#endif // WX_PRECOMP
-// if 1 then instead of the hard-coded expected strings, the obtained results will be
-// compared to the output of the system's vsnprintf() implementation.
-// NOTE: this requires a vsnprintf() implementation which supports positional parameters.
-#define USE_LIBC 0
-// this makes it possible to write all tests without repeating a lot of times wxT() macro
-#define CMP(x, y, z) Compare(wxT(x), wxT(y), z)
+#define MAX_TEST_LEN 1024
+
+
+// temporary buffers
+static wxChar buf[MAX_TEST_LEN];
+
+// these macros makes it possible to write all tests without repeating a lot of times wxT() macro
+
+#define ASSERT_STR_EQUAL( a, b ) \
+ CPPUNIT_ASSERT_EQUAL( wxString(a), wxString(b) );
+
+#define CMP5(expected, x, y, z, w) \
+ wxSnprintf(buf, MAX_TEST_LEN, wxT(x), y, z, w); \
+ \
+ ASSERT_STR_EQUAL( wxT(expected), buf );
+
+#define CMP4(expected, x, y, z) \
+ wxSnprintf(buf, MAX_TEST_LEN, wxT(x), y, z); \
+ \
+ ASSERT_STR_EQUAL( wxT(expected), buf );
+
+#define CMP3(expected, x, y) \
+ wxSnprintf(buf, MAX_TEST_LEN, wxT(x), y); \
+ \
+ ASSERT_STR_EQUAL( wxT(expected), buf );
+
+#define CMP2(expected, x) \
+ wxSnprintf(buf, MAX_TEST_LEN, wxT(x)); \
+ \
+ ASSERT_STR_EQUAL( wxT(expected), buf );
+
+#define CMPTOSIZE(buffer, size, expected, fmt, x, y, z, w) \
+ wxSnprintf(buffer, size, wxT(fmt), x, y, z, w); \
+ \
+ CPPUNIT_ASSERT_EQUAL( wxString(wxT(expected)).Left(size - 1), \
+ wxString(buffer) )
+
+
// ----------------------------------------------------------------------------
// test class
private:
CPPUNIT_TEST_SUITE( VsnprintfTestCase );
+ CPPUNIT_TEST( D );
+ CPPUNIT_TEST( X );
+ CPPUNIT_TEST( O );
+ CPPUNIT_TEST( P );
+ CPPUNIT_TEST( N );
CPPUNIT_TEST( E );
CPPUNIT_TEST( F );
CPPUNIT_TEST( G );
CPPUNIT_TEST( S );
+ CPPUNIT_TEST( Asterisk );
+ CPPUNIT_TEST( Percent );
+#ifdef wxLongLong_t
+ CPPUNIT_TEST( LongLong );
+#endif
CPPUNIT_TEST( BigToSmallBuffer );
+ CPPUNIT_TEST( Miscellaneous );
CPPUNIT_TEST_SUITE_END();
+ void D();
+ void X();
+ void O();
+ void P();
+ void N();
void E();
void F();
void G();
void S();
+ void Asterisk();
+ void Percent();
+#ifdef wxLongLong_t
+ void LongLong();
+#endif
+ void Unicode();
void BigToSmallBuffer();
-
- // some helpers
+ void Miscellaneous();
void Misc(wxChar *buffer, int size);
- void Compare(const wxChar *expected, const wxChar *format, ...) const;
- void CompareV(wxChar *buf, wxChar *buf2, size_t len, const wxChar *format, va_list argptr) const;
DECLARE_NO_COPY_CLASS(VsnprintfTestCase)
};
{
}
-void VsnprintfTestCase::CompareV(wxChar *buf, wxChar *buf2, size_t len,
- const wxChar *format, va_list argptr) const
+void VsnprintfTestCase::D()
{
-#if USE_LIBC
- va_list argptr2;
- wxVaCopy(argptr2, argptr);
-#endif
+ CMP3("+123456", "%+d", 123456);
+ CMP3("-123456", "%d", -123456);
+ CMP3(" 123456", "% d", 123456);
+ CMP3(" 123456", "%10d", 123456);
+ CMP3("0000123456", "%010d", 123456);
+ CMP3("-123456 ", "%-10d", -123456);
+}
- wxVsnprintf( buf, len, format, argptr );
- va_end(argptr);
+void VsnprintfTestCase::X()
+{
+ CMP3("ABCD", "%X", 0xABCD);
+ CMP3("0XABCD", "%#X", 0xABCD);
+ CMP3("0xabcd", "%#x", 0xABCD);
+}
-#if USE_LIBC
- vsnprintf( buf2, len, format, argptr2 ); // use system's implementation
- va_end(argptr2);
-#else
- wxUnusedVar(buf2);
-#endif
+void VsnprintfTestCase::O()
+{
+ CMP3("1234567", "%o", 01234567);
+ CMP3("01234567", "%#o", 01234567);
}
-void VsnprintfTestCase::Compare(const wxChar *expected, const wxChar *format, ...) const
+void VsnprintfTestCase::P()
{
- static wxChar buf[1024],
- buf2[1024];
+ // WARNING: printing of pointers is not fully standard.
