string_test.cpp

symbian 上的stl_port进过编译的。

//To make GLib C++ closer to STLport behavior we need this macro:
//Only mandatory when building unit tests without STLport, do not change
//anything when building with STLport
#define _GLIBCXX_FULLY_DYNAMIC_STRING

//Has to be first for StackAllocator swap overload to be taken
//into account (at least using GCC 4.0.1)
#include "stack_allocator.h"

#include <vector>
#include <deque>
#include <string>
#include <algorithm>
#if !defined (STLPORT) || !defined (_STLP_USE_NO_IOSTREAMS)
#  include <sstream>
#endif

#if !defined (STLPORT) || defined (_STLP_USE_EXCEPTIONS)
#  include <stdexcept>
#endif

#if !defined (STLPORT) || defined (_STLP_THREADS)
#  if defined (STLPORT) && defined (_STLP_PTHREADS) || \
      defined (__GNUC__) && !defined (__MINGW32__)
#    define USE_PTHREAD_API
#    include <pthread.h>
#  endif

#  if defined (STLPORT) && defined (_STLP_WIN32THREADS) || \
      defined (__GNUC__) && defined (__MINGW32__) || \
      defined (_MSC_VER)
#    define USE_WINDOWS_API
#    include <windows.h>
#  endif
#endif

#include "stack_allocator.h"
#include "cppunit/cppunit_proxy.h"

#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
using namespace std;
#endif

//
// TestCase class
//
class StringTest : public CPPUNIT_NS::TestCase
{
  CPPUNIT_TEST_SUITE(StringTest);
  CPPUNIT_TEST(constructor);
  CPPUNIT_TEST(reserve);
  CPPUNIT_TEST(assign);
  CPPUNIT_TEST(erase);
  CPPUNIT_TEST(data);
  CPPUNIT_TEST(c_str);
  CPPUNIT_TEST(null_char);
  CPPUNIT_TEST(insert);
  CPPUNIT_TEST(replace);
  CPPUNIT_TEST(resize);
  CPPUNIT_TEST(short_string);
  CPPUNIT_TEST(find);
  CPPUNIT_TEST(rfind);
  CPPUNIT_TEST(find_last_of);
  CPPUNIT_TEST(find_last_not_of);
  CPPUNIT_TEST(copy);
#if !defined (USE_PTHREAD_API) && !defined (USE_WINDOWS_API)
  CPPUNIT_IGNORE;
#endif
  CPPUNIT_TEST(mt);
  CPPUNIT_STOP_IGNORE;
  CPPUNIT_TEST(short_string_optim_bug);
  CPPUNIT_TEST(compare);
#if defined (__DMC__)
  CPPUNIT_IGNORE;
#endif
  CPPUNIT_TEST(template_expression);
#if defined (STLPORT) && defined (_STLP_MSVC) && (_STLP_MSVC < 1300)
#  define TE_TMP_TEST_IGNORED
  CPPUNIT_IGNORE;
#endif
  CPPUNIT_TEST(te_tmp);
#if defined (TE_TMP_TEST_IGNORED)
  CPPUNIT_STOP_IGNORE;
#endif
#if defined (STLPORT) && defined (_STLP_NO_WCHAR_T)
  CPPUNIT_IGNORE;
#endif
#if defined (__CYGWIN__) && !defined (STLPORT)
  CPPUNIT_IGNORE;
#endif
  CPPUNIT_TEST(template_wexpression);
  CPPUNIT_STOP_IGNORE;
#if defined (STLPORT) && defined (_STLP_USE_NO_IOSTREAMS)
  CPPUNIT_IGNORE;
#endif
  CPPUNIT_TEST(io);
  CPPUNIT_STOP_IGNORE;
#if defined (STLPORT) && defined (_STLP_NO_CUSTOM_IO) 
  CPPUNIT_IGNORE;
#endif
  CPPUNIT_TEST(allocator_with_state);
  CPPUNIT_STOP_IGNORE;
  CPPUNIT_TEST(capacity);
  CPPUNIT_TEST_SUITE_END();

protected:
  void constructor();
  void reserve();
  void erase();
  void data();
  void c_str();
  void null_char();
  void insert();
  void replace();
  void resize();
  void short_string();
  void find();
  void rfind();
  void find_last_of();
  void find_last_not_of();
  void copy();
  void assign();
  void mt();
  void short_string_optim_bug();
  void compare();
  void template_expression();
  void te_tmp();
  void template_wexpression();
  void io();
  void allocator_with_state();
  void capacity();

  static string func(const string& par) {
    string tmp( par );
    return tmp;
  }

