| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: tests/strings/vararg.cpp |
| 3 | // Purpose: Test for wx vararg look-alike macros |
| 4 | // Author: Vaclav Slavik |
| 5 | // Created: 2007-02-20 |
| 6 | // RCS-ID: $Id$ |
| 7 | // Copyright: (c) 2007 REA Elektronik GmbH |
| 8 | // Licence: wxWindows licence |
| 9 | /////////////////////////////////////////////////////////////////////////////// |
| 10 | |
| 11 | // ---------------------------------------------------------------------------- |
| 12 | // headers |
| 13 | // ---------------------------------------------------------------------------- |
| 14 | |
| 15 | #include "testprec.h" |
| 16 | |
| 17 | #ifdef __BORLANDC__ |
| 18 | #pragma hdrstop |
| 19 | #endif |
| 20 | |
| 21 | #ifndef WX_PRECOMP |
| 22 | #include "wx/wx.h" |
| 23 | #endif // WX_PRECOMP |
| 24 | |
| 25 | #include "wx/string.h" |
| 26 | |
| 27 | // ---------------------------------------------------------------------------- |
| 28 | // test class |
| 29 | // ---------------------------------------------------------------------------- |
| 30 | |
| 31 | class VarArgTestCase : public CppUnit::TestCase |
| 32 | { |
| 33 | public: |
| 34 | VarArgTestCase() {} |
| 35 | |
| 36 | private: |
| 37 | CPPUNIT_TEST_SUITE( VarArgTestCase ); |
| 38 | CPPUNIT_TEST( StringPrintf ); |
| 39 | CPPUNIT_TEST( CharPrintf ); |
| 40 | #if wxUSE_STD_STRING |
| 41 | CPPUNIT_TEST( StdString ); |
| 42 | #endif |
| 43 | #if wxUSE_LONGLONG |
| 44 | CPPUNIT_TEST( LongLongPrintf ); |
| 45 | #endif |
| 46 | CPPUNIT_TEST( Sscanf ); |
| 47 | CPPUNIT_TEST( RepeatedPrintf ); |
| 48 | CPPUNIT_TEST( ArgsValidation ); |
| 49 | CPPUNIT_TEST_SUITE_END(); |
| 50 | |
| 51 | void StringPrintf(); |
| 52 | void CharPrintf(); |
| 53 | #if wxUSE_STD_STRING |
| 54 | void StdString(); |
| 55 | #endif |
| 56 | #if wxUSE_LONGLONG |
| 57 | void LongLongPrintf(); |
| 58 | #endif |
| 59 | void Sscanf(); |
| 60 | void RepeatedPrintf(); |
| 61 | void ArgsValidation(); |
| 62 | |
| 63 | DECLARE_NO_COPY_CLASS(VarArgTestCase) |
| 64 | }; |
| 65 | |
| 66 | // register in the unnamed registry so that these tests are run by default |
| 67 | CPPUNIT_TEST_SUITE_REGISTRATION( VarArgTestCase ); |
| 68 | |
| 69 | // also include in its own registry so that these tests can be run alone |
| 70 | CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( VarArgTestCase, "VarArgTestCase" ); |
| 71 | |
| 72 | void VarArgTestCase::StringPrintf() |
| 73 | { |
| 74 | wxString s, s2; |
| 75 | |
| 76 | // test passing literals: |
| 77 | s.Printf("%s %i", "foo", 42); |
| 78 | CPPUNIT_ASSERT( s == "foo 42" ); |
| 79 | s.Printf("%s %s %i", wxT("bar"), "=", 11); |
| 80 | |
| 81 | // test passing c_str(): |
| 82 | CPPUNIT_ASSERT( s == "bar = 11" ); |
| 83 | s2.Printf("(%s)", s.c_str()); |
| 84 | CPPUNIT_ASSERT( s2 == "(bar = 11)" ); |
| 85 | s2.Printf(wxT("[%s](%s)"), s.c_str(), "str"); |
| 86 | CPPUNIT_ASSERT( s2 == "[bar = 11](str)" ); |
| 87 | |
| 88 | s2.Printf("%s mailbox", wxString("Opening").c_str()); |
| 89 | CPPUNIT_ASSERT( s2 == "Opening mailbox" ); |
| 90 | |
| 91 | // test passing wxString directly: |
| 92 | s2.Printf(wxT("[%s](%s)"), s, "str"); |
| 93 | CPPUNIT_ASSERT( s2 == "[bar = 11](str)" ); |
| 94 | |
| 95 | // test passing wxCharBufferType<T>: |
| 96 | s = "FooBar"; |
| 97 | s2.Printf(wxT("(%s)"), s.mb_str()); |
| 98 | CPPUNIT_ASSERT( s2 == "(FooBar)" ); |
| 99 | s2.Printf(wxT("value=%s;"), s.wc_str()); |
