a9c431c44f
- Some of the lib/libc and lib/thr tests fail - lib/msun/exp_test:exp2_values now passes with clang 3.8.0 The Makefiles in contrib/netbsd-tests were pruned as they have no value Sponsored by: EMC / Isilon Storage Division
97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
/*
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* Based on the OpenBSD test
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* Copyright (c) 2011 Martin Pieuchot <mpi@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/cdefs.h>
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__RCSID("$NetBSD: t_open_memstream.c,v 1.2 2014/10/19 11:17:43 justin Exp $");
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#include <atf-c.h>
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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ATF_TC(test_open_memstream);
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ATF_TC_HEAD(test_open_memstream, tc)
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{
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atf_tc_set_md_var(tc, "descr", "Test open_memstream functionality");
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}
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#define OFFSET 16384
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const char start[] = "start";
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const char hello[] = "hello";
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ATF_TC_BODY(test_open_memstream, tc)
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{
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FILE *fp;
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char *buf = (char *)0xff;
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size_t size = 0;
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off_t off;
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int i;
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fp = open_memstream(&buf, &size);
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ATF_REQUIRE(fp != NULL);
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off = ftello(fp);
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ATF_CHECK(off == 0);
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ATF_CHECK(fflush(fp) == 0);
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ATF_CHECK(size == 0);
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ATF_CHECK(buf != (char *)0xff);
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ATF_CHECK(fseek(fp, -6, SEEK_SET) == -1);
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ATF_CHECK(fseek(fp, OFFSET, SEEK_SET) == 0);
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ATF_CHECK(fprintf(fp, hello) != EOF);
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ATF_CHECK(fflush(fp) != EOF);
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ATF_CHECK(size == OFFSET + sizeof(hello)-1);
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ATF_CHECK(fseek(fp, 0, SEEK_SET) == 0);
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ATF_CHECK(fprintf(fp, start) != EOF);
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ATF_CHECK(fflush(fp) != EOF);
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ATF_CHECK(size == sizeof(start)-1);
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/* Needed for sparse files */
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ATF_CHECK(strncmp(buf, start, sizeof(start)-1) == 0);
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for (i = sizeof(start)-1; i < OFFSET; i++)
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ATF_CHECK(buf[i] == '\0');
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ATF_CHECK(memcmp(buf + OFFSET, hello, sizeof(hello)-1) == 0);
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/* verify that simply seeking past the end doesn't increase the size */
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ATF_CHECK(fseek(fp, 100, SEEK_END) == 0);
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ATF_CHECK(fflush(fp) != EOF);
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ATF_CHECK(size == OFFSET + sizeof(hello)-1);
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ATF_CHECK(fseek(fp, 8, SEEK_SET) == 0);
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ATF_CHECK(ftell(fp) == 8);
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/* Try to seek backward */
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ATF_CHECK(fseek(fp, -1, SEEK_CUR) == 0);
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ATF_CHECK(ftell(fp) == 7);
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ATF_CHECK(fseek(fp, 5, SEEK_CUR) == 0);
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ATF_CHECK(fclose(fp) != EOF);
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ATF_CHECK(size == 12);
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free(buf);
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}
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ATF_TP_ADD_TCS(tp)
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{
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ATF_TP_ADD_TC(tp, test_open_memstream);
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return atf_no_error();
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}
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