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os/ossrv/genericopenlibs/cppstdlib/stl/test/unit/sstream_test.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution. 
     1 #include <string>

     2 #include "math_aux.h"

     3 

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

     5 #  include <sstream>

     6 #  include <memory>

     7 

     8 #  include "full_streambuf.h"

     9 

    10 #  include "cppunit/cppunit_proxy.h"

    11 

    12 #  if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)

    13 using namespace std;

    14 #  endif

    15 

    16 //

    17 // TestCase class

    18 //

    19 class SstreamTest : public CPPUNIT_NS::TestCase

    20 {

    21   CPPUNIT_TEST_SUITE(SstreamTest);

    22   CPPUNIT_TEST(output);

    23   CPPUNIT_TEST(input);

    24   CPPUNIT_TEST(input_char);

    25   CPPUNIT_TEST(io);

    26   CPPUNIT_TEST(err);

    27   CPPUNIT_TEST(err_long);

    28   CPPUNIT_TEST(maxint);

    29   CPPUNIT_TEST(init_in);

    30   CPPUNIT_TEST(init_out);

    31   CPPUNIT_TEST(buf);

    32   CPPUNIT_TEST(rdbuf);

    33   CPPUNIT_TEST(streambuf_output);

    34   CPPUNIT_TEST(seek);

    35   CPPUNIT_TEST(negative);

    36   CPPUNIT_TEST_SUITE_END();

    37 

    38   protected:

    39     void output();

    40     void input();

    41     void input_char();

    42     void io();

    43     void err();

    44     void err_long();

    45     void maxint();

    46     void init_in();

    47     void init_out();

    48     void buf();

    49     void rdbuf();

    50     void streambuf_output();

    51     void seek();

    52     void negative();

    53 };

    54 

    55 CPPUNIT_TEST_SUITE_REGISTRATION(SstreamTest);

    56 

    57 //

    58 // tests implementation

    59 //

    60 void SstreamTest::output()

    61 {

    62   {

    63     ostringstream s;

    64 

    65     s << 1 << '\n' << 2.0 << '\n' << "abcd\n" << "ghk lm\n" << "abcd ef";

    66     CPPUNIT_ASSERT( s.good() );

    67     CPPUNIT_ASSERT( s.str() == "1\n2\nabcd\nghk lm\nabcd ef" );

    68   }

    69 

    70   //Following tests are mostly used to reveal problem with the MSVC /Wp64 option

    71   //used to track 64 bits portability issue:

    72   {

    73     ostringstream s;

    74     size_t i = 0;

    75     s << i;

    76     CPPUNIT_ASSERT( s.good() );

    77     CPPUNIT_ASSERT( s.str() == "0" );

    78   }

    79   {

    80     ostringstream s;

    81     ptrdiff_t i = 0;

    82     s << i;

    83     CPPUNIT_ASSERT( s.good() );

    84     CPPUNIT_ASSERT( s.str() == "0" );

    85   }

    86 }

    87 

    88 void SstreamTest::input()

    89 {

    90   {

    91     istringstream s( "1\n2\nabcd\nghk lm\nabcd ef" );

    92     int i = 0;

    93     s >> i;

    94     CPPUNIT_ASSERT( s.good() );

    95     CPPUNIT_ASSERT( i == 1 );

    96     double d = 0.0;

    97     s >> d;

    98     CPPUNIT_ASSERT( s.good() );

    99     CPPUNIT_ASSERT( d == 2.0 );

   100     string str;

   101     s >> str;

   102     CPPUNIT_ASSERT( s.good() );

   103     CPPUNIT_ASSERT( str == "abcd" );

   104     char c;

   105     s.get(c); // extract newline, that not extracted by operator >>

   106     CPPUNIT_ASSERT( s.good() );

   107     CPPUNIT_ASSERT( c == '\n' );

   108     getline( s, str );

