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glibc/stdio-common/tst-vfprintf-mbs-prec.c

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vfprintf: Add test case for multi-byte/wide strings and precision
2017-06-29 15:33:43 +08:00
/* Test for wchar_t/multi-byte conversion and precision in vfprintf.
Update copyright dates with scripts/update-copyrights I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-02 02:54:23 +08:00
Copyright (C) 2017-2022 Free Software Foundation, Inc.
vfprintf: Add test case for multi-byte/wide strings and precision
2017-06-29 15:33:43 +08:00
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
Prefer https to http for gnu.org and fsf.org URLs Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 13:40:42 +08:00
<https://www.gnu.org/licenses/>. */
vfprintf: Add test case for multi-byte/wide strings and precision
2017-06-29 15:33:43 +08:00
#include <locale.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <support/check.h>
#include <support/test-driver.h>
#include <wchar.h>
#define DYNARRAY_STRUCT str
#define DYNARRAY_ELEMENT char
#define DYNARRAY_PREFIX str_
#include <malloc/dynarray-skeleton.c>
#define DYNARRAY_STRUCT wstr
#define DYNARRAY_ELEMENT wchar_t
#define DYNARRAY_PREFIX wstr_
#include <malloc/dynarray-skeleton.c>
#define DYNARRAY_STRUCT len
#define DYNARRAY_ELEMENT size_t
#define DYNARRAY_PREFIX len_
#include <malloc/dynarray-skeleton.c>
/* This should be larger than the internal buffer in vfprintf. The
constant needs to be kept in sync with the format strings in
test_mbs_long and test_wide_long. */
enum { WIDE_STRING_LENGTH = 1000 };
/* Creates two large, random strings used for truncation testing.
After the call, *MBS will be encoded in UTF-8, and *WIDE will
contain the same string in the internal UCS-32 encoding. Both
strings are null-terminated. The array *LENGTH counts the number
of multi-byte characters for each prefix string of *WIDE: The first
N wide characters of *WIDE correspond the first (*LENGTH)[N] bytes
of *MBS. The caller should deallocate all three arrays using
free. */
static void
make_random_string (char **mbs, wchar_t **wide, size_t **length)
{
struct str str;
str_init (&str);
struct wstr wstr;
wstr_init (&wstr);
struct len len;
len_init (&len);
for (int i = 0; i < WIDE_STRING_LENGTH; ++i)
{
len_add (&len, str_size (&str));
/* Cover some multi-byte UTF-8 sequences. Avoid the null
character. */
uint32_t ch = 1 + (rand () % 521);
wstr_add (&wstr, ch);
/* Limited UTF-8 conversion. */
if (ch <= 127)
str_add (&str, ch);
else
{
/* We only implement two-byte sequences. */
uint32_t first = ch >> 6;
TEST_VERIFY (first < 32);
str_add (&str, 0xC0 | first);
str_add (&str, 0x80 | (ch & 0x3f));
}
}
len_add (&len, str_size (&str));
wstr_add (&wstr, L'\0');
str_add (&str, '\0');
*mbs = str_finalize (&str, NULL);
TEST_VERIFY_EXIT (*mbs != NULL);
*wide = wstr_finalize (&wstr, NULL);
TEST_VERIFY_EXIT (*wide != NULL);
*length = len_finalize (&len, NULL);
TEST_VERIFY_EXIT (*length != NULL);
}
/* snprintf tests (multi-byte result). */
static void
test_mbs_result (void)
{
char buf[200];
/* ASCII wide string. */
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%ls", L"xyz") == 3);
TEST_VERIFY (strcmp (buf, "xyz") == 0);
/* Unicode wide string. */
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
/* Varying precisions. */
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%.1ls", L"x\u00DFz") == 1);
TEST_VERIFY (strcmp (buf, "x") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%.2ls", L"x\u00DFz") == 1);
TEST_VERIFY (strcmp (buf, "x") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%.3ls", L"x\u00DFz") == 3);
TEST_VERIFY (strcmp (buf, "x\xC3\x9F") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%.4ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%.5ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
/* Varying precisions with width 2, right-justified. */
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%2.1ls", L"x\u00DFz") == 2);
TEST_VERIFY (strcmp (buf, " x") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%2.2ls", L"x\u00DFz") == 2);
TEST_VERIFY (strcmp (buf, " x") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%2.3ls", L"x\u00DFz") == 3);
TEST_VERIFY (strcmp (buf, "x\xC3\x9F") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%2.4ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%2.5ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
/* Varying precisions with width 2, left-justified. */
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-2.1ls", L"x\u00DFz") == 2);
