89d1ec631b
These tests were also broken by transition to CATCH and didn't run any longer. Fix this by replacing CppUnit test suite objects with CATCH test cases and using a simple helper CheckRE() function instead of creating complicated test objects hierarchies.
349 lines
8.8 KiB
C++
349 lines
8.8 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: tests/regex/regex.cpp
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// Purpose: Test the built-in regex lib and wxRegEx
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// Author: Mike Wetherell
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// Copyright: (c) 2004 Mike Wetherell
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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//
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// Notes:
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//
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// To run just one section, say wx_1, do this:
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// test regex.wx_1
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//
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// To run all the regex tests:
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// test regex
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//
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// Some tests must be skipped since they use features which we do not make
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// available through wxRegEx. To see the list of tests that have been skipped
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// turn on verbose logging, e.g.:
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// test --verbose regex
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//
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// The tests here are for the builtin library, tests for wxRegEx in general
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// should go in wxregex.cpp
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//
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// The tests are generated from Henry Spencer's reg.test, additional test
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// can be added in wxreg.test. These test files are then turned into a C++
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// include file 'regex.inc' (included below) using a script 'regex.pl'.
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//
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// For compilers that support precompilation, includes "wx/wx.h".
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#include "testprec.h"
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#if wxUSE_REGEX
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// for all others, include the necessary headers
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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// many of the tests are specific to the builtin regex lib, so only attempts
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// to do them when using the builtin regex lib.
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//
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#ifdef wxHAS_REGEX_ADVANCED
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#include "wx/regex.h"
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#include <string>
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#include <vector>
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using std::string;
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using std::vector;
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///////////////////////////////////////////////////////////////////////////////
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// The test case - an instance represents a single test
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class RegExTestCase
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{
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public:
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RegExTestCase(
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const char *mode,
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const char *id,
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const char *flags,
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const char *pattern,
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const char *data,
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const vector<const char *>& expected);
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private:
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void runTest();
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// workers
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wxString Conv(const char *str);
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bool parseFlags(const wxString& flags);
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void doTest(int flavor);
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static wxString quote(const wxString& arg);
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// mode, id, flags, pattern, test data, expected results...
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int m_mode;
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wxString m_id;
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wxString m_flags;
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wxString m_pattern;
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wxString m_data;
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wxArrayString m_expected;
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// the flag decoded
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int m_compileFlags;
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int m_matchFlags;
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bool m_basic;
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bool m_extended;
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bool m_advanced;
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};
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// constructor - throws Exception on failure
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//
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RegExTestCase::RegExTestCase(
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const char *mode,
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const char *id,
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const char *flags,
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const char *pattern,
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const char *data,
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const vector<const char *>& expected)
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:
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m_mode(mode[0]),
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m_id(Conv(id)),
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m_flags(Conv(flags)),
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m_pattern(Conv(pattern)),
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m_data(Conv(data)),
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m_compileFlags(0),
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m_matchFlags(0),
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m_basic(false),
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m_extended(false),
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m_advanced(false)
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{
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vector<const char *>::const_iterator it;
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for (it = expected.begin(); it != expected.end(); ++it) {
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m_expected.push_back(Conv(*it));
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}
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runTest();
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}
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int wxWcscmp(const wchar_t* s1, const wchar_t* s2)
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{
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size_t nLen1 = wxWcslen(s1);
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size_t nLen2 = wxWcslen(s2);
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if (nLen1 != nLen2)
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return nLen1 - nLen2;
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return memcmp(s1, s2, nLen1*sizeof(wchar_t));
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}
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// convert a string from UTF8 to the internal encoding
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//
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wxString RegExTestCase::Conv(const char *str)
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{
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const wxWCharBuffer wstr = wxConvUTF8.cMB2WC(str);
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const wxWC2WXbuf buf = wxConvCurrent->cWC2WX(wstr);
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if (!buf || wxWcscmp(wxConvCurrent->cWX2WC(buf), wstr) != 0)
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{
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FAIL( "Converting string \"" << str << "\" failed" );
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}
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return buf;
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}
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// Parse flags
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//
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bool RegExTestCase::parseFlags(const wxString& flags)
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{
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for ( wxString::const_iterator p = flags.begin(); p != flags.end(); ++p )
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{
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switch ( (*p).GetValue() ) {
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// noop
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case '-': break;
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// we don't fully support these flags, but they don't stop us
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// checking for success of failure of the match, so treat as noop
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case 'A': case 'B': case 'E': case 'H':
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case 'I': case 'L': case 'M': case 'N':
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case 'P': case 'Q': case 'R': case 'S':
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case 'T': case 'U': case '%':
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break;
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// match options
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case '^': m_matchFlags |= wxRE_NOTBOL; break;
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case '$': m_matchFlags |= wxRE_NOTEOL; break;
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#if wxUSE_UNICODE
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case '*': break;
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#endif
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// compile options
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case '&': m_advanced = m_basic = true; break;
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case 'b': m_basic = true; break;
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case 'e': m_extended = true; break;
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case 'i': m_compileFlags |= wxRE_ICASE; break;
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case 'o': m_compileFlags |= wxRE_NOSUB; break;
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case 'n': m_compileFlags |= wxRE_NEWLINE; break;
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case 't': if (strchr("ep", m_mode)) break; wxFALLTHROUGH;
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// anything else we must skip the test
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default:
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return false;
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}
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}
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return true;
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}
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// Try test for all flavours of expression specified
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//
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void RegExTestCase::runTest()
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{
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// the flags need further parsing...
