reactos/sdk/lib/3rdparty/stlport/test/unit/sstream_test.cpp
2021-06-11 15:33:08 +03:00

488 lines
11 KiB
C++

#include <string>
#include "math_aux.h"
#if !defined (STLPORT) || !defined (_STLP_USE_NO_IOSTREAMS)
# include <sstream>
# include <memory>
# include "full_streambuf.h"
# include "cppunit/cppunit_proxy.h"
# if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
using namespace std;
# endif
//
// TestCase class
//
class SstreamTest : public CPPUNIT_NS::TestCase
{
CPPUNIT_TEST_SUITE(SstreamTest);
CPPUNIT_TEST(output);
CPPUNIT_TEST(input);
CPPUNIT_TEST(input_char);
CPPUNIT_TEST(io);
CPPUNIT_TEST(err);
CPPUNIT_TEST(err_long);
CPPUNIT_TEST(maxint);
CPPUNIT_TEST(init_in);
CPPUNIT_TEST(init_out);
CPPUNIT_TEST(buf);
CPPUNIT_TEST(rdbuf);
CPPUNIT_TEST(streambuf_output);
CPPUNIT_TEST(seek);
CPPUNIT_TEST(seekp);
CPPUNIT_TEST(seek_gp);
CPPUNIT_TEST(tellp);
CPPUNIT_TEST(negative);
CPPUNIT_TEST_SUITE_END();
protected:
void output();
void input();
void input_char();
void io();
void err();
void err_long();
void maxint();
void init_in();
void init_out();
void buf();
void rdbuf();
void streambuf_output();
void seek();
void seekp();
void seek_gp();
void tellp();
void negative();
};
CPPUNIT_TEST_SUITE_REGISTRATION(SstreamTest);
//
// tests implementation
//
void SstreamTest::output()
{
{
ostringstream s;
s << 1 << '\n' << 2.0 << '\n' << "abcd\n" << "ghk lm\n" << "abcd ef";
CPPUNIT_ASSERT( s.good() );
CPPUNIT_ASSERT( s.str() == "1\n2\nabcd\nghk lm\nabcd ef" );
}
//Following tests are mostly used to reveal problem with the MSVC /Wp64 option
//used to track 64 bits portability issue:
{
ostringstream s;
size_t i = 0;
s << i;
CPPUNIT_ASSERT( s.good() );
CPPUNIT_ASSERT( s.str() == "0" );
}
{
ostringstream s;
ptrdiff_t i = 0;
s << i;
CPPUNIT_ASSERT( s.good() );
CPPUNIT_ASSERT( s.str() == "0" );
}
}
void SstreamTest::input()
{
{
istringstream s( "1\n2\nabcd\nghk lm\nabcd ef" );
int i = 0;
s >> i;
CPPUNIT_ASSERT( s.good() );
CPPUNIT_ASSERT( i == 1 );
double d = 0.0;
s >> d;
CPPUNIT_ASSERT( s.good() );
CPPUNIT_ASSERT( d == 2.0 );
string str;
s >> str;
CPPUNIT_ASSERT( s.good() );
CPPUNIT_ASSERT( str == "abcd" );
char c;
s.get(c); // extract newline, that not extracted by operator >>
CPPUNIT_ASSERT( s.good() );
CPPUNIT_ASSERT( c == '\n' );
getline( s, str );
CPPUNIT_ASSERT( s.good() );
CPPUNIT_ASSERT( str == "ghk lm" );
getline( s, str );
CPPUNIT_ASSERT( s.eof() );
CPPUNIT_ASSERT( str == "abcd ef" );
}
{
istringstream s("0");
size_t i = 1;
s >> i;
CPPUNIT_ASSERT( !s.fail() );
CPPUNIT_ASSERT( s.eof() );
CPPUNIT_ASSERT( i == 0 );
}
}
void SstreamTest::input_char()
{
char buf[16] = { 0, '1', '2', '3' };
istringstream s( "0" );
s >> buf;
CPPUNIT_ASSERT( buf[0] == '0' );
CPPUNIT_ASSERT( buf[1] == 0 );
CPPUNIT_ASSERT( buf[2] == '2' );
}
void SstreamTest::io()
{
stringstream s;
s << 1 << '\n' << 2.0 << '\n' << "abcd\n" << "ghk lm\n" << "abcd ef";
CPPUNIT_ASSERT( s.good() );
int i = 0;
s >> i;
CPPUNIT_ASSERT( i == 1 );
CPPUNIT_ASSERT( s.good() );
double d = 0.0;
s >> d;
CPPUNIT_ASSERT( d == 2.0 );
CPPUNIT_ASSERT( s.good() );
string str;
s >> str;
CPPUNIT_ASSERT( str == "abcd" );
CPPUNIT_ASSERT( s.good() );
char c;
s.get(c); // extract newline, that not extracted by operator >>
CPPUNIT_ASSERT( s.good() );
CPPUNIT_ASSERT( c == '\n' );
getline( s, str );
CPPUNIT_ASSERT( s.good() );
CPPUNIT_ASSERT( str == "ghk lm" );
getline( s, str );
