xref: /freebsd/lib/libc/tests/stdlib/mergesort_test.c (revision 559a218c9b257775fb249b67945fe4a05b7a6b9f)
1 *98682851SEnji Cooper /*-
2 *98682851SEnji Cooper  * Copyright (C) 2004 Maxim Sobolev <sobomax@FreeBSD.org>
3 *98682851SEnji Cooper  * All rights reserved.
4 *98682851SEnji Cooper  *
5 *98682851SEnji Cooper  * Redistribution and use in source and binary forms, with or without
6 *98682851SEnji Cooper  * modification, are permitted provided that the following conditions
7 *98682851SEnji Cooper  * are met:
8 *98682851SEnji Cooper  * 1. Redistributions of source code must retain the above copyright
9 *98682851SEnji Cooper  *    notice, this list of conditions and the following disclaimer.
10 *98682851SEnji Cooper  * 2. Redistributions in binary form must reproduce the above copyright
11 *98682851SEnji Cooper  *    notice, this list of conditions and the following disclaimer in the
12 *98682851SEnji Cooper  *    documentation and/or other materials provided with the distribution.
13 *98682851SEnji Cooper  *
14 *98682851SEnji Cooper  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 *98682851SEnji Cooper  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 *98682851SEnji Cooper  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 *98682851SEnji Cooper  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 *98682851SEnji Cooper  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 *98682851SEnji Cooper  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 *98682851SEnji Cooper  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 *98682851SEnji Cooper  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 *98682851SEnji Cooper  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 *98682851SEnji Cooper  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 *98682851SEnji Cooper  * SUCH DAMAGE.
25 *98682851SEnji Cooper  */
26 *98682851SEnji Cooper 
27 *98682851SEnji Cooper /*
28 *98682851SEnji Cooper  * Test for mergesort() routine.
29 *98682851SEnji Cooper  */
30 *98682851SEnji Cooper 
31 *98682851SEnji Cooper #include <assert.h>
32 *98682851SEnji Cooper #include <stdio.h>
33 *98682851SEnji Cooper #include <stdlib.h>
34 *98682851SEnji Cooper 
35 *98682851SEnji Cooper #include "test-sort.h"
36 *98682851SEnji Cooper 
37 *98682851SEnji Cooper ATF_TC_WITHOUT_HEAD(mergesort_test);
ATF_TC_BODY(mergesort_test,tc)38 *98682851SEnji Cooper ATF_TC_BODY(mergesort_test, tc)
39 *98682851SEnji Cooper {
40 *98682851SEnji Cooper 	int sresvector[IVEC_LEN];
41 *98682851SEnji Cooper 	int testvector[IVEC_LEN];
42 *98682851SEnji Cooper 	int i, j;
43 *98682851SEnji Cooper 
44 *98682851SEnji Cooper 	for (j = 2; j < IVEC_LEN; j++) {
45 *98682851SEnji Cooper 		/* Populate test vectors */
46 *98682851SEnji Cooper 		for (i = 0; i < j; i++)
47 *98682851SEnji Cooper 			testvector[i] = sresvector[i] = initvector[i];
48 *98682851SEnji Cooper 
49 *98682851SEnji Cooper 		/* Sort using mergesort(3) */
50 *98682851SEnji Cooper 		mergesort(testvector, j, sizeof(testvector[0]), sorthelp);
51 *98682851SEnji Cooper 		/* Sort using reference slow sorting routine */
52 *98682851SEnji Cooper 		ssort(sresvector, j);
53 *98682851SEnji Cooper 
54 *98682851SEnji Cooper 		/* Compare results */
55 *98682851SEnji Cooper 		for (i = 0; i < j; i++)
56 *98682851SEnji Cooper 			ATF_CHECK_MSG(testvector[i] == sresvector[i],
57 *98682851SEnji Cooper 			    "item at index %d didn't match: %d != %d",
58 *98682851SEnji Cooper 			    i, testvector[i], sresvector[i]);
59 *98682851SEnji Cooper 	}
60 *98682851SEnji Cooper }
61 *98682851SEnji Cooper 
ATF_TP_ADD_TCS(tp)62 *98682851SEnji Cooper ATF_TP_ADD_TCS(tp)
63 *98682851SEnji Cooper {
64 *98682851SEnji Cooper 
65 *98682851SEnji Cooper 	ATF_TP_ADD_TC(tp, mergesort_test);
66 *98682851SEnji Cooper 
67 *98682851SEnji Cooper 	return (atf_no_error());
68 *98682851SEnji Cooper }
69