   109     CPPUNIT_ASSERT( s.good() );

   110     CPPUNIT_ASSERT( str == "ghk lm" );

   111     getline( s, str );

   112     CPPUNIT_ASSERT( s.eof() );

   113     CPPUNIT_ASSERT( str == "abcd ef" );

   114   }

   115   {

   116     istringstream s("0");

   117     size_t i = 1;

   118     s >> i;

   119     CPPUNIT_ASSERT( !s.fail() );

   120     CPPUNIT_ASSERT( s.eof() );

   121     CPPUNIT_ASSERT( i == 0 );

   122   }

   123 }

   124 

   125 void SstreamTest::input_char()

   126 {

   127   char buf[16] = { 0, '1', '2', '3' };

   128   istringstream s( "0" );

   129   s >> buf;

   130 

   131   CPPUNIT_ASSERT( buf[0] == '0' );

   132   CPPUNIT_ASSERT( buf[1] == 0 );

   133   CPPUNIT_ASSERT( buf[2] == '2' );

   134 }

   135 

   136 

   137 void SstreamTest::io()

   138 {

   139   stringstream s;

   140   s << 1 << '\n' << 2.0 << '\n' << "abcd\n" << "ghk lm\n" << "abcd ef";

   141   CPPUNIT_ASSERT( s.good() );

   142 

   143   int i = 0;

   144   s >> i;

   145   CPPUNIT_ASSERT( i == 1 );

   146   CPPUNIT_ASSERT( s.good() );

   147   double d = 0.0;

   148   s >> d;

   149   CPPUNIT_ASSERT( d == 2.0 );

   150   CPPUNIT_ASSERT( s.good() );

   151   string str;

   152   s >> str;

   153   CPPUNIT_ASSERT( str == "abcd" );

   154   CPPUNIT_ASSERT( s.good() );

   155   char c;

   156   s.get(c); // extract newline, that not extracted by operator >>

   157   CPPUNIT_ASSERT( s.good() );

   158   CPPUNIT_ASSERT( c == '\n' );

   159   getline( s, str );

   160   CPPUNIT_ASSERT( s.good() );

   161   CPPUNIT_ASSERT( str == "ghk lm" );

   162   getline( s, str );

   163   CPPUNIT_ASSERT( str == "abcd ef" );

   164   CPPUNIT_ASSERT( s.eof() );

   165 }

   166 

   167 void SstreamTest::err()

   168 {

   169   stringstream s( "9" );

   170 

   171   int i = 0;

   172   s >> i;

   173   CPPUNIT_ASSERT( !s.fail() );

   174   CPPUNIT_ASSERT( i == 9 );

   175   s >> i;

   176   CPPUNIT_ASSERT( s.fail() );

   177   CPPUNIT_ASSERT( s.eof() );

   178   CPPUNIT_ASSERT( i == 9 );

   179 }

   180 

   181 void SstreamTest::err_long()

   182 {

   183   stringstream s( "9" );

   184 

   185   long i = 0;

   186   s >> i;

   187   CPPUNIT_ASSERT( !s.fail() );

   188   CPPUNIT_ASSERT( i == 9 );

   189   s >> i;

   190   CPPUNIT_ASSERT( s.fail() );

   191   CPPUNIT_ASSERT( s.eof() );

   192   CPPUNIT_ASSERT( i == 9 );

   193 }

   194 

   195 void SstreamTest::maxint()

   196 {

   197   stringstream s;

   198 

   199   s << INT_MAX << " " << UINT_MAX << " " << LONG_MAX << " " << ULONG_MAX << " "

   200     << INT_MIN << " " << LONG_MIN;

   201   CPPUNIT_ASSERT( s.good() );

   202 

   203   int i = 0;

   204   unsigned int u = 0;

   205   long l = 0;

   206   unsigned long ul = 0;

   207 

   208   s >> i >> u >> l >> ul;