#if defined (USE_PTHREAD_API) || defined (USE_WINDOWS_API)
#  if defined (USE_PTHREAD_API)
  static void* f(void*)
#  else
  static DWORD __stdcall f(void*)
#  endif
  {
    string s( "qyweyuewunfkHBUKGYUGL,wehbYGUW^(@T@H!BALWD:h^&@#*@(#:JKHWJ:CND" );

    for ( int i = 0; i < 2000000; ++i ) {
      string sx = func( s );
    }

    return 0;
  }
#endif

};

CPPUNIT_TEST_SUITE_REGISTRATION(StringTest);

//
// tests implementation
//
void StringTest::constructor()
{
#if !defined (STLPORT) || defined (_STLP_USE_EXCEPTIONS)
  try {
    string s((size_t)-1, 'a');
    CPPUNIT_ASSERT( false );
  }
  catch (length_error const&) {
  }
  catch (...) {
    //Expected exception is length_error:
    CPPUNIT_ASSERT( false );
  }
#endif
}

void StringTest::reserve()
{
  string s;
#if !defined (STLPORT) || defined (_STLP_USE_EXCEPTIONS)
  try {
    s.reserve(s.max_size() + 1);
    CPPUNIT_ASSERT( false );
  }
  catch (length_error const&) {
  }
  catch (...) {
    //Expected exception is length_error:
    CPPUNIT_ASSERT( false );
  }
#endif
}

void StringTest::mt()
{
#if defined (USE_PTHREAD_API) || defined (USE_WINDOWS_API)
  const int nth = 2;
#  if defined (USE_PTHREAD_API)
  pthread_t t[nth];

  for ( int i = 0; i < nth; ++i ) {
    pthread_create( &t[i], 0, f, 0 );
  }

  for ( int i = 0; i < nth; ++i ) {
    pthread_join( t[i], 0 );
  }
#  endif // PTHREAD

#  if defined (USE_WINDOWS_API)
  //DWORD start = GetTickCount();

  HANDLE t[nth];

  int i; // VC6 not support in-loop scope of cycle var
  for ( i = 0; i < nth; ++i ) {
    t[i] = CreateThread(NULL, 0, f, 0, 0, NULL);
  }

  if (WaitForMultipleObjects(nth, t, TRUE, INFINITE) == WAIT_FAILED) {
    // On some platforms (evc3/evc4) WaitForMultipleObjects() with fWaitAll == TRUE
    // is not supported. We then wait with a loop on each thread:
    for ( i = 0; i < nth; ++i ) {
      WaitForSingleObject(t[i], INFINITE);
    }
  }

  /*
  DWORD duration = GetTickCount() - start;
  ostringstream ostr;
  ostr << "Duration: " << duration << endl;
  CPPUNIT_MESSAGE(ostr.str().c_str());
  */
#  endif
#endif
}

void StringTest::short_string()
{
  string const ref_short_str1("str1"), ref_short_str2("str2");
  string short_str1(ref_short_str1), short_str2(ref_short_str2);
  string const ref_long_str1("str                                                  1");
  string const ref_long_str2("str                                                  2");
  string long_str1(ref_long_str1), long_str2(ref_long_str2);

  CPPUNIT_ASSERT(short_str1 == ref_short_str1);
  CPPUNIT_ASSERT(long_str1 == ref_long_str1);

  {
    string str1(short_str1);
    str1 = long_str1;
    CPPUNIT_ASSERT(str1 == ref_long_str1);
  }

  {
    string str1(long_str1);
    str1 = short_str1;
    CPPUNIT_ASSERT(str1 == ref_short_str1);
  }

  {
    short_str1.swap(short_str2);
    CPPUNIT_ASSERT((short_str1 == ref_short_str2) && (short_str2 == ref_short_str1));
    short_str1.swap(short_str2);
  }

  {
    long_str1.swap(long_str2);
    CPPUNIT_ASSERT((long_str1 == ref_long_str2) && (long_str2 == ref_long_str1));
    long_str1.swap(long_str2);
  }

  {
    short_str1.swap(long_str1);
    CPPUNIT_ASSERT((short_str1 == ref_long_str1) && (long_str1 == ref_short_str1));
    short_str1.swap(long_str1);
  }