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if (!parseFlags(m_flags)) {
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// we just have to skip the unsupported flags now
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return;
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}
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// Provide more information about the test case if it fails.
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wxString str;
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wxArrayString::const_iterator it;
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str << (wxChar)m_mode << wxT(" ") << m_id << wxT(" ") << m_flags << wxT(" ")
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<< quote(m_pattern) << wxT(" ") << quote(m_data);
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for (it = m_expected.begin(); it != m_expected.end(); ++it)
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str << wxT(" ") << quote(*it);
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if (str.length() > 77)
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str = str.substr(0, 74) + wxT("...");
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INFO( str );
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if (m_basic)
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doTest(wxRE_BASIC);
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if (m_extended)
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doTest(wxRE_EXTENDED);
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#ifdef wxHAS_REGEX_ADVANCED
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if (m_advanced || (!m_basic && !m_extended))
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doTest(wxRE_ADVANCED);
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#endif
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}
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// Try the test for a single flavour of expression
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//
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void RegExTestCase::doTest(int flavor)
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{
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wxRegEx re(m_pattern, m_compileFlags | flavor);
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// 'e' - test that the pattern fails to compile
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if (m_mode == 'e') {
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CHECK( !re.IsValid() );
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} else {
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CHECK( re.IsValid() );
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}
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if (!re.IsValid())
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return;
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bool matches = re.Matches(m_data, m_matchFlags);
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// 'f' or 'p' - test that the pattern does not match
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if (m_mode == 'f' || m_mode == 'p') {
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CHECK( !matches );
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} else {
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// otherwise 'm' or 'i' - test the pattern does match
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CHECK( matches );
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}
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if (!matches)
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return;
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if (m_compileFlags & wxRE_NOSUB)
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return;
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// check wxRegEx has correctly counted the number of subexpressions
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CHECK( m_expected.size() == re.GetMatchCount() );
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for (size_t i = 0; i < m_expected.size(); i++) {
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wxString result;
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size_t start, len;
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INFO( "Match " << i );
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CHECK( re.GetMatch(&start, &len, i) );
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// m - check the match returns the strings given
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if (m_mode == 'm')
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{
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if (start < INT_MAX)
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result = m_data.substr(start, len);
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else
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result = wxT("");
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}
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// i - check the match returns the offsets given
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else if (m_mode == 'i')
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{
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if (start > INT_MAX)
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result = wxT("-1 -1");
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else if (start + len > 0)
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result << start << wxT(" ") << start + len - 1;
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else
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result << start << wxT(" -1");
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}
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CHECK( result == m_expected[i] );
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}
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}
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// quote a string so that it can be displayed (static)
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//
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wxString RegExTestCase::quote(const wxString& arg)
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{
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const wxChar *needEscape = wxT("\a\b\t\n\v\f\r\"\\");
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const wxChar *escapes = wxT("abtnvfr\"\\");
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wxString str;
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for (size_t i = 0; i < arg.length(); i++) {
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wxChar ch = (wxChar)arg[i];
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const wxChar *p = wxStrchr(needEscape, ch);
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if (p)
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str += wxString::Format(wxT("\\%c"), escapes[p - needEscape]);
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else if (wxIscntrl(ch))
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str += wxString::Format(wxT("\\%03o"), ch);
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else
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str += (wxChar)ch;
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}
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return str.length() == arg.length() && str.find(' ') == wxString::npos ?
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str : wxT("\"") + str + wxT("\"");
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}
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// The helper function used by the tests in auto-generated regex.inc.
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static void
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CheckRE(
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const char *mode,
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const char *id,
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const char *flags,
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const char *pattern,
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const char *data,
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const char *expected,
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...)
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{
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vector<const char *> expected_results;
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va_list ap;
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for (va_start(ap, expected); expected; expected = va_arg(ap, const char *))
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expected_results.push_back(expected);
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va_end(ap);
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RegExTestCase(mode, id, flags, pattern, data, expected_results);
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}
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// Include the generated tests
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//
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#include "regex.inc"
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#endif // wxHAS_REGEX_ADVANCED
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#endif // wxUSE_REGEX
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