| 100 | CPPUNIT_ASSERT( s2 == "value=FooBar;" ); |
| 101 | |
| 102 | // this tests correct passing of wxCStrData constructed from string |
| 103 | // literal: |
| 104 | bool cond = true; |
| 105 | s2.Printf(wxT("foo %s"), !cond ? s.c_str() : wxT("bar")); |
| 106 | } |
| 107 | |
| 108 | void VarArgTestCase::CharPrintf() |
| 109 | { |
| 110 | wxString foo("foo"); |
| 111 | wxString s; |
| 112 | |
| 113 | // test using wchar_t: |
| 114 | s.Printf("char=%c", L'c'); |
| 115 | CPPUNIT_ASSERT_EQUAL( "char=c", s ); |
| 116 | |
| 117 | // test wxUniCharRef: |
| 118 | s.Printf("string[1] is %c", foo[1]); |
| 119 | CPPUNIT_ASSERT_EQUAL( "string[1] is o", s ); |
| 120 | |
| 121 | // test char |
| 122 | char c = 'z'; |
| 123 | s.Printf("%c to %c", 'a', c); |
| 124 | CPPUNIT_ASSERT_EQUAL( "a to z", s ); |
| 125 | |
| 126 | // test char used as integer: |
| 127 | #ifdef _MSC_VER |
| 128 | #pragma warning(disable:4305) // truncation of constant value in VC6 |
| 129 | #pragma warning(disable:4309) // truncation of constant value |
| 130 | #endif |
| 131 | c = 240; |
| 132 | #ifdef _MSC_VER |
| 133 | #pragma warning(default:4305) // truncation of constant value in VC6 |
| 134 | #pragma warning(default:4309) |
| 135 | #endif |
| 136 | s.Printf("value is %i (int)", c); |
| 137 | CPPUNIT_ASSERT_EQUAL( wxString("value is -16 (int)"), s ); |
| 138 | |
| 139 | unsigned char u = 240; |
| 140 | s.Printf("value is %i (int)", u); |
| 141 | CPPUNIT_ASSERT_EQUAL( "value is 240 (int)", s ); |
| 142 | } |
| 143 | |
| 144 | #if wxUSE_STD_STRING |
| 145 | void VarArgTestCase::StdString() |
| 146 | { |
| 147 | // test passing std::[w]string |
| 148 | wxString s; |
| 149 | |
| 150 | std::string mb("multi-byte"); |
| 151 | std::string wc("widechar"); |
| 152 | |
| 153 | s.Printf("string %s(%i).", mb, 1); |
| 154 | CPPUNIT_ASSERT_EQUAL( "string multi-byte(1).", s ); |
| 155 | |
| 156 | s.Printf("string %s(%i).", wc, 2); |
| 157 | CPPUNIT_ASSERT_EQUAL( "string widechar(2).", s ); |
| 158 | } |
| 159 | #endif // wxUSE_STD_STRING |
| 160 | |
| 161 | #if wxUSE_LONGLONG |
| 162 | void VarArgTestCase::LongLongPrintf() |
| 163 | { |
| 164 | const char * const llfmt = "%" wxLongLongFmtSpec "d"; |
| 165 | |
| 166 | CPPUNIT_ASSERT_EQUAL( "17", wxString::Format(llfmt, wxLL(17)) ); |
| 167 | |
| 168 | wxLongLong ll = 1234567890; |
| 169 | CPPUNIT_ASSERT_EQUAL( "1234567890", wxString::Format(llfmt, ll) ); |
| 170 | } |
| 171 | #endif // wxUSE_LONGLONG |
| 172 | |
| 173 | void VarArgTestCase::Sscanf() |
| 174 | { |
| 175 | int i = 0; |
| 176 | char str[20]; |
| 177 | wchar_t wstr[20]; |
| 178 | |
| 179 | wxString input("42 test"); |
| 180 | |
| 181 | wxSscanf(input, "%d %s", &i, &str); |
| 182 | CPPUNIT_ASSERT( i == 42 ); |
| 183 | CPPUNIT_ASSERT( wxStrcmp(str, "test") == 0 ); |
| 184 | |
| 185 | i = 0; |
| 186 | wxSscanf(input, L"%d %s", &i, &wstr); |
| 187 | CPPUNIT_ASSERT( i == 42 ); |
| 188 | CPPUNIT_ASSERT( wxStrcmp(wstr, "test") == 0 ); |
| 189 | } |
| 190 | |
| 191 | void VarArgTestCase::RepeatedPrintf() |
| 192 | { |
| 193 | wxCharBuffer buffer(2); |
| 194 | char *p = buffer.data(); |
| 195 | *p = 'h'; |
| 196 | p++; |
| 197 | *p = 'i'; |
| 198 | |
| 199 | wxString s; |
| 200 | s = wxString::Format("buffer %s, len %d", buffer, (int)wxStrlen(buffer)); |
| 201 | CPPUNIT_ASSERT_EQUAL("buffer hi, len 2", s); |
| 202 | |
| 203 | s = wxString::Format("buffer %s, len %d", buffer, (int)wxStrlen(buffer)); |