+ // GNU prints them as %#x except for NULL pointers which are
+ // printed as '(nil)'.
+ // MSVC always print them as %8X on 32 bit systems and as %16X
+ // on 64 bit systems
+#ifdef __VISUALC__
+ #if SIZEOF_VOID_P == 4
+ CMP3("00ABCDEF", "%p", (void*)0xABCDEF);
+ CMP3("00000000", "%p", (void*)NULL);
+ #elif SIZEOF_VOID_P == 8
+ CMP3("0000ABCDEFABCDEF", "%p", (void*)0xABCDEFABCDEF);
+ CMP3("0000000000000000", "%p", (void*)NULL);
+ #endif
+#elif defined(__GNUG__)
+ CMP3("0xabcdef", "%p", (void*)0xABCDEF);
+ CMP3("(nil)", "%p", (void*)NULL);
+#endif
+}
- va_list argptr;
- va_start( argptr, format );
- CompareV( buf, buf2, 1024, format, argptr );
- va_end(argptr);
+void VsnprintfTestCase::N()
+{
+ int nchar;
-#if USE_LIBC
- CPPUNIT_ASSERT_STR_EQUAL( buf, buf2 );
-#else
- CPPUNIT_ASSERT_STR_EQUAL( buf, expected );
-#endif
+ wxSnprintf(buf, MAX_TEST_LEN, _T("%d %s%n\n"), 3, _T("bears"), &nchar);
+ CPPUNIT_ASSERT_EQUAL( 7, nchar );
}
void VsnprintfTestCase::E()
{
- CMP("2.342000e+02", "%e",2.342E+02);
- CMP("-2.3420e-02", "%10.4e",-2.342E-02);
- CMP("-2.3420e-02", "%11.4e",-2.342E-02);
- CMP(" -2.3420e-02", "%15.4e",-2.342E-02);
-
- CMP("-0.02342", "%G",-2.342E-02);
- CMP("3.1415E-06", "%G",3.1415e-6);
- CMP("00003.141500e+03", "%016e", 3141.5);
- CMP(" 3.141500e+03", "%16e", 3141.5);
- CMP("3.141500e+03 ", "%-16e", 3141.5);
- CMP("03.142e+03", "%010.3e", 3141.5);
+ // NB: there are no standards about the minimum exponent width
+ // (and the width of the %e conversion specifier refers to the
+ // mantissa, not to the exponent).
+ // Since newer MSVC versions use 3 digits as minimum exponent
+ // width while GNU libc uses 2 digits as minimum width, here we
+ // workaround this problem using for the exponent values with at
+ // least three digits.
