#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], buf2[MAX_TEST_LEN];
+
+
+// these macros makes it possible to write all tests without repeating a lot of times wxT() macro
+
+#define CMP5(expected, x, y, z, w) \
+ wxSnprintf(buf, MAX_TEST_LEN, wxT(x), y, z, w); \
+ snprintf(buf2, MAX_TEST_LEN, wxT(x), y, z, w); \
+ \
+ CPPUNIT_ASSERT_STR_EQUAL( buf2, buf ); \
+ CPPUNIT_ASSERT_STR_EQUAL( expected, buf );
+
+#define CMP4(expected, x, y, z) \
+ wxSnprintf(buf, MAX_TEST_LEN, wxT(x), y, z); \
+ snprintf(buf2, MAX_TEST_LEN, wxT(x), y, z); \
+ \
+ CPPUNIT_ASSERT_STR_EQUAL( buf2, buf ); \
+ CPPUNIT_ASSERT_STR_EQUAL( expected, buf );
+
+#define CMP3(expected, x, y) \
+ wxSnprintf(buf, MAX_TEST_LEN, wxT(x), y); \
+ snprintf(buf2, MAX_TEST_LEN, wxT(x), y); \
+ \
+ CPPUNIT_ASSERT_STR_EQUAL( buf2, buf ); \
+ CPPUNIT_ASSERT_STR_EQUAL( expected, buf );
+
+#define CMP2(expected, x) \
+ wxSnprintf(buf, MAX_TEST_LEN, wxT(x)); \
+ snprintf(buf2, MAX_TEST_LEN, wxT(x)); \
+ \
+ CPPUNIT_ASSERT_STR_EQUAL( buf2, buf ); \
+ CPPUNIT_ASSERT_STR_EQUAL( expected, buf );
+
+#define CMPTOSIZE(buffer, size, fmt, x, y, z, w) \
+ wxSnprintf(buf, MAX_TEST_LEN, wxT(fmt), x, y, z, w); \
+ snprintf(buf2, MAX_TEST_LEN, wxT(fmt), x, y, z, w); \
+ \
+ CPPUNIT_ASSERT_EQUAL( wxString(buf2, size), wxString(buf, size) );
+
// ----------------------------------------------------------------------------
// test class
CPPUNIT_TEST( F );
CPPUNIT_TEST( G );
CPPUNIT_TEST( S );
+ CPPUNIT_TEST( Asterisk );
CPPUNIT_TEST( BigToSmallBuffer );
CPPUNIT_TEST_SUITE_END();
void F();
void G();
void S();
+ void Asterisk();
void BigToSmallBuffer();
-
- // some helpers
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
-{
-#if USE_LIBC
- va_list argptr2;
- wxVaCopy(argptr2, argptr);
-#endif
-
- wxVsnprintf( buf, len, format, argptr );
- va_end(argptr);
-
-#if USE_LIBC
- vsnprintf( buf2, len, format, argptr2 ); // use system's implementation
- va_end(argptr2);
-#else
- wxUnusedVar(buf2);
-#endif
-}
-
-void VsnprintfTestCase::Compare(const wxChar *expected, const wxChar *format, ...) const
-{
- static wxChar buf[1024],
- buf2[1024];
-
- va_list argptr;
- va_start( argptr, format );
- CompareV( buf, buf2, 1024, format, argptr );
- va_end(argptr);
-
-#if USE_LIBC
- CPPUNIT_ASSERT_STR_EQUAL( buf, buf2 );
-#else
- CPPUNIT_ASSERT_STR_EQUAL( buf, expected );
-#endif
-}
-
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"));
+
+ // some tests without any argument passed through ...
+ CMP2(wxT("%"), wxT("%%"));
+ CMP2(wxT("%%%"), wxT("%%%%%%"));
+
+ // 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("%%%"));
+}
+
+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);
- CMP("abcde", "%.5s", wxT("abcdefghi"));
+ CMP4("%0.002", "%%%.*f", 3, 0.0023456789);
}
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,
+ wxT("%i %li - test - %d %.3f"),
+ 123, (long int)444444444, 555, -0.666);
+
+#if wxUSE_PRINTF_POS_PARAMS
+ // test with positional
+ CMPTOSIZE(buffer, size,
+ wxT("%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,
+ wxT("unicode string: %ls %lc - ansi string: %hs %hc\n\n"),
+ L"unicode!!", L'W', "ansi!!", 'w');
}
void VsnprintfTestCase::BigToSmallBuffer()
projects / wxWidgets.git / blobdiff