  {
    long_str1.swap(short_str1);
    CPPUNIT_ASSERT((short_str1 == ref_long_str1) && (long_str1 == ref_short_str1));
    long_str1.swap(short_str1);
  }

  {
    //This is to test move constructor
    vector<string> str_vect;
    str_vect.push_back(short_str1);
    str_vect.push_back(long_str1);
    str_vect.push_back(short_str2);
    str_vect.push_back(long_str2);
    CPPUNIT_ASSERT((str_vect[0] == ref_short_str1) &&
                   (str_vect[1] == ref_long_str1) &&
                   (str_vect[2] == ref_short_str2) &&
                   (str_vect[3] == ref_long_str2));
  }
}

void StringTest::erase()
{
  char const* c_str = "Hello, World!";
  string str(c_str);
  CPPUNIT_ASSERT( str == c_str );

  str.erase(str.begin() + 1, str.end() - 1); // Erase all but first and last.

  size_t i;
  for (i = 0; i < str.size(); ++i) {
    switch ( i ) {
      case 0:
        CPPUNIT_ASSERT( str[i] == 'H' );
        break;
      case 1:
        CPPUNIT_ASSERT( str[i] == '!' );
        break;
      default:
        CPPUNIT_ASSERT( false );
    }
  }

  str.insert(1, c_str);
  str.erase(str.begin()); // Erase first element.
  str.erase(str.end() - 1); // Erase last element.
  CPPUNIT_ASSERT( str == c_str );
  str.clear(); // Erase all.
  CPPUNIT_ASSERT( str.empty() );

  str = c_str;
  CPPUNIT_ASSERT( str == c_str );

  str.erase(1, str.size() - 1); // Erase all but first and last.
  for (i = 0; i < str.size(); i++) {
    switch ( i ) {
      case 0:
        CPPUNIT_ASSERT( str[i] == 'H' );
        break;
      case 1:
        CPPUNIT_ASSERT( str[i] == '!' );
        break;
      default:
        CPPUNIT_ASSERT( false );
    }
  }

  str.erase(1);
  CPPUNIT_ASSERT( str == "H" );
}

void StringTest::data()
{
  string xx;

  CPPUNIT_ASSERT( xx.data() != 0 );  // ISO-IEC-14882:1998(E), 21.3.6, paragraph 3
#if 0
  /* This test really not required: in ISO-IEC-14882:1998(E) paragraph 3 stated:
   * '... and can have zero added to it', again: 'CAN', but not 'MUST'.
   * That's why I am comment this test. But I don't remove it due to I had
   * unevident problem with misinterpretation of data() return (i.e. data()
   * and c_str() provide different functionality!) and expect that this is
   * more-or-less common pitfall.
   *    - ptr
   */
  string low( "2004-01-01" );
  // Blocks A and B should follow each other.
  // Block A:
  xx = "123456";
  xx += low;
  if ( strcmp( xx.data(), "1234562004-01-01" ) != 0 ) {
    return -1;
  }
  // End of block A

  // Block B:
  xx = "1234";
  xx += ";";

  if ( strcmp( xx.data(), "1234;" ) != 0 ) {
    return -1;
  }
  // End of block B
#endif
}

void StringTest::c_str()
{
  string low( "2004-01-01" );
  string xx;
  string yy;

  CPPUNIT_ASSERT( *(yy.c_str()) == '\0' ); // ISO-IEC-14882:1998(E), 21.3.6, paragraph 1

  // Blocks A and B should follow each other.
  // Block A:
  xx = "123456";
  xx += low;
  CPPUNIT_ASSERT( strcmp( xx.c_str(), "1234562004-01-01" ) == 0 );
  // End of block A

  // Block B:
  xx = "1234";
  xx += ";";
  CPPUNIT_ASSERT( strcmp( xx.c_str(), "1234;" ) == 0 );
  // End of block B
}

void StringTest::null_char()
{
  // ISO/IEC 14882:1998(E), ISO/IEC 14882:2003(E), 21.3.4 ('... the const version')
  const string s( "123456" );

  CPPUNIT_CHECK( s[s.size()] == '\0' );

#if !defined (STLPORT) || defined (_STLP_USE_EXCEPTIONS)
  try {
    //Check is only here to avoid warning about value of expression not used
    CPPUNIT_CHECK( s.at(s.size()) == '\0' );
    CPPUNIT_ASSERT( false );
  }