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Additional tests for wxVsnprintf, originally to test the copy from the scratch,

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but actually shows up problems elsewhere.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@43217 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Michael Wetherell 2006-11-09 01:25:23 +00:00
parent 5d6f17a5b9
commit b95d098489
1 changed files with 81 additions and 3 deletions
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84
tests/strings/vsnprintf.cpp
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@ -87,9 +87,12 @@ private:
CPPUNIT_TEST( S );
CPPUNIT_TEST( Asterisk );
CPPUNIT_TEST( Percent );
#ifdef wxLongLong_t
CPPUNIT_TEST( LongLong );
#endif
CPPUNIT_TEST( BigToSmallBuffer );
CPPUNIT_TEST( Scratch );
CPPUNIT_TEST_SUITE_END();
void D();
@ -103,10 +106,13 @@ private:
void S();
void Asterisk();
void Percent();
#ifdef wxLongLong_t
void LongLong();
#endif
void Unicode();
void BigToSmallBuffer();
void Scratch();
void Misc(wxChar *buffer, int size);
DECLARE_NO_COPY_CLASS(VsnprintfTestCase)
@ -297,13 +303,15 @@ void VsnprintfTestCase::Percent()
// Compare(wxT("%"), wxT("%%%"));
}
#ifdef wxLongLong_t
void VsnprintfTestCase::LongLong()
{
CMP3("123456789", "%lld", (long long int)123456789);
CMP3("-123456789", "%lld", (long long int)-123456789);
CMP3("123456789", "%lld", (wxLongLong_t)123456789);
CMP3("-123456789", "%lld", (wxLongLong_t)-123456789);
CMP3("123456789", "%llu", (unsigned long long int)123456789);
CMP3("123456789", "%llu", (wxULongLong_t)123456789);
}
#endif
void VsnprintfTestCase::Misc(wxChar *buffer, int size)
{
@ -351,3 +359,73 @@ void VsnprintfTestCase::BigToSmallBuffer()
Misc(buf3, 4);
Misc(&buf4, 1);
}
static void DoScratch(
int expectedLen,
const wxString& expectedString,
size_t max,
const wxChar *format, ...)
{
const size_t BUFSIZE = 16;
wxChar buf[BUFSIZE + 1];
size_t i;
static int count = 0;
wxASSERT(max <= BUFSIZE);
for (i = 0; i < BUFSIZE; i++)
buf[i] = '*';
buf[BUFSIZE] = 0;
va_list ap;
va_start(ap, format);
int n = wxVsnprintf(buf, max, format, ap);
va_end(ap);
// Prepare messages so that it is possible to see from the error which
// test was running.
wxString errStr, overflowStr;
errStr << _T("No.: ") << ++count << _T(", expected: ") << expectedLen
<< _T(" '") << expectedString << _T("', result: ");
overflowStr << errStr << _T("buffer overflow");
errStr << n << _T(" '") << buf << _T("'");
// turn them into std::strings
std::string errMsg(errStr.mb_str());
std::string overflowMsg(overflowStr.mb_str());
CPPUNIT_ASSERT_MESSAGE(errMsg,
(expectedLen == -1 && size_t(n) >= max) || expectedLen == n);
CPPUNIT_ASSERT_MESSAGE(errMsg, expectedString == buf);
for (i = max; i < BUFSIZE; i++)
CPPUNIT_ASSERT_MESSAGE(overflowMsg, buf[i] == '*');
}
// Originally intended to test the final copy from the scratch, hence the
// name, but turns up problems elsewhere too.
//
void VsnprintfTestCase::Scratch()
{
// expectedLen, expectedString, max, format, ...
DoScratch(5, wxT("-1234"), 8, wxT("%d"), -1234);
DoScratch(7, wxT("1234567"), 8, wxT("%d"), 1234567);
DoScratch(-1, wxT("1234567"), 8, wxT("%d"), 12345678);
DoScratch(-1, wxT("-123456"), 8, wxT("%d"), -1234567890);
DoScratch(6, wxT("123456"), 8, wxT("123456"));
DoScratch(7, wxT("1234567"), 8, wxT("1234567"));
DoScratch(-1, wxT("1234567"), 8, wxT("12345678"));
DoScratch(6, wxT("123450"), 8, wxT("12345%d"), 0);
DoScratch(7, wxT("1234560"), 8, wxT("123456%d"), 0);
DoScratch(-1, wxT("1234567"), 8, wxT("1234567%d"), 0);
DoScratch(-1, wxT("1234567"), 8, wxT("12345678%d"), 0);
DoScratch(6, wxT("12%45%"), 8, wxT("12%%45%%"));
DoScratch(7, wxT("12%45%7"), 8, wxT("12%%45%%7"));
DoScratch(-1, wxT("12%45%7"), 8, wxT("12%%45%%78"));
}