512e33ec7c
Add unit tests for %zd, %zu and %zx to verify size_t and ssize_t formatting matches system snprintf(). Signed-off-by: Michael Chang <mchang@suse.com> Reviewed-by: Neal Gompa <ngompa13@gmail.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
89 lines
3.8 KiB
C
89 lines
3.8 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2011 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <grub/test.h>
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#include <grub/misc.h>
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#include <stdint.h>
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#define MSG "printf test failed: %s, %s", real, expected
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#if defined(__GNUC__) && __GNUC__ >= 7
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#pragma GCC diagnostic ignored "-Wformat-truncation="
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#endif
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static void
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printf_test (void)
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{
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char real[512];
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char expected[512];
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char *null = NULL;
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grub_snprintf (real, sizeof (real), "%s", null);
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snprintf (expected, sizeof (expected), "%s", null);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%10s", null);
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snprintf (expected, sizeof (expected), "%10s", null);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%-10s", null);
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snprintf (expected, sizeof (expected), "%-10s", null);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%d%%", 10);
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snprintf (expected, sizeof (expected), "%d%%", 10);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%d %%", 10);
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snprintf (expected, sizeof (expected), "%d %%", 10);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%%");
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snprintf (expected, sizeof (expected), "%%");
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%d %d %d", 1, 2, 3);
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snprintf (expected, sizeof (expected), "%d %d %d", 1, 2, 3);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%3$d %2$d %1$d", 1, 2, 3);
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snprintf (expected, sizeof (expected), "%3$d %2$d %1$d", 1, 2, 3);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%d %lld %d", 1, 2LL, 3);
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snprintf (expected, sizeof (expected), "%d %lld %d", 1, 2LL, 3);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%3$d %2$lld %1$d", 1, 2LL, 3);
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snprintf (expected, sizeof (expected), "%3$d %2$lld %1$d", 1, 2LL, 3);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%%0%dd ", 1);
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snprintf (expected, sizeof (expected), "%%0%dd ", 1);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%zd %zd %zd", (ssize_t) -1, (ssize_t) (SIZE_MAX >> 1), (ssize_t) 42);
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snprintf (expected, sizeof (expected), "%zd %zd %zd", (ssize_t) -1, (ssize_t) (SIZE_MAX >> 1), (ssize_t) 42);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%zu %zu %zu", (size_t) 0, (size_t) SIZE_MAX, (size_t) 42);
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snprintf (expected, sizeof (expected), "%zu %zu %zu", (size_t) 0, (size_t) SIZE_MAX, (size_t) 42);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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grub_snprintf (real, sizeof (real), "%zx %zx %zx", (ssize_t) (SIZE_MAX >> 1), (size_t) SIZE_MAX, (size_t) 0xdeadbeefU);
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snprintf (expected, sizeof (expected), "%zx %zx %zx", (ssize_t) (SIZE_MAX >> 1), (size_t) SIZE_MAX, (size_t) 0xdeadbeefU);
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grub_test_assert (strcmp (real, expected) == 0, MSG);
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}
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GRUB_UNIT_TEST ("printf_unit_test", printf_test);
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