT_EQ("ab.*cd", Toolbox::WildcardToRegularExpression("ab*cd"));
  ASSERT_EQ("ab..cd", Toolbox::WildcardToRegularExpression("ab??cd"));
  ASSERT_EQ("a.*b.c.*d", Toolbox::WildcardToRegularExpression("a*b?c*d"));
  ASSERT_EQ("a\\{b\\]", Toolbox::WildcardToRegularExpression("a{b]"));
}


TEST(Toolbox, Tokenize)
{
  std::vector<std::string> t;
  
  Toolbox::TokenizeString(t, "", ','); 
  ASSERT_EQ(1u, t.size());
  ASSERT_EQ("", t[0]);
  
  Toolbox::TokenizeString(t, "abc", ','); 
  ASSERT_EQ(1u, t.size());
  ASSERT_EQ("abc", t[0]);
  
  Toolbox::TokenizeString(t, "ab,cd,ef,", ','); 
  ASSERT_EQ(4u, t.size());
  ASSERT_EQ("ab", t[0]);
  ASSERT_EQ("cd", t[1]);
  ASSERT_EQ("ef", t[2]);
  ASSERT_EQ("", t[3]);
}

TEST(Toolbox, Enumerations)
{
  ASSERT_EQ(Encoding_Utf8, StringToEncoding(EnumerationToString(Encoding_Utf8)));
  ASSERT_EQ(Encoding_Ascii, StringToEncoding(EnumerationToString(Encoding_Ascii)));
  ASSERT_EQ(Encoding_Latin1, StringToEncoding(EnumerationToString(Encoding_Latin1)));
  ASSERT_EQ(Encoding_Latin2, StringToEncoding(EnumerationToString(Encoding_Latin2)));
  ASSERT_EQ(Encoding_Latin3, StringToEncoding(EnumerationToString(Encoding_Latin3)));
  ASSERT_EQ(Encoding_Latin4, StringToEncoding(EnumerationToString(Encoding_Latin4)));
  ASSERT_EQ(Encoding_Latin5, StringToEncoding(EnumerationToString(Encoding_Latin5)));
  ASSERT_EQ(Encoding_Cyrillic, StringToEncoding(EnumerationToString(Encoding_Cyrillic)));
  ASSERT_EQ(Encoding_Arabic, StringToEncoding(EnumerationToString(Encoding_Arabic)));
  ASSERT_EQ(Encoding_Greek, StringToEncoding(EnumerationToString(Encoding_Greek)));
  ASSERT_EQ(Encoding_Hebrew, StringToEncoding(EnumerationToString(Encoding_Hebrew)));
  ASSERT_EQ(Encoding_Japanese, StringToEncoding(EnumerationToString(Encoding_Japanese)));
  ASSERT_EQ(Encoding_Chinese, StringToEncoding(EnumerationToString(Encoding_Chinese)));
  ASSERT_EQ(Encoding_Thai, StringToEncoding(EnumerationToString(Encoding_Thai)));

  ASSERT_EQ(ResourceType_Patient, StringToResourceType(EnumerationToString(ResourceType_Patient)));
  ASSERT_EQ(ResourceType_Study, StringToResourceType(EnumerationToString(ResourceType_Study)));
  ASSERT_EQ(ResourceType_Series, StringToResourceType(EnumerationToString(ResourceType_Series)));
  ASSERT_EQ(ResourceType_Instance, StringToResourceType(EnumerationToString(ResourceType_Instance)));

  ASSERT_EQ(ImageFormat_Png, StringToImageFormat(EnumerationToString(ImageFormat_Png)));
}



#if defined(__linux)
#include <endian.h>
#elif defined(__FreeBSD__)
#include <machine/endian.h>
#endif


TEST(Toolbox, Endianness)
{
  // Parts of this test come from Adam Conrad
  // http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=728822#5


  /**
   * Windows and OS X are assumed to always little-endian.
   **/
  
#if defined(_WIN32) || defined(__APPLE__)
  ASSERT_EQ(Endianness_Little, Toolbox::DetectEndianness());


  /**
   * Linux.
   **/
  
#elif defined(__linux) || defined(__FreeBSD_kernel__)

#if !defined(__BYTE_ORDER)
#  error Support your platform here
#endif

#  if __BYTE_ORDER == __BIG_ENDIAN
  ASSERT_EQ(Endianness_Big, Toolbox::DetectEndianness());
#  else // __LITTLE_ENDIAN
  ASSERT_EQ(Endianness_Little, Toolbox::DetectEndianness());
#  endif

  
  /**
   * FreeBSD.
   **/
  
#elif defined(__FreeBSD__)
#  if _BYTE_ORDER == _BIG_ENDIAN
   ASSERT_EQ(Endianness_Big, Toolbox::DetectEndianness());
#  else // _LITTLE_ENDIAN
   ASSERT_EQ(Endianness_Little, Toolbox::DetectEndianness());
#  endif

#else
#error Support your platform here
#endif
}


#if ORTHANC_PUGIXML_ENABLED == 1
TEST(Toolbox, Xml)
{
  Json::Value a;
  a["hello"] = "world";
  a["42"] = 43;
  a["b"] = Json::arrayValue;
  a["b"].append("test");
  a["b"].append("test2");

  std::string s;
  Toolbox::JsonToXml(s, a);

  std::cout << s;
}
#endif


#if !defined(_WIN32)
TEST(Toolbox, ExecuteSystemCommand)
{
  std::vector<std::string> args(2);
  args[0] = "Hello";
  args[1] = "World";

  Toolbox::ExecuteSystemCommand("echo", args);
}
#endif


TEST(Toolbox, IsInteger)
{
  ASSERT_TRUE(Toolbox::IsInteger("00236"));
  ASSERT_TRUE(Toolbox::IsInteger("-0042"));
  ASSERT_TRUE(Toolbox::IsInteger("0"));
  ASSERT_TRUE(Toolbox::IsInteger("-0"));

  ASSERT_FALSE(Toolbox::IsInteger(""));
  ASSERT_FALSE(Toolbox::IsInteger("42a"));
  ASSERT_FALSE(Toolbox::IsInteger("42-"));
}


TEST(Toolbox, StartsWith)
{
  ASSERT_TRUE(Toolbox::StartsWith("hello world", ""));
  ASSERT_TRUE(Toolbox::StartsWith("hello world", "hello"));
  ASSERT_TRUE(Toolbox::StartsWith("hello world", "h"));
  ASSERT_FALSE(Toolbox::StartsWith("hello world", "H"));
  ASSERT_FALSE(Toolbox::StartsWith("h", "hello"));
  ASSERT_TRUE(Toolbox::StartsWith("h", "h"));
  ASSERT_FALSE(Toolbox::StartsWith("", "h"));
}


int main(int argc, char **argv)
{
  Logging::Initialize();
  Logging::EnableInfoLevel(true);
  Toolbox::DetectEndianness();
  Toolbox::MakeDirectory("UnitTestsResults");
  OrthancInitialize();

  ::testing::InitGoogleTest(&argc, argv);
  int result = RUN_ALL_TESTS();

  OrthancFinalize();
  Logging::Finalize();

  return result;
}