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Diffstat (limited to 'lib/libc/tests/stdio/printbasic_test.c')
| -rw-r--r-- | lib/libc/tests/stdio/printbasic_test.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/lib/libc/tests/stdio/printbasic_test.c b/lib/libc/tests/stdio/printbasic_test.c new file mode 100644 index 000000000000..411dff518795 --- /dev/null +++ b/lib/libc/tests/stdio/printbasic_test.c @@ -0,0 +1,159 @@ +/*- + * Copyright (c) 2009 David Schultz <das@FreeBSD.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Tests for basic and miscellaneous printf() formats. + */ + +#include <err.h> +#include <limits.h> +#include <locale.h> +#include <stdio.h> +#include <stdarg.h> +#include <stddef.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#include <wchar.h> + +#include <atf-c.h> + +#define S_UINT64MAX "18446744073709551615" +#define S_UINT32MAX "4294967295" +#define S_INT64MIN "-9223372036854775808" +#define S_INT32MIN "-2147483648" + +#define S_SIZEMAX (SIZE_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX) +#define S_ULONGMAX (ULONG_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX) +#define S_ULLONGMAX (ULLONG_MAX == UINT64_MAX ? S_UINT64MAX : S_UINT32MAX) + +static void +smash_stack(void) +{ + static uint32_t junk = 0xdeadbeef; + uint32_t buf[512]; + int i; + + for (i = 0; i < sizeof(buf) / sizeof(buf[0]); i++) + buf[i] = junk; +} + +#define testfmt(result, fmt, ...) \ + _testfmt((result), #__VA_ARGS__, fmt, __VA_ARGS__) +static void +_testfmt(const char *result, const char *argstr, const char *fmt,...) +{ +#define BUF 100 + wchar_t ws[BUF], wfmt[BUF], wresult[BUF]; + char s[BUF]; + va_list ap, ap2; + + va_start(ap, fmt); + va_copy(ap2, ap); + smash_stack(); + vsnprintf(s, sizeof(s), fmt, ap); + ATF_CHECK_MSG(strcmp(result, s) == 0, + "printf(\"%s\", %s) ==> [%s], expected [%s]", + fmt, argstr, s, result); + + smash_stack(); + mbstowcs(ws, s, BUF - 1); + mbstowcs(wfmt, fmt, BUF - 1); + mbstowcs(wresult, result, BUF - 1); + vswprintf(ws, sizeof(ws) / sizeof(ws[0]), wfmt, ap2); + ATF_CHECK_MSG(wcscmp(wresult, ws) == 0, + "wprintf(\"%ls\", %s) ==> [%ls], expected [%ls]", + wfmt, argstr, ws, wresult); + + va_end(ap); + va_end(ap2); +} + +ATF_TC_WITHOUT_HEAD(int_within_limits); +ATF_TC_BODY(int_within_limits, tc) +{ + + ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); + + /* The test requires these to be true. */ + ATF_REQUIRE(UINTMAX_MAX == UINT64_MAX); + ATF_REQUIRE(UINT_MAX == UINT32_MAX); + ATF_REQUIRE(USHRT_MAX == 0xffff); + ATF_REQUIRE(UCHAR_MAX == 0xff); + + /* Make sure we handle signed vs. unsigned args correctly. */ + testfmt("-1", "%jd", (intmax_t)-1); + testfmt(S_UINT64MAX, "%ju", UINT64_MAX); + + if (sizeof(ptrdiff_t) != sizeof(uintmax_t)) + atf_tc_expect_fail("the %%t qualifier is broken on 32-bit " + "platforms where there's a mismatch between ptrdiff_t and " + "uintmax_t's type width; bug # 191674"); + + testfmt("-1", "%td", (ptrdiff_t)-1); + testfmt(S_SIZEMAX, "%tu", (size_t)-1); + + testfmt("-1", "%zd", (ssize_t)-1); + testfmt(S_SIZEMAX, "%zu", (ssize_t)-1); + + testfmt("-1", "%ld", (long)-1); + testfmt(S_ULONGMAX, "%lu", ULONG_MAX); + + testfmt("-1", "%lld", (long long)-1); + testfmt(S_ULLONGMAX, "%llu", ULLONG_MAX); + + testfmt("-1", "%d", -1); + testfmt(S_UINT32MAX, "%u", UINT32_MAX); + + testfmt("-1", "%hd", -1); + testfmt("65535", "%hu", USHRT_MAX); + + testfmt("-1", "%hhd", -1); + testfmt("255", "%hhu", UCHAR_MAX); +} + +ATF_TC_WITHOUT_HEAD(int_limits); +ATF_TC_BODY(int_limits, tc) +{ + + ATF_REQUIRE(setlocale(LC_NUMERIC, "C")); + + /* + * Check that printing the largest negative number does not cause + * overflow when it is negated. + */ + testfmt(S_INT32MIN, "%d", INT_MIN); + testfmt(S_INT64MIN, "%jd", INTMAX_MIN); +} + +ATF_TP_ADD_TCS(tp) +{ + + ATF_TP_ADD_TC(tp, int_within_limits); + ATF_TP_ADD_TC(tp, int_limits); + + return (atf_no_error()); +} |