TEST_VERIFY (strcmp (buf, "x ") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-2.2ls", L"x\u00DFz") == 2);
TEST_VERIFY (strcmp (buf, "x ") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-2.3ls", L"x\u00DFz") == 3);
TEST_VERIFY (strcmp (buf, "x\xC3\x9F") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-2.4ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-2.5ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
/* Varying precisions with width 3, right-justified. */
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%3.1ls", L"x\u00DFz") == 3);
TEST_VERIFY (strcmp (buf, " x") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%3.2ls", L"x\u00DFz") == 3);
TEST_VERIFY (strcmp (buf, " x") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%3.3ls", L"x\u00DFz") == 3);
TEST_VERIFY (strcmp (buf, "x\xC3\x9F") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%3.4ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%3.5ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
/* Varying precisions with width 3, left-justified. */
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-3.1ls", L"x\u00DFz") == 3);
TEST_VERIFY (strcmp (buf, "x ") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-3.2ls", L"x\u00DFz") == 3);
TEST_VERIFY (strcmp (buf, "x ") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-3.3ls", L"x\u00DFz") == 3);
TEST_VERIFY (strcmp (buf, "x\xC3\x9F") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-3.4ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-3.5ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
/* Varying precisions with width 4, right-justified. */
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%4.1ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, " x") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%4.2ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, " x") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%4.3ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, " x\xC3\x9F") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%4.4ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%4.5ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
/* Varying precisions with width 4, left-justified. */
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-4.1ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x ") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-4.2ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x ") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-4.3ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9F ") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-4.4ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
memset (buf, '@', sizeof (buf));
TEST_VERIFY (snprintf (buf, sizeof (buf), "%-4.5ls", L"x\u00DFz") == 4);
TEST_VERIFY (strcmp (buf, "x\xC3\x9Fz") == 0);
}
/* swprintf tests (wide string result). */
static void
test_wide_result (void)
{
enum { size = 20 };
wchar_t buf[20];
/* ASCII wide string. */
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%s", "xyz") == 3);
TEST_VERIFY (wcscmp (buf, L"xyz") == 0);
/* Unicode wide string. */
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz") == 0);
/* Varying precisions. */
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%.1s", "x\xC3\x9Fz") == 1);
TEST_VERIFY (wcscmp (buf, L"x") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%.2s", "x\xC3\x9Fz") == 2);
TEST_VERIFY (wcscmp (buf, L"x\u00DF") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%.3s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%.4s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz") == 0);
/* Varying precisions with width 2, right-justified. */
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%2.1s", "x\xC3\x9Fz") == 2);
TEST_VERIFY (wcscmp (buf, L" x") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%2.2s", "x\xC3\x9Fz") == 2);
TEST_VERIFY (wcscmp (buf, L"x\u00DF") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%2.3s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%2.4s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz") == 0);
/* Varying precisions with width 2, left-justified. */
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-2.1s", "x\xC3\x9Fz") == 2);
TEST_VERIFY (wcscmp (buf, L"x ") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-2.2s", "x\xC3\x9Fz") == 2);
TEST_VERIFY (wcscmp (buf, L"x\u00DF") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-2.3s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-2.4s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz") == 0);
/* Varying precisions with width 3, right-justified. */
