/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

//Small header to get STLport numerous defines:

#include <utility>

#if defined (STLPORT) && !defined (_STLP_NO_EXTENSIONS)

#  include <rope>

#  if !defined (_STLP_USE_NO_IOSTREAMS)

#    include <sstream>

#  endif

#endif

#include "cppunit/cppunit_proxy.h"

// #include <stdlib.h> // for rand etc

#if defined (_STLP_USE_NAMESPACES)

using namespace std;

#endif

//

// TestCase class

//

class RopeTest : public CPPUNIT_NS::TestCase

{

  CPPUNIT_TEST_SUITE(RopeTest);

#if !defined (STLPORT) || defined (_STLP_NO_EXTENSIONS) || defined (_STLP_USE_NO_IOSTREAMS)

  CPPUNIT_IGNORE;

#endif

  CPPUNIT_TEST(io);

#if defined (_STLP_USE_NO_IOSTREAMS)

  CPPUNIT_STOP_IGNORE;

#endif

  CPPUNIT_TEST(find1);

  CPPUNIT_TEST(find2);

  CPPUNIT_TEST(construct_from_char);

  CPPUNIT_TEST(bug_report);

#if !defined (_STLP_MEMBER_TEMPLATES)

  CPPUNIT_IGNORE;

#endif

  CPPUNIT_TEST(test_saved_rope_iterators);

  CPPUNIT_TEST_SUITE_END();

protected:

  void io();

  void find1();

  void find2();

  void construct_from_char();

  void bug_report();

  void test_saved_rope_iterators();

};

CPPUNIT_TEST_SUITE_REGISTRATION(RopeTest);

//

// tests implementation

//

void RopeTest::io()

{

#if defined (STLPORT) && !defined (_STLP_NO_EXTENSIONS) && !defined (_STLP_USE_NO_IOSTREAMS) 

  char const* cstr = "rope test string";

  crope rstr(cstr);

  {

    ostringstream ostr;

    ostr << rstr;

    CPPUNIT_ASSERT( ostr );

    CPPUNIT_ASSERT( ostr.str() == cstr );

  }

#endif

}

void RopeTest::find1()

{

#if defined (STLPORT) && !defined (_STLP_NO_EXTENSIONS) 

  crope r("Fuzzy Wuzzy was a bear");

  crope::size_type n = r.find( "hair" );

  CPPUNIT_ASSERT( n == crope::npos );

  n = r.find("ear");

  CPPUNIT_ASSERT( n == (r.size() - 3) );

#endif

}

void RopeTest::find2()

{

#if defined (STLPORT) && !defined (_STLP_NO_EXTENSIONS) 

  crope r("Fuzzy Wuzzy was a bear");

  crope::size_type n = r.find( 'e' );

  CPPUNIT_ASSERT( n == (r.size() - 3) );

#endif

}

void RopeTest::construct_from_char()

{

#if defined (STLPORT) && !defined (_STLP_NO_EXTENSIONS) 

  crope r('1');

  char const* s = r.c_str();

  CPPUNIT_ASSERT( '1' == s[0] && '\0' == s[1] );

#endif

}

// Test used for a bug report from Peter Hercek

void RopeTest::bug_report()

{

#if defined (STLPORT) && !defined (_STLP_NO_EXTENSIONS) 

  //first create a rope bigger than crope::_S_copy_max = 23

  // so that any string addition is added to a new leaf

  crope evilRope("12345678901234567890123_");

  //crope* pSevenCharRope( new TRope("1234567") );

  crope sevenCharRope0("12345678");

  crope sevenCharRope1("1234567");

  // add _Rope_RopeRep<c,a>::_S_alloc_granularity-1 = 7 characters

  evilRope += "1234567"; // creates a new leaf

  crope sevenCharRope2("1234567");

  // add one more character to the leaf

  evilRope += '8'; // here is the write beyond the allocated memory

  CPPUNIT_ASSERT( strcmp(sevenCharRope2.c_str(), "1234567") == 0 );

#endif

}

#if defined (STLPORT) && !defined (_STLP_NO_EXTENSIONS)

const char str[] = "ilcpsklryvmcpjnbpbwllsrehfmxrkecwitrsglrexvtjmxypu\

nbqfgxmuvgfajclfvenhyuhuorjosamibdnjdbeyhkbsomblto\

uujdrbwcrrcgbflqpottpegrwvgajcrgwdlpgitydvhedtusip\

pyvxsuvbvfenodqasajoyomgsqcpjlhbmdahyviuemkssdslde\

besnnngpesdntrrvysuipywatpfoelthrowhfexlwdysvspwlk\

fblfdf";

crope create_rope( int len )

{

   int l = len/2;

   crope result;

   if(l <= 2)

   {

      static int j = 0;

      for(int i = 0; i < len; ++i)

      {

         // char c = 'a' + rand() % ('z' - 'a');

         result.append(1, /* c */ str[j++] );

         j %= sizeof(str);

      }

   }

   else

   {

      result = create_rope(len/2);

      result.append(create_rope(len/2));

   }

   return result;

}

#endif

void RopeTest::test_saved_rope_iterators()

{

#if defined (STLPORT) && !defined (_STLP_NO_EXTENSIONS) && \

    defined (_STLP_MEMBER_TEMPLATES)

   //

   // Try and create a rope with a complex tree structure:

   //

   // srand(0);

   crope r = create_rope(300);

   string expected(r.begin(), r.end());

   CPPUNIT_ASSERT(expected.size() == r.size());

   CPPUNIT_ASSERT(equal(expected.begin(), expected.end(), r.begin()));

   crope::const_iterator i(r.begin()), j(r.end());

   int pos = 0;

   while(i != j)

   {

      crope::const_iterator k;

      // This initial read triggers the bug:

      CPPUNIT_ASSERT(*i);

      k = i;

      int newpos = pos;

      // Now make sure that i is incremented into the next leaf:

      while(i != j)

      {

         CPPUNIT_ASSERT(*i == expected[newpos]);

         ++i;

         ++newpos;

      }

      // Back up from stored value and continue:

      i = k;

      ++i;

      ++pos;

   }

#endif

}