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)
13using namespace std;
14#  endif
15
16//
17// TestCase class
18//
19class 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(seekp);
36  CPPUNIT_TEST(seek_gp);
37  CPPUNIT_TEST(tellp);
38  CPPUNIT_TEST(negative);
39  CPPUNIT_TEST_SUITE_END();
40
41  protected:
42    void output();
43    void input();
44    void input_char();
45    void io();
46    void err();
47    void err_long();
48    void maxint();
49    void init_in();
50    void init_out();
51    void buf();
52    void rdbuf();
53    void streambuf_output();
54    void seek();
55    void seekp();
56    void seek_gp();
57    void tellp();
58    void negative();
59};
60
61CPPUNIT_TEST_SUITE_REGISTRATION(SstreamTest);
62
63//
64// tests implementation
65//
66void SstreamTest::output()
67{
68  {
69    ostringstream s;
70
71    s << 1 << '\n' << 2.0 << '\n' << "abcd\n" << "ghk lm\n" << "abcd ef";
72    CPPUNIT_ASSERT( s.good() );
73    CPPUNIT_ASSERT( s.str() == "1\n2\nabcd\nghk lm\nabcd ef" );
74  }
75
76  //Following tests are mostly used to reveal problem with the MSVC /Wp64 option
77  //used to track 64 bits portability issue:
78  {
79    ostringstream s;
80    size_t i = 0;
81    s << i;
82    CPPUNIT_ASSERT( s.good() );
83    CPPUNIT_ASSERT( s.str() == "0" );
84  }
85  {
86    ostringstream s;
87    ptrdiff_t i = 0;
88    s << i;
89    CPPUNIT_ASSERT( s.good() );
90    CPPUNIT_ASSERT( s.str() == "0" );
91  }
92}
93
94void SstreamTest::input()
95{
96  {
97    istringstream s( "1\n2\nabcd\nghk lm\nabcd ef" );
98    int i = 0;
99    s >> i;
100    CPPUNIT_ASSERT( s.good() );
101    CPPUNIT_ASSERT( i == 1 );
102    double d = 0.0;
103    s >> d;
104    CPPUNIT_ASSERT( s.good() );
105    CPPUNIT_ASSERT( d == 2.0 );
106    string str;
107    s >> str;
108    CPPUNIT_ASSERT( s.good() );
109    CPPUNIT_ASSERT( str == "abcd" );
110    char c;
111    s.get(c); // extract newline, that not extracted by operator >>
112    CPPUNIT_ASSERT( s.good() );
113    CPPUNIT_ASSERT( c == '\n' );
114    getline( s, str );
115    CPPUNIT_ASSERT( s.good() );
116    CPPUNIT_ASSERT( str == "ghk lm" );
117    getline( s, str );
118    CPPUNIT_ASSERT( s.eof() );
119    CPPUNIT_ASSERT( str == "abcd ef" );
120  }
121  {
122    istringstream s("0");
123    size_t i = 1;
124    s >> i;
125    CPPUNIT_ASSERT( !s.fail() );
126    CPPUNIT_ASSERT( s.eof() );
127    CPPUNIT_ASSERT( i == 0 );
128  }
129}
130
131void SstreamTest::input_char()
132{
133  char buf[16] = { 0, '1', '2', '3' };
134  istringstream s( "0" );
135  s >> buf;
136
137  CPPUNIT_ASSERT( buf[0] == '0' );
138  CPPUNIT_ASSERT( buf[1] == 0 );
139  CPPUNIT_ASSERT( buf[2] == '2' );
140}
141
142
143void SstreamTest::io()
144{
145  stringstream s;
146  s << 1 << '\n' << 2.0 << '\n' << "abcd\n" << "ghk lm\n" << "abcd ef";
147  CPPUNIT_ASSERT( s.good() );
148
149  int i = 0;
150  s >> i;
151  CPPUNIT_ASSERT( i == 1 );
152  CPPUNIT_ASSERT( s.good() );
153  double d = 0.0;
154  s >> d;
155  CPPUNIT_ASSERT( d == 2.0 );