+ // Some examples:
+ // printf("%e",2.342E+02);
+ // -> under MSVC7.1 prints: 2.342000e+002
+ // -> under GNU libc 2.4 prints: 2.342000e+02
+ CMP3("2.342000e+112", "%e",2.342E+112);
+ CMP3("-2.3420e-112", "%10.4e",-2.342E-112);
+ CMP3("-2.3420e-112", "%11.4e",-2.342E-112);
+ CMP3(" -2.3420e-112", "%15.4e",-2.342E-112);
+
+ CMP3("-0.02342", "%G",-2.342E-02);
+ CMP3("3.1415E-116", "%G",3.1415e-116);
+ CMP3("0003.141500e+103", "%016e", 3141.5e100);
+ CMP3(" 3.141500e+103", "%16e", 3141.5e100);
+ CMP3("3.141500e+103 ", "%-16e", 3141.5e100);
+ CMP3("3.142e+103", "%010.3e", 3141.5e100);
}
void VsnprintfTestCase::F()
{
- CMP("3.300000", "%5f", 3.3);
- CMP("3.000000", "%5f", 3.0);
- CMP("0.000100", "%5f", .999999E-4);
- CMP("0.000990", "%5f", .99E-3);
- CMP("3333.000000", "%5f", 3333.0);
+ CMP3("3.300000", "%5f", 3.3);
+ CMP3("3.000000", "%5f", 3.0);
+ CMP3("0.000100", "%5f", .999999E-4);
+ CMP3("0.000990", "%5f", .99E-3);
+ CMP3("3333.000000", "%5f", 3333.0);
}
void VsnprintfTestCase::G()
{
- CMP(" 3.3", "%5g", 3.3);
- CMP(" 3", "%5g", 3.0);
- CMP("9.99999e-05", "%5g", .999999E-4);
- CMP("0.00099", "%5g", .99E-3);
- CMP(" 3333", "%5g", 3333.0);
- CMP(" 0.01", "%5g", 0.01);
-
- CMP(" 3", "%5.g", 3.3);
- CMP(" 3", "%5.g", 3.0);
- CMP("1e-04", "%5.g", .999999E-4);
- CMP("0.0001", "%5.g", 1.0E-4);
- CMP("0.001", "%5.g", .99E-3);
- CMP("3e+03", "%5.g", 3333.0);
- CMP(" 0.01", "%5.g", 0.01);
-
- CMP(" 3.3", "%5.2g", 3.3);
- CMP(" 3", "%5.2g", 3.0);
- CMP("1e-04", "%5.2g", .999999E-4);
- CMP("0.00099", "%5.2g", .99E-3);
- CMP("3.3e+03", "%5.2g", 3333.0);
- CMP(" 0.01", "%5.2g", 0.01);
+ // NOTE: the same about E() testcase applies here...
+
+ CMP3(" 3.3", "%5g", 3.3);
+ CMP3(" 3", "%5g", 3.0);
+ CMP3("9.99999e-115", "%5g", .999999E-114);
+ CMP3("0.00099", "%5g", .99E-3);
+ CMP3(" 3333", "%5g", 3333.0);
+ CMP3(" 0.01", "%5g", 0.01);
+
+ CMP3(" 3", "%5.g", 3.3);
+ CMP3(" 3", "%5.g", 3.0);
+ CMP3("1e-114", "%5.g", .999999E-114);
+ CMP3("0.0001", "%5.g", 1.0E-4);
+ CMP3("0.001", "%5.g", .99E-3);
+ CMP3("3e+103", "%5.g", 3333.0E100);
+ CMP3(" 0.01", "%5.g", 0.01);
+
+ CMP3(" 3.3", "%5.2g", 3.3);
+ CMP3(" 3", "%5.2g", 3.0);
+ CMP3("1e-114", "%5.2g", .999999E-114);
+ CMP3("0.00099", "%5.2g", .99E-3);
+ CMP3("3.3e+103", "%5.2g", 3333.0E100);
+ CMP3(" 0.01", "%5.2g", 0.01);
}
void VsnprintfTestCase::S()
{
- CMP(" abc", "%5s", wxT("abc"));
- CMP(" a", "%5s", wxT("a"));
- CMP("abcdefghi", "%5s", wxT("abcdefghi"));
- CMP("abc ", "%-5s", wxT("abc"));
- CMP("abcdefghi", "%-5s", wxT("abcdefghi"));
+ CMP3(" abc", "%5s", wxT("abc"));