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%3.1s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L" x") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%3.2s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L" x\u00DF") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%3.3s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%3.4s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz") == 0);
/* Varying precisions with width 3, left-justified. */
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-3.1s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x ") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-3.2s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DF ") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-3.3s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-3.4s", "x\xC3\x9Fz") == 3);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz") == 0);
/* Varying precisions with width 4, right-justified. */
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%4.1s", "x\xC3\x9Fz") == 4);
TEST_VERIFY (wcscmp (buf, L" x") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%4.2s", "x\xC3\x9Fz") == 4);
TEST_VERIFY (wcscmp (buf, L" x\u00DF") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%4.3s", "x\xC3\x9Fz") == 4);
TEST_VERIFY (wcscmp (buf, L" x\u00DFz") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%4.4s", "x\xC3\x9Fz") == 4);
TEST_VERIFY (wcscmp (buf, L" x\u00DFz") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%4.5s", "x\xC3\x9Fz") == 4);
TEST_VERIFY (wcscmp (buf, L" x\u00DFz") == 0);
/* Varying precisions with width 4, left-justified. */
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-4.1s", "x\xC3\x9Fz") == 4);
TEST_VERIFY (wcscmp (buf, L"x ") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-4.2s", "x\xC3\x9Fz") == 4);
TEST_VERIFY (wcscmp (buf, L"x\u00DF ") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-4.3s", "x\xC3\x9Fz") == 4);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz ") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-4.4s", "x\xC3\x9Fz") == 4);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz ") == 0);
wmemset (buf, '@', size);
TEST_VERIFY (swprintf (buf, size, L"%-4.5s", "x\xC3\x9Fz") == 4);
TEST_VERIFY (wcscmp (buf, L"x\u00DFz ") == 0);
}
/* Test with long strings and multi-byte result. */
static void
test_mbs_long (const char *mbs, const wchar_t *wide, const size_t *length)
{
char buf[4000];
_Static_assert (sizeof (buf) > 3 * WIDE_STRING_LENGTH,
"buffer size consistent with string length");
const char *suffix = "||TERM";
TEST_VERIFY_EXIT (sizeof (buf)
> length[WIDE_STRING_LENGTH] + strlen (suffix));
/* Test formatting of the entire string. */
{
int ret = snprintf (buf, sizeof (buf), "%ls%s", wide, suffix);
TEST_VERIFY (ret == length[WIDE_STRING_LENGTH] + strlen (suffix));
TEST_VERIFY (memcmp (buf, mbs, length[WIDE_STRING_LENGTH]) == 0);
TEST_VERIFY (strcmp (buf + length[WIDE_STRING_LENGTH], suffix) == 0);
/* Left-justified string, printed in full. */
ret = snprintf (buf, sizeof (buf), "%-3500ls%s", wide, suffix);
TEST_VERIFY (ret == 3500 + strlen (suffix));
TEST_VERIFY (memcmp (buf, mbs, length[WIDE_STRING_LENGTH]) == 0);
for (size_t i = length[WIDE_STRING_LENGTH]; i < 3500; ++i)
TEST_VERIFY (buf[i] == ' ');
TEST_VERIFY (strcmp (buf + 3500, suffix) == 0);
/* Right-justified string, printed in full. */
ret = snprintf (buf, sizeof (buf), "%3500ls%s", wide, suffix);
TEST_VERIFY (ret == 3500 + strlen (suffix));
size_t padding = 3500 - length[WIDE_STRING_LENGTH];
for (size_t i = 0; i < padding; ++i)
TEST_VERIFY (buf[i] == ' ');
TEST_VERIFY (memcmp (buf + padding, mbs, length[WIDE_STRING_LENGTH]) == 0);
TEST_VERIFY (strcmp (buf + 3500, suffix) == 0);
}
size_t wide_characters_converted = 0;
for (int mbs_len = 0; mbs_len <= length[WIDE_STRING_LENGTH] + 1;
++mbs_len)
{
if (wide_characters_converted < WIDE_STRING_LENGTH
&& mbs_len >= length[wide_characters_converted + 1])
/* The requested prefix length contains room for another wide
character. */
++wide_characters_converted;
if (test_verbose > 0)
printf ("info: %s: mbs_len=%d wide_chars_converted=%zu length=%zu\n",
__func__, mbs_len, wide_characters_converted,
length[wide_characters_converted]);
TEST_VERIFY (length[wide_characters_converted] <= mbs_len);
TEST_VERIFY (wide_characters_converted == 0
|| length[wide_characters_converted - 1] < mbs_len);
int ret = snprintf (buf, sizeof (buf), "%.*ls%s", mbs_len, wide, suffix);
TEST_VERIFY (ret == length[wide_characters_converted] + strlen (suffix));
TEST_VERIFY (memcmp (buf, mbs, length[wide_characters_converted]) == 0);