156  CPPUNIT_ASSERT( s.good() );
157  string str;
158  s >> str;
159  CPPUNIT_ASSERT( str == "abcd" );
160  CPPUNIT_ASSERT( s.good() );
161  char c;
162  s.get(c); // extract newline, that not extracted by operator >>
163  CPPUNIT_ASSERT( s.good() );
164  CPPUNIT_ASSERT( c == '\n' );
165  getline( s, str );
166  CPPUNIT_ASSERT( s.good() );
167  CPPUNIT_ASSERT( str == "ghk lm" );
168  getline( s, str );
169  CPPUNIT_ASSERT( str == "abcd ef" );
170  CPPUNIT_ASSERT( s.eof() );
171}
172
173void SstreamTest::err()
174{
175  stringstream s( "9" );
176
177  int i = 0;
178  s >> i;
179  CPPUNIT_ASSERT( !s.fail() );
180  CPPUNIT_ASSERT( i == 9 );
181  s >> i;
182  CPPUNIT_ASSERT( s.fail() );
183  CPPUNIT_ASSERT( s.eof() );
184  CPPUNIT_ASSERT( i == 9 );
185}
186
187void SstreamTest::err_long()
188{
189  stringstream s( "9" );
190
191  long i = 0;
192  s >> i;
193  CPPUNIT_ASSERT( !s.fail() );
194  CPPUNIT_ASSERT( i == 9 );
195  s >> i;
196  CPPUNIT_ASSERT( s.fail() );
197  CPPUNIT_ASSERT( s.eof() );
198  CPPUNIT_ASSERT( i == 9 );
199}
200
201void SstreamTest::maxint()
202{
203  stringstream s;
204
205  s << INT_MAX << " " << UINT_MAX << " " << LONG_MAX << " " << ULONG_MAX << " "
206    << INT_MIN << " " << LONG_MIN;
207  CPPUNIT_ASSERT( s.good() );
208
209  int i = 0;
210  unsigned int u = 0;
211  long l = 0;
212  unsigned long ul = 0;
213
214  s >> i >> u >> l >> ul;
215  CPPUNIT_ASSERT( s.good() );
216  CPPUNIT_ASSERT( i == INT_MAX );
217  CPPUNIT_ASSERT( u == UINT_MAX );
218  CPPUNIT_ASSERT( l == LONG_MAX );
219  CPPUNIT_ASSERT( ul == ULONG_MAX );
220
221  s >> i >> l;
222  CPPUNIT_ASSERT( !s.fail() );
223  CPPUNIT_ASSERT( i == INT_MIN );
224  CPPUNIT_ASSERT( l == LONG_MIN );
225}
226
227void SstreamTest::init_in()
228{
229  istringstream is( "12345" );
230  int n;
231
232  is >> n;
233  CPPUNIT_ASSERT( !is.fail() );
234  CPPUNIT_ASSERT( n == 12345 );
235
236  istringstream dis( "1.2345" );
237  double d;
238
239  dis >> d;
240  CPPUNIT_ASSERT( !dis.fail() );
241  CPPUNIT_ASSERT( are_equals(d, 1.2345) );
242
243  istringstream fis( "1.2345" );
244  float f;
245
246  fis >> f;
247  CPPUNIT_ASSERT( !fis.fail() );
248  CPPUNIT_ASSERT( are_equals(f, 1.2345f) );
249}
250
251void SstreamTest::init_out()
252{
253  ostringstream os( "12345" );
254  CPPUNIT_ASSERT( os.str() == "12345" );
255
256  os << 67;
257  CPPUNIT_ASSERT( os.good() );
258
259  // This satisfy to the Standard:
260  // CPPUNIT_ASSERT( os.str() == "67345" );
261  // But we don't know the reason, why standard state that.
262
263  /*
264   * 27.7.1.1: ... then copies the content of str into the basic_sringbuf
265   * underlying character sequence and initializes the input and output
266   * sequences according to which. If which & ios_base::out is true, initializes
267   * the output sequence with underlying sequence. ...
268   *
269   * I can treat this as 'like output was performed', and then I should bump
270   * put pointer... Looks like more useful then my previous treatment.
