Sun, 03 Oct 2021 16:30:47 +0200
change cx_linked_list_last() and add a test for it
1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
29 #include "cx/linked_list.h"
30 #include "test_config.h"
31 #include "util_allocator.h"
33 int cmp_int(int const *l, int const *r) {
34 int left = *l, right = *r;
35 return left == right ? 0 : (left < right ? -1 : 1);
36 }
38 void test_linked_list_at(void) {
39 struct node {
40 void *next;
41 void *prev;
42 };
43 const ptrdiff_t loc_prev = offsetof(struct node, prev);
44 const ptrdiff_t loc_next = offsetof(struct node, next);
46 struct node a, b, c, d;
47 a.prev = NULL;
48 a.next = &b;
49 b.prev = &a;
50 b.next = &c;
51 c.prev = &b;
52 c.next = &d;
53 d.prev = &c;
54 d.next = NULL;
56 CU_ASSERT_PTR_EQUAL(cx_linked_list_at(&a, 0, loc_next, 0), &a)
57 CU_ASSERT_PTR_EQUAL(cx_linked_list_at(&a, 0, loc_next, 1), &b)
58 CU_ASSERT_PTR_EQUAL(cx_linked_list_at(&a, 0, loc_next, 2), &c)
59 CU_ASSERT_PTR_EQUAL(cx_linked_list_at(&a, 0, loc_next, 3), &d)
60 CU_ASSERT_PTR_NULL(cx_linked_list_at(&a, 0, loc_next, 4))
62 CU_ASSERT_PTR_EQUAL(cx_linked_list_at(&b, 1, loc_prev, 0), &a)
63 CU_ASSERT_PTR_EQUAL(cx_linked_list_at(&b, 1, loc_next, 1), &b)
64 CU_ASSERT_PTR_EQUAL(cx_linked_list_at(&b, 1, loc_next, 2), &c)
65 CU_ASSERT_PTR_EQUAL(cx_linked_list_at(&b, 1, loc_next, 3), &d)
66 CU_ASSERT_PTR_NULL(cx_linked_list_at(&b, 1, loc_next, 4))
68 CU_ASSERT_PTR_EQUAL(cx_linked_list_at(&d, 3, loc_prev, 0), &a)
69 CU_ASSERT_PTR_EQUAL(cx_linked_list_at(&d, 3, loc_prev, 1), &b)
70 }
72 void test_linked_list_add(void) {
73 struct node {
74 void *prev;
75 void *next;
76 };
78 struct node nodes[4];
80 // test with begin, end / prev, next
81 memset(nodes, 0, 4 * sizeof(struct node));
82 void *begin = NULL;
83 void *end = NULL;
85 ptrdiff_t loc_prev = offsetof(struct node, prev);
86 ptrdiff_t loc_next = offsetof(struct node, next);
88 cx_linked_list_add(&begin, &end, loc_prev, loc_next, &nodes[0]);
89 CU_ASSERT_PTR_EQUAL(begin, &nodes[0])
90 CU_ASSERT_PTR_EQUAL(end, &nodes[0])
91 CU_ASSERT_PTR_EQUAL(nodes[0].prev, NULL)
92 CU_ASSERT_PTR_EQUAL(nodes[0].next, NULL)
94 cx_linked_list_add(&begin, &end, loc_prev, loc_next, &nodes[1]);
95 CU_ASSERT_PTR_EQUAL(begin, &nodes[0])
96 CU_ASSERT_PTR_EQUAL(end, &nodes[1])
97 CU_ASSERT_PTR_EQUAL(nodes[0].next, &nodes[1])
98 CU_ASSERT_PTR_EQUAL(nodes[1].prev, &nodes[0])
100 // test with begin only / prev, next
101 memset(nodes, 0, 4 * sizeof(struct node));
102 begin = NULL;
103 end = NULL;
105 cx_linked_list_add(&begin, NULL, loc_prev, loc_next, &nodes[0]);
106 CU_ASSERT_PTR_EQUAL(begin, &nodes[0])
107 cx_linked_list_add(&begin, NULL, loc_prev, loc_next, &nodes[1]);
108 CU_ASSERT_PTR_EQUAL(begin, &nodes[0])
109 CU_ASSERT_PTR_EQUAL(nodes[0].next, &nodes[1])
110 CU_ASSERT_PTR_EQUAL(nodes[1].prev, &nodes[0])
112 cx_linked_list_add(&begin, NULL, loc_prev, loc_next, &nodes[2]);