TEST_VERIFY (strcmp (buf + length[wide_characters_converted],
suffix) == 0);
/* Left-justified string, printed in full. */
if (test_verbose)
printf ("info: %s: left-justified\n", __func__);
ret = snprintf (buf, sizeof (buf), "%-3500.*ls%s",
mbs_len, wide, suffix);
TEST_VERIFY (ret == 3500 + strlen (suffix));
TEST_VERIFY (memcmp (buf, mbs, length[wide_characters_converted]) == 0);
for (size_t i = length[wide_characters_converted]; i < 3500; ++i)
TEST_VERIFY (buf[i] == ' ');
TEST_VERIFY (strcmp (buf + 3500, suffix) == 0);
/* Right-justified string, printed in full. */
if (test_verbose)
printf ("info: %s: right-justified\n", __func__);
ret = snprintf (buf, sizeof (buf), "%3500.*ls%s", mbs_len, wide, suffix);
TEST_VERIFY (ret == 3500 + strlen (suffix));
size_t padding = 3500 - length[wide_characters_converted];
for (size_t i = 0; i < padding; ++i)
TEST_VERIFY (buf[i] == ' ');
TEST_VERIFY (memcmp (buf + padding, mbs,
length[wide_characters_converted]) == 0);
TEST_VERIFY (strcmp (buf + 3500, suffix) == 0);
}
}
/* Test with long strings and wide string result. */
static void
test_wide_long (const char *mbs, const wchar_t *wide, const size_t *length)
{
wchar_t buf[2000];
_Static_assert (sizeof (buf) > sizeof (wchar_t) * WIDE_STRING_LENGTH,
"buffer size consistent with string length");
const wchar_t *suffix = L"||TERM";
TEST_VERIFY_EXIT (sizeof (buf)
> length[WIDE_STRING_LENGTH] + wcslen (suffix));
/* Test formatting of the entire string. */
{
int ret = swprintf (buf, sizeof (buf), L"%s%ls", mbs, suffix);
TEST_VERIFY (ret == WIDE_STRING_LENGTH + wcslen (suffix));
TEST_VERIFY (wmemcmp (buf, wide, WIDE_STRING_LENGTH) == 0);
TEST_VERIFY (wcscmp (buf + WIDE_STRING_LENGTH, suffix) == 0);
/* Left-justified string, printed in full. */
ret = swprintf (buf, sizeof (buf), L"%-1500s%ls", mbs, suffix);
TEST_VERIFY (ret == 1500 + wcslen (suffix));
TEST_VERIFY (wmemcmp (buf, wide, WIDE_STRING_LENGTH) == 0);
for (size_t i = WIDE_STRING_LENGTH; i < 1500; ++i)
TEST_VERIFY (buf[i] == L' ');
TEST_VERIFY (wcscmp (buf + 1500, suffix) == 0);
/* Right-justified string, printed in full. */
ret = swprintf (buf, sizeof (buf), L"%1500s%ls", mbs, suffix);
TEST_VERIFY (ret == 1500 + wcslen (suffix));
size_t padding = 1500 - WIDE_STRING_LENGTH;
for (size_t i = 0; i < padding; ++i)
TEST_VERIFY (buf[i] == ' ');
TEST_VERIFY (wmemcmp (buf + padding, wide, WIDE_STRING_LENGTH) == 0);
TEST_VERIFY (wcscmp (buf + 1500, suffix) == 0);
}
for (int wide_len = 0; wide_len <= WIDE_STRING_LENGTH + 1; ++wide_len)
{
size_t actual_wide_len;
if (wide_len < WIDE_STRING_LENGTH)
actual_wide_len = wide_len;
else
actual_wide_len = WIDE_STRING_LENGTH;
if (test_verbose > 0)
printf ("info: %s: wide_len=%d actual_wide_len=%zu\n",
__func__, wide_len, actual_wide_len);
int ret = swprintf (buf, sizeof (buf), L"%.*s%ls",
wide_len, mbs, suffix);
TEST_VERIFY (ret == actual_wide_len + wcslen (suffix));
TEST_VERIFY (wmemcmp (buf, wide, actual_wide_len) == 0);
TEST_VERIFY (wcscmp (buf + actual_wide_len, suffix) == 0);
/* Left-justified string, printed in full. */
ret = swprintf (buf, sizeof (buf), L"%-1500.*s%ls",
wide_len, mbs, suffix);
TEST_VERIFY (ret == 1500 + wcslen (suffix));
TEST_VERIFY (wmemcmp (buf, wide, actual_wide_len) == 0);
for (size_t i = actual_wide_len; i < 1500; ++i)
TEST_VERIFY (buf[i] == L' ');
TEST_VERIFY (wcscmp (buf + 1500, suffix) == 0);
/* Right-justified string, printed in full. */
ret = swprintf (buf, sizeof (buf), L"%1500.*s%ls",
wide_len, mbs, suffix);
TEST_VERIFY (ret == 1500 + wcslen (suffix));
size_t padding = 1500 - actual_wide_len;
for (size_t i = 0; i < padding; ++i)
TEST_VERIFY (buf[i] == L' ');
TEST_VERIFY (wmemcmp (buf + padding, wide, actual_wide_len) == 0);
TEST_VERIFY (wcscmp (buf + 1500, suffix) == 0);
}
}
static int
do_test (void)
{
/* This test only covers UTF-8 as a multi-byte character set. A
locale with a multi-byte character set with shift state would be
a relevant test target as well, but glibc currently does not ship
such a locale. */
TEST_VERIFY (setlocale (LC_CTYPE, "de_DE.UTF-8") != NULL);
test_mbs_result ();
test_wide_result ();
char *mbs;
wchar_t *wide;
size_t *length;
make_random_string (&mbs, &wide, &length);
TEST_VERIFY (strlen (mbs) == length[WIDE_STRING_LENGTH]);
if (test_verbose > 0)
printf ("info: long multi-byte string contains %zu characters\n",
length[WIDE_STRING_LENGTH]);
test_mbs_long (mbs, wide, length);
test_wide_long (mbs, wide, length);
free (mbs);
free (wide);
free (length);
return 0;
}
#include <support/test-driver.c>
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