+ CMP3(" a", "%5s", wxT("a"));
+ CMP3("abcdefghi", "%5s", wxT("abcdefghi"));
+ CMP3("abc ", "%-5s", wxT("abc"));
+ CMP3("abcdefghi", "%-5s", wxT("abcdefghi"));
+
+ CMP3("abcde", "%.5s", wxT("abcdefghi"));
+
+ // do the same tests but with Unicode characters:
+#if wxUSE_UNICODE
+ #define ALPHA "\x3B1"
+ #define BETA "\x3B2"
+ #define GAMMA "\x3B3"
+ #define DELTA "\x3B4"
+ #define EPSILON "\x3B5"
+ #define ZETA "\x3B6"
+ #define ETA "\x3B7"
+ #define THETA "\x3B8"
+ #define IOTA "\x3B9"
+
+ #define ABC ALPHA BETA GAMMA
+ #define ABCDE ALPHA BETA GAMMA DELTA EPSILON
+ #define ABCDEFGHI ALPHA BETA GAMMA DELTA EPSILON ZETA ETA THETA IOTA
+
+ CMP3(" " ABC, "%5s", wxT(ABC));
+ CMP3(" " ALPHA, "%5s", wxT(ALPHA));
+ CMP3(ABCDEFGHI, "%5s", wxT(ABCDEFGHI));
+ CMP3(ABC " ", "%-5s", wxT(ABC));
+ CMP3(ABCDEFGHI, "%-5s", wxT(ABCDEFGHI));
+
+ CMP3(ABCDE, "%.5s", wxT(ABCDEFGHI));
+#endif
+}
- CMP("abcde", "%.5s", wxT("abcdefghi"));
+void VsnprintfTestCase::Asterisk()
+{
+ CMP5(" 0.1", "%*.*f", 10, 1, 0.123);
+ CMP5(" 0.1230", "%*.*f", 10, 4, 0.123);
+ CMP5("0.1", "%*.*f", 3, 1, 0.123);
+
+ CMP4("%0.002", "%%%.*f", 3, 0.0023456789);
}
+void VsnprintfTestCase::Percent()
+{
+ // some tests without any argument passed through ...
+ CMP2("%", "%%");
+ CMP2("%%%", "%%%%%%");
+
+ CMP3("% abc", "%%%5s", wxT("abc"));
+ CMP3("% abc%", "%%%5s%%", wxT("abc"));
+
+ // do not test odd number of '%' symbols as different implementations
+ // of snprintf() give different outputs as this situation is not considered
+ // by any standard (in fact, GCC will also warn you about a spurious % if
+ // you write %%% as argument of some *printf function !)
+ // Compare(wxT("%"), wxT("%%%"));
+}
+
+#ifdef wxLongLong_t
+void VsnprintfTestCase::LongLong()
+{
+ CMP3("123456789", "%lld", (wxLongLong_t)123456789);
+ CMP3("-123456789", "%lld", (wxLongLong_t)-123456789);
+
+ CMP3("123456789", "%llu", (wxULongLong_t)123456789);
+}
+#endif
+
void VsnprintfTestCase::Misc(wxChar *buffer, int size)
{
- int ret;
+ // NB: remember that wx*printf could be mapped either to system
+ // implementation or to wx implementation.
+ // In the first case, when the output buffer is too small, the returned
+ // value can be the number of characters required for the output buffer
+ // (conforming to ISO C99; implemented in e.g. GNU libc >= 2.1), or
+ // just a negative number, usually -1; (this is how e.g. MSVC's
+ // *printf() behaves). Fortunately, in all implementations, when the
+ // output buffer is too small, it's nonetheless filled up to its max
+ // size.
