CPPUNIT_ASSERT( !dt.ParseFormat("foo", wxT("%c")) );
CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), wxT("%c")) );
CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );
CPPUNIT_ASSERT( !dt.ParseFormat("foo", wxT("%c")) );
CPPUNIT_ASSERT( !dt.ParseFormat(wxT("foo"), wxT("%c")) );
CPPUNIT_ASSERT( !dt.ParseFormat(s, "%c") );