genericopenlibs/cppstdlib/stl/test/unit/sstream_test.cpp
changeset 31 ce057bb09d0b
child 34 5fae379060a7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/cppstdlib/stl/test/unit/sstream_test.cpp	Fri Jun 04 16:20:51 2010 +0100
@@ -0,0 +1,413 @@
+/*
+* 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: 
+*
+*/
+#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(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 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.
+
+  os.str( "89ab" );
+  CPPUNIT_ASSERT( os.str() == "89ab" );
+
+  os << 10;
+  CPPUNIT_ASSERT( os.good() );
+  CPPUNIT_ASSERT( os.str() == "10ab" );
+}
+
+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 );
+
+    auto_ptr<full_streambuf> pfull_buf(new full_streambuf(10));
+    ostream out(pfull_buf.get());
+    CPPUNIT_ASSERT( out );
+
+    out << in.rdbuf();
+    CPPUNIT_ASSERT( out );
+    CPPUNIT_ASSERT( in );
+    //out is good we can check what has been extracted:
+    CPPUNIT_ASSERT( pfull_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 );
+
+    auto_ptr<full_streambuf> pfull_buf(new full_streambuf(10, true));
+    ostream out(pfull_buf.get());
+    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( pfull_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) );
+}
+
+
+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