// test without positionals
- ret = wxSnprintf(buffer, size,
- wxT("\n\n%s %e %le %i %li - test - %d %i %% -%*.*f-\n\n"), wxT("aa"), 123.123,
- 123123123123123123123123.123123123123, 456, (long int)33333333, 789, 999, 10, 1, 0.123);
- if (ret >= 0)
- {
- CPPUNIT_ASSERT_STR_EQUAL(
- wxT("\n\naa 1.231230e+02 1.231231e+23 456 33333333 - test - 789 999 %% - 0.1-\n\n"),
- buffer);
- }
-
- // test woth positional
- ret = wxSnprintf(buffer, size,
- wxT("\n\n%8$s %2$e %3$le %4$i %5$li - test - %6$d %7$i %% %1$.4f\n\n"), 0.123123123, 123.123,
- 123123123123123123123123.123123123123, 456, (long int)33333333, 789, 999, wxT("aa"));
- if (ret >= 0)
- {
- CPPUNIT_ASSERT_STR_EQUAL(
- wxT("\n\naa 1.231230e+02 1.231231e+23 456 33333333 - test - 789 999 %% 0.1231\n\n"),
- buffer);
- }
+ CMPTOSIZE(buffer, size, "123 444444444 - test - 555 -0.666",
+ "%i %li - test - %d %.3f",
+ 123, (long int)444444444, 555, -0.666);
+
+#if wxUSE_PRINTF_POS_PARAMS
+ // test with positional
+ CMPTOSIZE(buffer, size, "-0.666 123 - test - 444444444 555",
+ "%4$.3f %1$i - test - %2$li %3$d",
+ 123, (long int)444444444, 555, -0.666);
+#endif
// test unicode/ansi conversion specifiers
- ret = wxSnprintf(buffer, size,
- wxT("\n\nunicode string: %ls %lc - ansi string: %hs %hc\n\n"), L"unicode!!", L'W', "ansi!!", 'w');
- if (ret >= 0)
- {
- CPPUNIT_ASSERT_STR_EQUAL(
- wxT("\n\nunicode string: unicode!! W - ansi string: ansi!! w\n\n"),
- buffer);
- }
+ // NB: this line will output two warnings like these, on GCC:
+ // warning: use of 'h' length modifier with 's' type character (i.e.
+ // GCC warns you that 'h' is not legal on 's' conv spec) but they must
+ // be ignored as here we explicitely want to test the wxSnprintf()
+ // behaviour in such case
+
+ CMPTOSIZE(buffer, size,
+ "unicode string: unicode!! W - ansi string: ansi!! w\n\n",
+ "unicode string: %ls %lc - ansi string: %hs %hc\n\n",
+ L"unicode!!", L'W', "ansi!!", 'w');
}
void VsnprintfTestCase::BigToSmallBuffer()
Misc(buf3, 4);
Misc(&buf4, 1);
}
+
+static void DoMisc(
+ 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] == '*');
+}
+
+void VsnprintfTestCase::Miscellaneous()
+{
+ // expectedLen, expectedString, max, format, ...
+ DoMisc(5, wxT("-1234"), 8, wxT("%d"), -1234);
+ DoMisc(7, wxT("1234567"), 8, wxT("%d"), 1234567);
+ DoMisc(-1, wxT("1234567"), 8, wxT("%d"), 12345678);
+ DoMisc(-1, wxT("-123456"), 8, wxT("%d"), -1234567890);
+
+ DoMisc(6, wxT("123456"), 8, wxT("123456"));
+ DoMisc(7, wxT("1234567"), 8, wxT("1234567"));
+ DoMisc(-1, wxT("1234567"), 8, wxT("12345678"));
+
+ DoMisc(6, wxT("123450"), 8, wxT("12345%d"), 0);
+ DoMisc(7, wxT("1234560"), 8, wxT("123456%d"), 0);
+ DoMisc(-1, wxT("1234567"), 8, wxT("1234567%d"), 0);
+ DoMisc(-1, wxT("1234567"), 8, wxT("12345678%d"), 0);
+
+ DoMisc(6, wxT("12%45%"), 8, wxT("12%%45%%"));
+ DoMisc(7, wxT("12%45%7"), 8, wxT("12%%45%%7"));
+ DoMisc(-1, wxT("12%45%7"), 8, wxT("12%%45%%78"));
+
+ DoMisc(5, wxT("%%%%%"), 6, wxT("%%%%%%%%%%"));
+ DoMisc(6, wxT("%%%%12"), 7, wxT("%%%%%%%%%d"), 12);
+}
projects / wxWidgets.git / blobdiff