CPPUNIT_ASSERT( str == "abcd ef" );
CPPUNIT_ASSERT( s.eof() );
}
void SstreamTest::err()
{
stringstream s( "9" );
int i = 0;
s >> i;
CPPUNIT_ASSERT( !s.fail() );
CPPUNIT_ASSERT( i == 9 );
s >> i;
CPPUNIT_ASSERT( s.fail() );
CPPUNIT_ASSERT( s.eof() );
CPPUNIT_ASSERT( i == 9 );
}
void SstreamTest::err_long()
{
stringstream s( "9" );
long i = 0;
s >> i;
CPPUNIT_ASSERT( !s.fail() );
CPPUNIT_ASSERT( i == 9 );
s >> i;
CPPUNIT_ASSERT( s.fail() );
CPPUNIT_ASSERT( s.eof() );
CPPUNIT_ASSERT( i == 9 );
}
void SstreamTest::maxint()
{
stringstream s;
s << INT_MAX << " " << UINT_MAX << " " << LONG_MAX << " " << ULONG_MAX << " "
<< INT_MIN << " " << LONG_MIN;
CPPUNIT_ASSERT( s.good() );
int i = 0;
unsigned int u = 0;
long l = 0;
unsigned long ul = 0;
s >> i >> u >> l >> ul;
CPPUNIT_ASSERT( s.good() );
CPPUNIT_ASSERT( i == INT_MAX );
CPPUNIT_ASSERT( u == UINT_MAX );
CPPUNIT_ASSERT( l == LONG_MAX );
CPPUNIT_ASSERT( ul == ULONG_MAX );
s >> i >> l;
CPPUNIT_ASSERT( !s.fail() );
CPPUNIT_ASSERT( i == INT_MIN );
CPPUNIT_ASSERT( l == LONG_MIN );
}
void SstreamTest::init_in()
{
istringstream is( "12345" );
int n;
is >> n;
CPPUNIT_ASSERT( !is.fail() );
CPPUNIT_ASSERT( n == 12345 );
istringstream dis( "1.2345" );
double d;
dis >> d;
CPPUNIT_ASSERT( !dis.fail() );
CPPUNIT_ASSERT( are_equals(d, 1.2345) );
istringstream fis( "1.2345" );
float f;
fis >> f;
CPPUNIT_ASSERT( !fis.fail() );
CPPUNIT_ASSERT( are_equals(f, 1.2345f) );
}
void SstreamTest::init_out()
{
ostringstream os( "12345" );
CPPUNIT_ASSERT( os.str() == "12345" );
os << 67;
CPPUNIT_ASSERT( os.good() );
// This satisfy to the Standard:
// CPPUNIT_ASSERT( os.str() == "67345" );
// But we don't know the reason, why standard state that.
/*
* 27.7.1.1: ... then copies the content of str into the basic_sringbuf
* underlying character sequence and initializes the input and output
* sequences according to which. If which & ios_base::out is true, initializes
* the output sequence with underlying sequence. ...
*
* I can treat this as 'like output was performed', and then I should bump
* put pointer... Looks like more useful then my previous treatment.
*
* - ptr
*/
CPPUNIT_ASSERT( os.str() == "1234567" );
os.str( "89ab" );
CPPUNIT_ASSERT( os.str() == "89ab" );
os << 10;
CPPUNIT_ASSERT( os.good() );
// CPPUNIT_ASSERT( os.str() == "10ab" );
CPPUNIT_ASSERT( os.str() == "89ab10" );
}
void SstreamTest::buf()
{
stringstream ss;
ss << "1234567\n89\n";
char buf[10];
buf[7] = 'x';
ss.get( buf, 10 );
CPPUNIT_ASSERT( !ss.fail() );
CPPUNIT_ASSERT( buf[0] == '1' );
CPPUNIT_ASSERT( buf[1] == '2' );
CPPUNIT_ASSERT( buf[2] == '3' );
CPPUNIT_ASSERT( buf[3] == '4' );
CPPUNIT_ASSERT( buf[4] == '5' );
CPPUNIT_ASSERT( buf[5] == '6' );
CPPUNIT_ASSERT( buf[6] == '7' ); // 27.6.1.3 paragraph 10, paragraph 7
CPPUNIT_ASSERT( buf[7] == 0 ); // 27.6.1.3 paragraph 8
char c;
ss.get(c);
CPPUNIT_ASSERT( !ss.fail() );
CPPUNIT_ASSERT( c == '\n' ); // 27.6.1.3 paragraph 10, paragraph 7
ss.get(c);
CPPUNIT_ASSERT( !ss.fail() );
CPPUNIT_ASSERT( c == '8' );
}
void SstreamTest::rdbuf()
{
stringstream ss;
ss << "1234567\n89\n";
ostringstream os;
ss.get( *os.rdbuf(), '\n' );
CPPUNIT_ASSERT( !ss.fail() );
char c;
ss.get(c);
CPPUNIT_ASSERT( !ss.fail() );
CPPUNIT_ASSERT( c == '\n' ); // 27.6.1.3 paragraph 12
CPPUNIT_ASSERT( os.str() == "1234567" );
}
void SstreamTest::streambuf_output()
{
{
istringstream in("01234567890123456789");
CPPUNIT_ASSERT( in );