| 204 | CPPUNIT_ASSERT_EQUAL("buffer hi, len 2", s); |
| 205 | } |
| 206 | |
| 207 | void VarArgTestCase::ArgsValidation() |
| 208 | { |
| 209 | void *ptr = this; |
| 210 | int written; |
| 211 | short int swritten; |
| 212 | |
| 213 | // these are valid: |
| 214 | wxString::Format("a string(%s,%s), ptr %p, int %i", |
| 215 | wxString(), "foo", "char* as pointer", 1); |
| 216 | |
| 217 | // Microsoft has helpfully disabled support for "%n" in their CRT by |
| 218 | // default starting from VC8 and somehow even calling |
| 219 | // _set_printf_count_output() doesn't help here, so don't use "%n" at all |
| 220 | // with it. |
| 221 | #if wxCHECK_VISUALC_VERSION(8) |
| 222 | #define wxNO_PRINTF_PERCENT_N |
| 223 | #endif // VC8+ |
| 224 | |
| 225 | // Similarly, many modern Linux distributions ship with g++ that uses |
| 226 | // -D_FORTIFY_SOURCE=2 flag by default and this option prevents "%n" from |
| 227 | // being used in a string outside of read-only memory, meaning that it |
| 228 | // can't be used in wxString to which we (may, depending on build options) |
| 229 | // assign it, so also disable testing of "%n" in this case lest we die with |
| 230 | // an abort inside vswprintf(). |
| 231 | #if defined(_FORTIFY_SOURCE) |
| 232 | #if _FORTIFY_SOURCE >= 2 |
| 233 | #define wxNO_PRINTF_PERCENT_N |
| 234 | #endif |
| 235 | #endif |
| 236 | |
| 237 | #ifndef wxNO_PRINTF_PERCENT_N |
| 238 | wxString::Format("foo%i%n", 42, &written); |
| 239 | CPPUNIT_ASSERT_EQUAL( 5, written ); |
| 240 | #endif |
| 241 | |
| 242 | // but these are not: |
| 243 | WX_ASSERT_FAILS_WITH_ASSERT( wxString::Format("%i: too many arguments", 42, 1, 2, 3) ); |
| 244 | WX_ASSERT_FAILS_WITH_ASSERT( wxString::Format("%i", "foo") ); |
| 245 | WX_ASSERT_FAILS_WITH_ASSERT( wxString::Format("%s", (void*)this) ); |
| 246 | |
| 247 | // for some reason assert is not generated with VC6, don't know what's |
| 248 | // going there so disable it for now to make the test suite pass when using |
| 249 | // this compiler until someone has time to debug this (FIXME-VC6) |
| 250 | #ifndef __VISUALC6__ |
| 251 | WX_ASSERT_FAILS_WITH_ASSERT( wxString::Format("%d", ptr) ); |
| 252 | #endif |
| 253 | |
| 254 | // we don't check wxNO_PRINTF_PERCENT_N here as these expressions should |
| 255 | // result in an assert in our code before the CRT functions are even called |
| 256 | WX_ASSERT_FAILS_WITH_ASSERT( wxString::Format("foo%i%n", &written) ); |
| 257 | WX_ASSERT_FAILS_WITH_ASSERT( wxString::Format("foo%n", ptr) ); |
| 258 | WX_ASSERT_FAILS_WITH_ASSERT( wxString::Format("foo%i%n", 42, &swritten) ); |
| 259 | |
| 260 | // the following test (correctly) fails at compile-time with <type_traits> |
| 261 | #if !defined(HAVE_TYPE_TRAITS) && !defined(HAVE_TR1_TYPE_TRAITS) |
| 262 | wxObject obj; |
| 263 | WX_ASSERT_FAILS_WITH_ASSERT( wxString::Format("%s", obj) ); |
| 264 | |
| 265 | wxObject& ref = obj; |
| 266 | WX_ASSERT_FAILS_WITH_ASSERT( wxString::Format("%s", ref) ); |
| 267 | #endif |
| 268 | |
| 269 | // %c should accept integers too |
| 270 | wxString::Format("%c", 80); |
| 271 | wxString::Format("%c", wxChar(80) + wxChar(1)); |
| 272 | |
| 273 | // check size_t handling |
| 274 | size_t len = sizeof(*this); |
| 275 | #ifdef __WXMSW__ |
| 276 | wxString::Format("%Iu", len); |
| 277 | #else |
| 278 | wxString::Format("%zu", len); |
| 279 | #endif |
| 280 | } |