   209   CPPUNIT_ASSERT( s.good() );

   210   CPPUNIT_ASSERT( i == INT_MAX );

   211   CPPUNIT_ASSERT( u == UINT_MAX );

   212   CPPUNIT_ASSERT( l == LONG_MAX );

   213   CPPUNIT_ASSERT( ul == ULONG_MAX );

   214 

   215   s >> i >> l;

   216   CPPUNIT_ASSERT( !s.fail() );

   217   CPPUNIT_ASSERT( i == INT_MIN );

   218   CPPUNIT_ASSERT( l == LONG_MIN );

   219 }

   220 

   221 void SstreamTest::init_in()

   222 {

   223   istringstream is( "12345" );

   224   int n;

   225 

   226   is >> n;

   227   CPPUNIT_ASSERT( !is.fail() );

   228   CPPUNIT_ASSERT( n == 12345 );

   229 

   230   istringstream dis( "1.2345" );

   231   double d;

   232 

   233   dis >> d;

   234   CPPUNIT_ASSERT( !dis.fail() );

   235   CPPUNIT_ASSERT( are_equals(d, 1.2345) );

   236 

   237   istringstream fis( "1.2345" );

   238   float f;

   239 

   240   fis >> f;

   241   CPPUNIT_ASSERT( !fis.fail() );

   242   CPPUNIT_ASSERT( are_equals(f, 1.2345f) );

   243 }

   244 

   245 void SstreamTest::init_out()

   246 {

   247   ostringstream os( "12345" );

   248   CPPUNIT_ASSERT( os.str() == "12345" );

   249 

   250   os << 67;

   251   CPPUNIT_ASSERT( os.good() );

   252 

   253   // This satisfy to the Standard:

   254   CPPUNIT_ASSERT( os.str() == "67345" );

   255   // But we don't know the reason, why standard state that.

   256 

   257   os.str( "89ab" );

   258   CPPUNIT_ASSERT( os.str() == "89ab" );

   259 

   260   os << 10;

   261   CPPUNIT_ASSERT( os.good() );

   262   CPPUNIT_ASSERT( os.str() == "10ab" );

   263 }

   264 

   265 void SstreamTest::buf()

   266 {

   267   stringstream ss;

   268 

   269   ss << "1234567\n89\n";

   270   char buf[10];

   271   buf[7] = 'x';

   272   ss.get( buf, 10 );

   273   CPPUNIT_ASSERT( !ss.fail() );

   274   CPPUNIT_ASSERT( buf[0] == '1' );

   275   CPPUNIT_ASSERT( buf[1] == '2' );

   276   CPPUNIT_ASSERT( buf[2] == '3' );

   277   CPPUNIT_ASSERT( buf[3] == '4' );

   278   CPPUNIT_ASSERT( buf[4] == '5' );

   279   CPPUNIT_ASSERT( buf[5] == '6' );

   280   CPPUNIT_ASSERT( buf[6] == '7' ); // 27.6.1.3 paragraph 10, paragraph 7

   281   CPPUNIT_ASSERT( buf[7] == 0 ); // 27.6.1.3 paragraph 8

   282   char c;

   283   ss.get(c);

   284   CPPUNIT_ASSERT( !ss.fail() );

   285   CPPUNIT_ASSERT( c == '\n' ); // 27.6.1.3 paragraph 10, paragraph 7

   286   ss.get(c);

   287   CPPUNIT_ASSERT( !ss.fail() );

   288   CPPUNIT_ASSERT( c == '8' );

   289 }

   290 

   291 void SstreamTest::rdbuf()

   292 {

   293   stringstream ss;

   294 

   295   ss << "1234567\n89\n";

   296 

   297   ostringstream os;

   298   ss.get( *os.rdbuf(), '\n' );

   299   CPPUNIT_ASSERT( !ss.fail() );

   300   char c;

   301   ss.get(c);

