void FileTestCase::DoRoundTripTest(const wxMBConv& conv)
{
TestFile tf;
const wxString data = "Hello\0UTF";
{
wxFile fout(tf.GetName(), wxFile::write);
CPPUNIT_ASSERT( fout.IsOpened() );
CPPUNIT_ASSERT( fout.Write(data, conv) );
}
{
wxFile fin(tf.GetName(), wxFile::read);
CPPUNIT_ASSERT( fin.IsOpened() );
const ssize_t len = fin.Length();
wxCharBuffer buf(len);
CPPUNIT_ASSERT_EQUAL( len, fin.Read(buf.data(), len) );
wxWCharBuffer wbuf(conv.cMB2WC(buf));
#if wxUSE_UNICODE
CPPUNIT_ASSERT_EQUAL( data, wbuf );
#else // !wxUSE_UNICODE
CPPUNIT_ASSERT
(
memcmp(wbuf, L"Hello\0UTF", data.length()*sizeof(wchar_t)) == 0
);
#endif // wxUSE_UNICODE/!wxUSE_UNICODE
}
}
// test that the conversion between str and wcs (subject to flags) succeeds
//
// the first argument is the index in the test array and is used solely for
// diagnostics
void Test(size_t n, wxMBConv& conv) const
{
if ( str )
{
wxWCharBuffer wbuf = conv.cMB2WC(str);
if ( wcs )
{
CPPUNIT_ASSERT_MESSAGE
(
Message(n, "MB2WC failed"),
wbuf.data()
);
CPPUNIT_ASSERT_MESSAGE
(
Message(n, "MB2WC", wbuf, wcs),
wxStrcmp(wbuf, wcs) == 0
);
}
else // conversion is supposed to fail
{
CPPUNIT_ASSERT_MESSAGE
(
Message(n, "MB2WC succeeded"),
!wbuf.data()
);
}
}
if ( wcs && !(flags & ONLY_MB2WC) )
{
wxCharBuffer buf = conv.cWC2MB(wcs);
if ( str )
{
CPPUNIT_ASSERT_MESSAGE
(
Message(n, "WC2MB failed"),
buf.data()
);
CPPUNIT_ASSERT_MESSAGE
(
Message(n, "WC2MB", buf, str),
strcmp(buf, str) == 0
);
}
else
{
CPPUNIT_ASSERT_MESSAGE
(
Message(n, "WC2MB succeeded"),
!buf.data()
);
}
}
}
wxString CTextFile::GetNextLine(const wxMBConv& conv)
{
wxCHECK_MSG(m_file.IsOpened(), wxEmptyString, wxT("Trying to read from closed file."));
wxCHECK_MSG(!m_file.Eof(), wxEmptyString, wxT("Trying to read past EOF"));
wxCHECK_MSG((m_mode == read), wxEmptyString, wxT("Trying to read from non-readable file."));
wxString line;
char buffer[TXTBUF_SIZE];
// Loop until EOF (fgets will then return NULL) or a newline is read.
while (fgets(buffer, TXTBUF_SIZE, m_file.fp())) {
// NB: The majority of the time spent by this function is
// spent converting the multibyte string to wide-char.
line += conv.cMB2WC(buffer);
// Remove any newlines, carriage returns, etc.
if (line.Length() && (line.Last() == wxT('\n'))) {
if ((line.Length() > 1)) {
if (line[line.Length() - 2] == wxT('\r')) {
// Carriage return + newline
line.RemoveLast(2);
} else {
// Only a newline.
line.RemoveLast(1);
}
} else {
// Empty line
line.Clear();
}
// We've read an entire line.
break;
}
}
return line;
}