271   *
272   *          - ptr
273   */
274
275  CPPUNIT_ASSERT( os.str() == "1234567" );
276
277
278  os.str( "89ab" );
279  CPPUNIT_ASSERT( os.str() == "89ab" );
280
281  os << 10;
282  CPPUNIT_ASSERT( os.good() );
283  // CPPUNIT_ASSERT( os.str() == "10ab" );
284  CPPUNIT_ASSERT( os.str() == "89ab10" );
285}
286
287void SstreamTest::buf()
288{
289  stringstream ss;
290
291  ss << "1234567\n89\n";
292  char buf[10];
293  buf[7] = 'x';
294  ss.get( buf, 10 );
295  CPPUNIT_ASSERT( !ss.fail() );
296  CPPUNIT_ASSERT( buf[0] == '1' );
297  CPPUNIT_ASSERT( buf[1] == '2' );
298  CPPUNIT_ASSERT( buf[2] == '3' );
299  CPPUNIT_ASSERT( buf[3] == '4' );
300  CPPUNIT_ASSERT( buf[4] == '5' );
301  CPPUNIT_ASSERT( buf[5] == '6' );
302  CPPUNIT_ASSERT( buf[6] == '7' ); // 27.6.1.3 paragraph 10, paragraph 7
303  CPPUNIT_ASSERT( buf[7] == 0 ); // 27.6.1.3 paragraph 8
304  char c;
305  ss.get(c);
306  CPPUNIT_ASSERT( !ss.fail() );
307  CPPUNIT_ASSERT( c == '\n' ); // 27.6.1.3 paragraph 10, paragraph 7
308  ss.get(c);
309  CPPUNIT_ASSERT( !ss.fail() );
310  CPPUNIT_ASSERT( c == '8' );
311}
312
313void SstreamTest::rdbuf()
314{
315  stringstream ss;
316
317  ss << "1234567\n89\n";
318
319  ostringstream os;
320  ss.get( *os.rdbuf(), '\n' );
321  CPPUNIT_ASSERT( !ss.fail() );
322  char c;
323  ss.get(c);
324  CPPUNIT_ASSERT( !ss.fail() );
325  CPPUNIT_ASSERT( c == '\n' ); // 27.6.1.3 paragraph 12
326  CPPUNIT_ASSERT( os.str() == "1234567" );
327}
328
329void SstreamTest::streambuf_output()
330{
331  {
332    istringstream in("01234567890123456789");
333    CPPUNIT_ASSERT( in );
334
335    full_streambuf full_buf(10);
336    ostream out(&full_buf);
337    CPPUNIT_ASSERT( out );
338
339    out << in.rdbuf();
340    CPPUNIT_ASSERT( out );
341    CPPUNIT_ASSERT( in );
342    //out is good we can check what has been extracted:
343    CPPUNIT_ASSERT( full_buf.str() == "0123456789" );
344
345    out << in.rdbuf();
346    CPPUNIT_ASSERT( out.fail() );
347    CPPUNIT_ASSERT( in );
348
349    ostringstream ostr;
350    ostr << in.rdbuf();
351    CPPUNIT_ASSERT( ostr );
352    CPPUNIT_ASSERT( in );
353    CPPUNIT_ASSERT( ostr.str() == "0123456789" );
354  }
355
356#  if !defined (STLPORT) || defined (_STLP_USE_EXCEPTIONS)
357  {
358    //If the output stream buffer throws:
359    istringstream in("01234567890123456789");
360    CPPUNIT_ASSERT( in );
361
362    full_streambuf full_buf(10, true);
363    ostream out(&full_buf);
364    CPPUNIT_ASSERT( out );
365
366    out << in.rdbuf();
367    CPPUNIT_ASSERT( out.bad() );
368    CPPUNIT_ASSERT( in );
369    //out is bad we have no guaranty on what has been extracted:
370    //CPPUNIT_ASSERT( full_buf.str() == "0123456789" );
371
372    out.clear();
373    out << in.rdbuf();
374    CPPUNIT_ASSERT( out.fail() && out.bad() );
375    CPPUNIT_ASSERT( in );
376
377    ostringstream ostr;
378    ostr << in.rdbuf();