   302   CPPUNIT_ASSERT( !ss.fail() );

   303   CPPUNIT_ASSERT( c == '\n' ); // 27.6.1.3 paragraph 12

   304   CPPUNIT_ASSERT( os.str() == "1234567" );

   305 }

   306 

   307 void SstreamTest::streambuf_output()

   308 {

   309   {

   310     istringstream in("01234567890123456789");

   311     CPPUNIT_ASSERT( in );

   312 

   313     auto_ptr<full_streambuf> pfull_buf(new full_streambuf(10));

   314     ostream out(pfull_buf.get());

   315     CPPUNIT_ASSERT( out );

   316 

   317     out << in.rdbuf();

   318     CPPUNIT_ASSERT( out );

   319     CPPUNIT_ASSERT( in );

   320     //out is good we can check what has been extracted:

   321     CPPUNIT_ASSERT( pfull_buf->str() == "0123456789" );

   322 

   323     out << in.rdbuf();

   324     CPPUNIT_ASSERT( out.fail() );

   325     CPPUNIT_ASSERT( in );

   326 

   327     ostringstream ostr;

   328     ostr << in.rdbuf();

   329     CPPUNIT_ASSERT( ostr );

   330     CPPUNIT_ASSERT( in );

   331     CPPUNIT_ASSERT( ostr.str() == "0123456789" );

   332   }

   333 

   334 #  if !defined (STLPORT) || defined (_STLP_USE_EXCEPTIONS)

   335   {

   336     //If the output stream buffer throws:

   337     istringstream in("01234567890123456789");

   338     CPPUNIT_ASSERT( in );

   339 

   340     auto_ptr<full_streambuf> pfull_buf(new full_streambuf(10, true));

   341     ostream out(pfull_buf.get());

   342     CPPUNIT_ASSERT( out );

   343 

   344     out << in.rdbuf();

   345     CPPUNIT_ASSERT( out.bad() );

   346     CPPUNIT_ASSERT( in );

   347     //out is bad we have no guaranty on what has been extracted:

   348     //CPPUNIT_ASSERT( pfull_buf->str() == "0123456789" );

   349 

   350     out.clear();

   351     out << in.rdbuf();

   352     CPPUNIT_ASSERT( out.fail() && out.bad() );

   353     CPPUNIT_ASSERT( in );

   354 

   355     ostringstream ostr;

   356     ostr << in.rdbuf();

   357     CPPUNIT_ASSERT( ostr );

   358     CPPUNIT_ASSERT( in );

   359     CPPUNIT_ASSERT( ostr.str() == "01234567890123456789" );

   360   }

   361 #  endif

   362 }

   363 

   364 void SstreamTest::seek()

   365 {

   366   stringstream s( "0123456789" );

   367 

   368   CPPUNIT_ASSERT( s.tellg() == stringstream::pos_type(0) );

   369   s.seekg( 6, ios::beg );

   370   CPPUNIT_ASSERT( s.tellg() == stringstream::pos_type(6) );

   371   s.seekg( -3, ios::cur );

   372   CPPUNIT_ASSERT( s.tellg() == stringstream::pos_type(3) );

   373 

   374   istringstream is( "0123456789" );

   375   CPPUNIT_ASSERT( is.tellg() == stringstream::pos_type(0) );

   376   is.seekg( 6, ios::beg );

   377   CPPUNIT_ASSERT( is.tellg() == stringstream::pos_type(6) );

   378   is.seekg( -3, ios::cur );

   379   CPPUNIT_ASSERT( is.tellg() == stringstream::pos_type(3) );

   380 }

   381 

   382 

   383 template < class T >

   384 string to_string( const T& v )

   385 {

   386   ostringstream oss;

   387   oss << v;

   388   return oss.str();

   389 }

   390 

   391 void SstreamTest::negative()

   392 {

   393   CPPUNIT_CHECK( to_string<int>(-1) == "-1" );

   394   CPPUNIT_CHECK( to_string<long>(-1) == "-1" );

   395 }

   396 

   397 #endif
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