full_streambuf full_buf(10);
ostream out(&full_buf);
CPPUNIT_ASSERT( out );
out << in.rdbuf();
CPPUNIT_ASSERT( out );
CPPUNIT_ASSERT( in );
//out is good we can check what has been extracted:
CPPUNIT_ASSERT( full_buf.str() == "0123456789" );
out << in.rdbuf();
CPPUNIT_ASSERT( out.fail() );
CPPUNIT_ASSERT( in );
ostringstream ostr;
ostr << in.rdbuf();
CPPUNIT_ASSERT( ostr );
CPPUNIT_ASSERT( in );
CPPUNIT_ASSERT( ostr.str() == "0123456789" );
}
# if !defined (STLPORT) || defined (_STLP_USE_EXCEPTIONS)
{
//If the output stream buffer throws:
istringstream in("01234567890123456789");
CPPUNIT_ASSERT( in );
full_streambuf full_buf(10, true);
ostream out(&full_buf);
CPPUNIT_ASSERT( out );
out << in.rdbuf();
CPPUNIT_ASSERT( out.bad() );
CPPUNIT_ASSERT( in );
//out is bad we have no guaranty on what has been extracted:
//CPPUNIT_ASSERT( full_buf.str() == "0123456789" );
out.clear();
out << in.rdbuf();
CPPUNIT_ASSERT( out.fail() && out.bad() );
CPPUNIT_ASSERT( in );
ostringstream ostr;
ostr << in.rdbuf();
CPPUNIT_ASSERT( ostr );
CPPUNIT_ASSERT( in );
CPPUNIT_ASSERT( ostr.str() == "01234567890123456789" );
}
# endif
}
void SstreamTest::seek()
{
stringstream s( "0123456789" );
CPPUNIT_ASSERT( s.tellg() == stringstream::pos_type(0) );
s.seekg( 6, ios::beg );
CPPUNIT_ASSERT( s.tellg() == stringstream::pos_type(6) );
s.seekg( -3, ios::cur );
CPPUNIT_ASSERT( s.tellg() == stringstream::pos_type(3) );
istringstream is( "0123456789" );
CPPUNIT_ASSERT( is.tellg() == stringstream::pos_type(0) );
is.seekg( 6, ios::beg );
CPPUNIT_ASSERT( is.tellg() == stringstream::pos_type(6) );
is.seekg( -3, ios::cur );
CPPUNIT_ASSERT( is.tellg() == stringstream::pos_type(3) );
}
void SstreamTest::seekp()
{
ostringstream s;
s << "1234567";
CPPUNIT_CHECK( s.tellp() == stringstream::pos_type(7) );
CPPUNIT_CHECK( s.str() == "1234567" );
s.seekp( 0 );
s << "X";
CPPUNIT_CHECK( s.str() == "X234567" );
s.seekp( 0, ios::beg );
s << "Y";
CPPUNIT_CHECK( s.str() == "Y234567" );
}
void SstreamTest::seek_gp()
{
stringstream ss( "1" );
/* ISO/IEC 14882 2003 (and 1998 too) assume change as get as put positions
with seekg and seekp (27.6.1.3, par 38; 27.6.2.4 par 2),
but this contradict to common practice and proposed draft N2588
(27.6.1.3, par 41; 27.6.2.5, par 4)
Now STLport implement (i.e. change behaviour ) the draft's point of view.
*/
ss.seekg( 0, ios::beg );
ss.seekp( 0, ios::end );
ss << "2";
string str;
ss >> str;
/* CPPUNIT_CHECK( str == "2" ); --- according ISO/IEC 14882 2003 */
CPPUNIT_CHECK( str == "12" );
}
void SstreamTest::tellp()
{
{
ostringstream o( "1" );
o << "23456";
CPPUNIT_CHECK( o.rdbuf()->pubseekoff( 0, ios_base::cur, ios_base::out ) == stringstream::pos_type(6) );
CPPUNIT_CHECK( o.tellp() == stringstream::pos_type(6) );
}
{
ostringstream o;
o << "123456";
CPPUNIT_CHECK( o.rdbuf()->pubseekoff( 0, ios_base::cur, ios_base::out ) == stringstream::pos_type(6) );
CPPUNIT_CHECK( o.tellp() == stringstream::pos_type(6) );
}
{
ostringstream o( "1" );
o << "23456789";
CPPUNIT_CHECK( o.rdbuf()->pubseekoff( 0, ios_base::cur, ios_base::out ) == stringstream::pos_type(9) );
CPPUNIT_CHECK( o.tellp() == stringstream::pos_type(9) );
}
}
template < class T >
string to_string( const T& v )
{
ostringstream oss;
oss << v;
return oss.str();
}
void SstreamTest::negative()
{
CPPUNIT_CHECK( to_string<int>(-1) == "-1" );
CPPUNIT_CHECK( to_string<long>(-1) == "-1" );
}
#endif