379    CPPUNIT_ASSERT( ostr );
380    CPPUNIT_ASSERT( in );
381    CPPUNIT_ASSERT( ostr.str() == "01234567890123456789" );
382  }
383#  endif
384}
385
386void SstreamTest::seek()
387{
388  stringstream s( "0123456789" );
389
390  CPPUNIT_ASSERT( s.tellg() == stringstream::pos_type(0) );
391  s.seekg( 6, ios::beg );
392  CPPUNIT_ASSERT( s.tellg() == stringstream::pos_type(6) );
393  s.seekg( -3, ios::cur );
394  CPPUNIT_ASSERT( s.tellg() == stringstream::pos_type(3) );
395
396  istringstream is( "0123456789" );
397  CPPUNIT_ASSERT( is.tellg() == stringstream::pos_type(0) );
398  is.seekg( 6, ios::beg );
399  CPPUNIT_ASSERT( is.tellg() == stringstream::pos_type(6) );
400  is.seekg( -3, ios::cur );
401  CPPUNIT_ASSERT( is.tellg() == stringstream::pos_type(3) );
402}
403
404void SstreamTest::seekp()
405{
406  ostringstream s;
407
408  s << "1234567";
409  CPPUNIT_CHECK( s.tellp() == stringstream::pos_type(7) );
410  CPPUNIT_CHECK( s.str() == "1234567" );
411  s.seekp( 0 );
412  s << "X";
413  CPPUNIT_CHECK( s.str() == "X234567" );
414  s.seekp( 0, ios::beg );
415  s << "Y";
416  CPPUNIT_CHECK( s.str() == "Y234567" );
417}
418
419void SstreamTest::seek_gp()
420{
421  stringstream ss( "1" );
422
423  /* ISO/IEC 14882 2003 (and 1998 too) assume change as get as put positions
424     with seekg and seekp (27.6.1.3, par 38; 27.6.2.4 par 2),
425     but this contradict to common practice and proposed draft N2588
426     (27.6.1.3, par 41; 27.6.2.5, par 4)
427
428     Now STLport implement (i.e. change behaviour ) the draft's point of view.
429   */
430
431  ss.seekg( 0, ios::beg );
432  ss.seekp( 0, ios::end );
433
434  ss << "2";
435
436  string str;
437
438  ss >> str;
439
440  /*  CPPUNIT_CHECK( str == "2" ); --- according ISO/IEC 14882 2003 */
441  CPPUNIT_CHECK( str == "12" );
442}
443
444void SstreamTest::tellp()
445{
446  {
447    ostringstream o( "1" );
448
449    o << "23456";
450
451    CPPUNIT_CHECK( o.rdbuf()->pubseekoff( 0, ios_base::cur, ios_base::out ) == stringstream::pos_type(6) );
452    CPPUNIT_CHECK( o.tellp() == stringstream::pos_type(6) );
453  }
454  {
455    ostringstream o;
456
457    o << "123456";
458
459    CPPUNIT_CHECK( o.rdbuf()->pubseekoff( 0, ios_base::cur, ios_base::out ) == stringstream::pos_type(6) );
460    CPPUNIT_CHECK( o.tellp() == stringstream::pos_type(6) );
461  }
462  {
463    ostringstream o( "1" );
464
465    o << "23456789";
466
467    CPPUNIT_CHECK( o.rdbuf()->pubseekoff( 0, ios_base::cur, ios_base::out ) == stringstream::pos_type(9) );
468    CPPUNIT_CHECK( o.tellp() == stringstream::pos_type(9) );
469  }
470}
471
472
473template < class T >
474string to_string( const T& v )
475{
476  ostringstream oss;
477  oss << v;
478  return oss.str();
479}
480
481void SstreamTest::negative()
482{
483  CPPUNIT_CHECK( to_string<int>(-1) == "-1" );
484  CPPUNIT_CHECK( to_string<long>(-1) == "-1" );
485}
486
487#endif
488