From ead84f05c3116fec519a27be776b1206416195d9 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Sun, 27 Mar 2011 23:59:51 -0400 Subject: new snprintf and swprintf tests --- snprintf.c | 4 ++ swprintf.c | 138 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ testsuite.c | 1 + 3 files changed, 143 insertions(+) create mode 100644 swprintf.c diff --git a/snprintf.c b/snprintf.c index 1e563e5..8d06add 100644 --- a/snprintf.c +++ b/snprintf.c @@ -95,6 +95,10 @@ int test_snprintf(void) int err=0; char b[500], *s; + TEST(i, snprintf(0, 0, "%d", 123456), 6, "length returned %d != %d"); + TEST(i, snprintf(0, 0, "%.4s", "hello"), 4, "length returned %d != %d"); + TEST(i, snprintf(b, 0, "%.0s", "goodbye"), 0, "length returned %d != %d"); + strcpy(b, "xxxxxxxx"); TEST(i, snprintf(b, 4, "%d", 123456), 6, "length returned %d != %d"); TEST_S(b, "123", "incorrect output"); diff --git a/swprintf.c b/swprintf.c new file mode 100644 index 0000000..180d9ca --- /dev/null +++ b/swprintf.c @@ -0,0 +1,138 @@ +#include +#include +#include +#include +#include +#include +#include +#include + +#define TEST(r, f, x, m) ( \ +((r) = (f)) == (x) || \ +(printf(__FILE__ ":%d: %s failed (" m ")\n", __LINE__, #f, r, x), err++, 0) ) + +#define TEST_S(s, x, m) ( \ +!wcscmp((s),(x)) || \ +(printf(__FILE__ ":%d: [%ls] != [%ls] (%s)\n", __LINE__, s, x, m), err++, 0) ) + +static const struct { + const wchar_t *fmt; + int i; + const wchar_t *expect; +} int_tests[] = { + /* width, precision, alignment */ + { L"%04d", 12, L"0012" }, + { L"%.3d", 12, L"012" }, + { L"%3d", 12, L" 12" }, + { L"%-3d", 12, L"12 " }, + { L"%+3d", 12, L"+12" }, + { L"%+-5d", 12, L"+12 " }, + { L"%+- 5d", 12, L"+12 " }, + { L"%- 5d", 12, L" 12 " }, + { L"% d", 12, L" 12" }, + { L"%0-5d", 12, L"12 " }, + { L"%-05d", 12, L"12 " }, + + /* ...explicit precision of 0 shall be no characters. */ + { L"%.0d", 0, L"" }, + { L"%.0o", 0, L"" }, + { L"%#.0d", 0, L"" }, + { L"%#.0o", 0, L"" }, + { L"%#.0x", 0, L"" }, + + /* hex: test alt form and case */ + { L"%x", 63, L"3f" }, + { L"%#x", 63, L"0x3f" }, + { L"%X", 63, L"3F" }, + + /* octal: test alt form */ + { L"%o", 15, L"17" }, + { L"%#o", 15, L"017" }, + + { NULL, 0.0, NULL } +}; + +static const struct { + const wchar_t *fmt; + double f; + const wchar_t *expect; +} fp_tests[] = { + /* basic form, handling of exponent/precision for 0 */ + { L"%e", 0.0, L"0.000000e+00" }, + { L"%f", 0.0, L"0.000000" }, + { L"%g", 0.0, L"0" }, + { L"%#g", 0.0, L"0.00000" }, + + /* rounding */ + { L"%f", 1.1, L"1.100000" }, + { L"%f", 1.2, L"1.200000" }, + { L"%f", 1.3, L"1.300000" }, + { L"%f", 1.4, L"1.400000" }, + { L"%f", 1.5, L"1.500000" }, + + /* correctness in DBL_DIG places */ + { L"%.15g", 1.23456789012345, L"1.23456789012345" }, + + /* correct choice of notation for %g */ + { L"%g", 0.0001, L"0.0001" }, + { L"%g", 0.00001, L"1e-05" }, + { L"%g", 123456, L"123456" }, + { L"%g", 1234567, L"1.23457e+06" }, + { L"%.7g", 1234567, L"1234567" }, + { L"%.7g", 12345678, L"1.234568e+07" }, + + /* pi in double precision, printed to a few extra places */ + { L"%.15f", M_PI, L"3.141592653589793" }, + { L"%.18f", M_PI, L"3.141592653589793116" }, + + /* exact conversion of large integers */ + { L"%.0f", 340282366920938463463374607431768211456.0, + L"340282366920938463463374607431768211456" }, + + { NULL, 0.0, NULL } +}; + +int test_swprintf(void) +{ + int i, j; + int err=0; + wchar_t b[500], *s; + + setlocale(LC_CTYPE, "en_US.UTF-8") || + setlocale(LC_CTYPE, "en_GB.UTF-8") || + setlocale(LC_CTYPE, "en.UTF-8") || + setlocale(LC_CTYPE, "POSIX.UTF-8") || + setlocale(LC_CTYPE, "C.UTF-8") || + setlocale(LC_CTYPE, "UTF-8") || + setlocale(LC_CTYPE, ""); + + TEST(i, strcmp(nl_langinfo(CODESET), "UTF-8"), 0, "no UTF-8 locale; tests might fail"); + + TEST(i, swprintf(0, 0, L"%d", 123456)<0, 1, "%d != %d"); + + TEST(i, swprintf(b, 2, L"%lc", 0xc0), 1, "%d != %d"); + TEST(i, b[0], 0xc0, "wrong character %x != %x"); + TEST(i, swprintf(b, 2, L"%lc", 0x20ac), 1, "%d != %d"); + TEST(i, b[0], 0x20ac, "wrong character %x != %x"); + TEST(i, swprintf(b, 3, L"%s", "\xc3\x80!"), 2, "%d != %d"); + TEST(i, b[0], 0xc0, "wrong character %x != %x"); + TEST(i, swprintf(b, 2, L"%.1s", "\xc3\x80!"), 1, "%d != %d"); + TEST(i, b[0], 0xc0, "wrong character %x != %x"); + + wcscpy(b, L"xxxxxxxx"); + TEST(i, swprintf(b, 4, L"%d", 123456)<0, 1, "%d != %d"); + TEST_S(b, L"123", "incorrect output"); + TEST(i, b[5], 'x', "buffer overrun"); + + for (j=0; int_tests[j].fmt; j++) { + TEST(i, swprintf(b, sizeof b/sizeof *b, int_tests[j].fmt, int_tests[j].i), wcslen(b), "%d != %d"); + TEST_S(b, int_tests[j].expect, "bad integer conversion"); + } + + for (j=0; fp_tests[j].fmt; j++) { + TEST(i, swprintf(b, sizeof b/sizeof *b, fp_tests[j].fmt, fp_tests[j].f), wcslen(b), "%d != %d"); + TEST_S(b, fp_tests[j].expect, "bad floating point conversion"); + } + + return err; +} diff --git a/testsuite.c b/testsuite.c index 3d80b36..bd52966 100644 --- a/testsuite.c +++ b/testsuite.c @@ -20,6 +20,7 @@ int main() RUN_TEST(time); RUN_TEST(sscanf); RUN_TEST(snprintf); + RUN_TEST(swprintf); RUN_TEST(string); RUN_TEST(strtod); RUN_TEST(strtol); -- cgit v1.2.1