tests/lib/libc/string/t_memmem.c

   1 /*      $NetBSD: t_memmem.c,v 1.2 2011/07/07 08:27:36 jruoho Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2005 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Perry E. Metzger of Metzger, Dowdeswell & Co. LLC.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <atf-c.h>
  33
  34 #include <stdio.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37
  38 char p0[] = "";
  39 int lp0 = 0;
  40 char p1[] = "0123";
  41 int lp1 = 4;
  42 char p2[] = "456";
  43 int lp2 = 3;
  44 char p3[] = "789";
  45 int lp3 = 3;
  46 char p4[] = "abc";
  47 int lp4 = 3;
  48 char p5[] = "0";
  49 int lp5 = 1;
  50 char p6[] = "9";
  51 int lp6 = 1;
  52 char p7[] = "654";
  53 int lp7 = 3;
  54
  55 char b0[] = "";
  56 int lb0 = 0;
  57 char b1[] = "0";
  58 int lb1 = 1;
  59 char b2[] = "0123456789";
  60 int lb2 = 10;
  61
  62 #define expect(b)                                                       \
  63         if (!(b)) {                                                     \
  64                 fprintf(stderr, "failed on line %d\n", __LINE__);       \
  65                 atf_tc_fail("Check stderr for test id/line");           \
  66         }
  67
  68 ATF_TC(memmem_basic);
  69 ATF_TC_HEAD(memmem_basic, tc)
  70 {
  71
  72         atf_tc_set_md_var(tc, "descr", "Test memmem results");
  73 }
  74
  75 ATF_TC_BODY(memmem_basic, tc)
  76 {
  77
  78         expect(memmem(b2, lb2, p0, lp0) == b2);
  79         expect(memmem(b0, lb0, p0, lp0) == b0);
  80         expect(memmem(b0, lb0, p1, lp1) == NULL);
  81         expect(memmem(b1, lb1, p1, lp1) == NULL);
  82
  83         expect(memmem(b2, lb2, p1, lp1) == b2);
  84         expect(memmem(b2, lb2, p2, lp2) == (b2 + 4));
  85         expect(memmem(b2, lb2, p3, lp3) == (b2 + 7));
  86
  87         expect(memmem(b2, lb2, p5, lp5) == b2);
  88         expect(memmem(b2, lb2, p6, lp6) == (b2 + 9));
  89
  90         expect(memmem(b2, lb2, p4, lp4) == NULL);
  91         expect(memmem(b2, lb2, p7, lp7) == NULL);
  92 }
  93
  94 ATF_TP_ADD_TCS(tp)
  95 {
  96
  97         ATF_TP_ADD_TC(tp, memmem_basic);
  98
  99         return atf_no_error();
 100 }