1/*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include <stdio.h>
17#include <string.h>
18#include "test.h"
19
20/**
21 * @tc.name      : index_0100
22 * @tc.desc      : Test the index method to get the position of the first occurrence of the target character
23 * @tc.level     : Level 0
24 */
25void index_0100(void)
26{
27    char *str = "hello world";
28    char *result = index(str, 'e');
29    if (strcmp(str + 1, result) != 0) {
30        t_error("%s index get result is %s are not  want %s\n", __func__, result, str + 1);
31    }
32}
33
34/**
35 * @tc.name      : index_0200
36 * @tc.desc      : The result returned by the index function when the target character appears multiple times in the
37 * test string
38 * @tc.level     : Level 1
39 */
40void index_0200(void)
41{
42    int add_size = 2;
43    char *str = "hello world";
44    char *result = index(str, 'l');
45    if (strcmp(str + add_size, result) != 0) {
46        t_error("%s index get result is %s are not  want %s\n", __func__, result, str + add_size);
47    }
48}
49
50/**
51 * @tc.name      : index_0300
52 * @tc.desc      : The result returned by the index function when the target character does not appear in the test
53 * string
54 * @tc.level     : Level 1
55 */
56void index_0300(void)
57{
58    char *str = "hello world";
59    char *result = index(str, 'a');
60    if (result) {
61        t_error("%s index get result is %s are not  want ''\n", __func__, result);
62    }
63}
64
65int main(int argc, char *argv[])
66{
67    index_0100();
68    index_0200();
69    index_0300();
70    return t_status;
71}