113 CU_ASSERT_PTR_EQUAL(nodes[1].next, &nodes[2])
114 CU_ASSERT_PTR_EQUAL(nodes[2].prev, &nodes[1])
116 // test with begin, end / next
117 memset(nodes, 0, 4 * sizeof(struct node));
118 begin = NULL;
119 end = NULL;
121 cx_linked_list_add(&begin, &end, -1, loc_next, &nodes[0]);
122 CU_ASSERT_PTR_EQUAL(begin, &nodes[0])
123 CU_ASSERT_PTR_EQUAL(end, &nodes[0])
124 cx_linked_list_add(&begin, &end, -1, loc_next, &nodes[1]);
125 CU_ASSERT_PTR_EQUAL(end, &nodes[1])
126 CU_ASSERT_PTR_EQUAL(nodes[0].next, &nodes[1])
127 CU_ASSERT_PTR_NULL(nodes[1].prev)
128 }
130 void test_linked_list_last(void) {
131 CU_ASSERT_PTR_NULL(cx_linked_list_last(NULL, -1))
132 CU_ASSERT_PTR_NULL(cx_linked_list_last(NULL, 0))
134 struct node {
135 int data;
136 void *next;
137 };
138 ptrdiff_t loc = offsetof(struct node, next);
140 struct node third = {3, NULL};
141 struct node second = {2, &third};
142 struct node first = {1, &second};
144 CU_ASSERT_PTR_EQUAL(cx_linked_list_last(&first, loc), &third)
145 CU_ASSERT_PTR_EQUAL(cx_linked_list_last(&second, loc), &third)
146 CU_ASSERT_PTR_EQUAL(cx_linked_list_last(&third, loc), &third)
147 }
150 void test_hl_linked_list_create(void) {
151 cxTestingAllocatorReset();
153 CxList list = cxLinkedListCreate(cxTestingAllocator, (CxListComparator) cmp_int, sizeof(int));
155 CU_ASSERT_EQUAL(list->size, 0)
156 CU_ASSERT_EQUAL(list->capacity, (size_t) -1)
157 CU_ASSERT_PTR_EQUAL(list->allocator, cxTestingAllocator)
158 CU_ASSERT_EQUAL(list->itemsize, sizeof(int))
159 CU_ASSERT_PTR_EQUAL(list->cmpfunc, cmp_int)
161 // assume this structure for a linked list
162 struct ll_check {
163 cx_list_s base;
164 void *begin;
165 void *end;
166 };
168 struct ll_check *actual = (struct ll_check *) list;
169 CU_ASSERT_PTR_NULL(actual->begin)
170 CU_ASSERT_PTR_NULL(actual->end)
172 cxLinkedListDestroy(list);
174 CU_ASSERT_TRUE(cxTestingAllocatorVerify())
175 }
177 int main() {
178 CU_pSuite suite = NULL;
180 if (CUE_SUCCESS != CU_initialize_registry()) {
181 return CU_get_error();
182 }
184 suite = CU_add_suite("low level linked list suite", NULL, NULL);
186 cu_add_test(suite, test_linked_list_at);
187 cu_add_test(suite, test_linked_list_add);
188 cu_add_test(suite, test_linked_list_last);
190 suite = CU_add_suite("high level linked list suite", NULL, NULL);
192 cu_add_test(suite, test_hl_linked_list_create);
193 /*
194 cu_add_test(suite, test_hl_linked_list_add);
195 cu_add_test(suite, test_hl_linked_list_last);
196 cu_add_test(suite, test_hl_linked_list_insert);
197 cu_add_test(suite, test_hl_linked_list_remove);
198 cu_add_test(suite, test_hl_linked_list_find);*/
200 CU_basic_set_mode(UCX_CU_BRM);
202 int exitcode;
203 if (CU_basic_run_tests()) {
204 exitcode = CU_get_error();
205 } else {
206 exitcode = CU_get_number_of_failures() == 0 ? 0 : 1;
207 }
208 CU_cleanup_registry();
209 return exitcode;
210 }