xref: /freebsd/lib/libc/tests/stdlib/heapsort_test.c (revision 624e87b673064ae228b79cde11b82f1ad7502bc3)
1  /*-
2   * Copyright (C) 2004 Maxim Sobolev <sobomax@FreeBSD.org>
3   * All rights reserved.
4   *
5   * Redistribution and use in source and binary forms, with or without
6   * modification, are permitted provided that the following conditions
7   * are met:
8   * 1. Redistributions of source code must retain the above copyright
9   *    notice, this list of conditions and the following disclaimer.
10   * 2. Redistributions in binary form must reproduce the above copyright
11   *    notice, this list of conditions and the following disclaimer in the
12   *    documentation and/or other materials provided with the distribution.
13   *
14   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24   * SUCH DAMAGE.
25   */
26  
27  /*
28   * Test for heapsort() routine.
29   */
30  
31  #include <sys/cdefs.h>
32  __FBSDID("$FreeBSD$");
33  
34  #include <assert.h>
35  #include <stdio.h>
36  #include <stdlib.h>
37  
38  #include "test-sort.h"
39  
40  ATF_TC_WITHOUT_HEAD(heapsort_test);
41  ATF_TC_BODY(heapsort_test, tc)
42  {
43  	int sresvector[IVEC_LEN];
44  	int testvector[IVEC_LEN];
45  	int i, j;
46  
47  	for (j = 2; j < IVEC_LEN; j++) {
48  		/* Populate test vectors */
49  		for (i = 0; i < j; i++)
50  			testvector[i] = sresvector[i] = initvector[i];
51  
52  		/* Sort using heapsort(3) */
53  		heapsort(testvector, j, sizeof(testvector[0]), sorthelp);
54  		/* Sort using reference slow sorting routine */
55  		ssort(sresvector, j);
56  
57  		/* Compare results */
58  		for (i = 0; i < j; i++)
59  			ATF_CHECK_MSG(testvector[i] == sresvector[i],
60  			    "item at index %d didn't match: %d != %d",
61  			    i, testvector[i], sresvector[i]);
62  	}
63  }
64  
65  ATF_TP_ADD_TCS(tp)
66  {
67  
68  	ATF_TP_ADD_TC(tp, heapsort_test);
69  
70  	return (atf_no_error());
71  }
72