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 <stdarg.h>
19 #include <stdlib.h>
20 #include "test.h"
21 #include "functionalext.h"
22
vsnprintf_test(char * str,size_t n,char * fmt,const char * func_name,...)23 void vsnprintf_test(char *str, size_t n, char *fmt, const char *func_name, ...)
24 {
25 char s[n];
26 va_list ap;
27 va_start(ap, func_name);
28 int result = vsnprintf(s, n, fmt, ap);
29 va_end(ap);
30 if (result < 0) {
31 t_error("%s vsnprintf get result is %d are less 0\n", func_name, result);
32 }
33 if (strcmp(s, str) != 0) {
34 t_error("%s vsnprintf get is '%s' are not '%s'\n", func_name, s, str);
35 }
36 }
37
vsnprintf_test2(char * fmt,const char * func_name,...)38 void vsnprintf_test2(char *fmt, const char *func_name, ...)
39 {
40 char s[2] = "a";
41 va_list ap;
42 va_start(ap, func_name);
43 int result = vsnprintf(s, 1, fmt, ap);
44 va_end(ap);
45 if (result < 0) {
46 t_error("%s vsnprintf get result is %d are less 0\n", func_name, result);
47 }
48 if(s[0] != '\0'){
49 t_error("%s vsnprintf n is 1 but s[0] is not a mull character\n", func_name);;
50 }
51 }
52
vsnprintf_zeron(char * str,char * fmt,const char * func_name,...)53 void vsnprintf_zeron(char *str, char *fmt, const char *func_name, ...)
54 {
55 char s[10];
56 va_list ap;
57 va_start(ap, func_name);
58 int result = vsnprintf(s, 0, fmt, ap);
59 va_end(ap);
60 if (result < 0) {
61 t_error("%s vsnprintf get result is %d are less 0\n", func_name, result);
62 }
63 if (strcmp(s, str) == 0) {
64 t_error("%s vsnprintf get is '%s' but donnot want that\n", func_name, s);
65 }
66 }
67
vsnprintf_zeron_all(char * str,char * fmt,const char * func_name,...)68 void vsnprintf_zeron_all(char *str, char *fmt, const char *func_name, ...)
69 {
70 va_list ap;
71 va_start(ap, func_name);
72 int result = vsnprintf(0, 0, fmt, ap);
73 va_end(ap);
74 EXPECT_EQ(func_name, result, strlen(str));
75 }
76
main(int argc,char * argv[])77 int main(int argc, char *argv[])
78 {
79 /**
80 * @tc.name : vsnprintf_0100
81 * @tc.desc : Call vsnprinf to get formatted output
82 * @tc.level : Level 0
83 */
84 vsnprintf_test("value is use", 13, "value is %s", "vsnprintf_0100", "use");
85 /**
86 * @tc.name : vsnprintf_0200
87 * @tc.desc : The number of digits to be truncated is less than the length of the format string
88 * @tc.level : Level 1
89 */
90 vsnprintf_test("value is ", 10, "value is %s", "vsnprintf_0200", "use");
91 /**
92 * @tc.name : vsnprintf_0300
93 * @tc.desc : The number of bits to be truncated is greater than the format string length
94 * @tc.level : Level 1
95 */
96 vsnprintf_test("value is use", 15, "value is %s", "vsnprintf_0300", "use");
97 /**
98 * @tc.name : vsnprintf_0400
99 * @tc.desc : Truncate bits to 0
100 * @tc.level : Level 2
101 */
102 vsnprintf_zeron("value is use", "value is %s", "vsnprintf_0400", "use");
103 /**
104 * @tc.name : vsnprintf_0500
105 * @tc.desc : truncate buffer, and bits to 0
106 * @tc.level : Level 3
107 */
108 vsnprintf_zeron_all("value is use", "value is %s", "vsnprintf_0500", "use");
109 /**
110 * @tc.name : vsnprintf_0600
111 * @tc.desc : The number of bits to be 1
112 * @tc.level : Level 2
113 */
114 vsnprintf_test("", 1, "value is %s", "vsnprintf_0600", "use");
115 /**
116 * @tc.name : vsnprintf_0700
117 * @tc.desc : This test case aims to validate that when vsnprintf is called with a buffer size of 1,
118 * and the buffer initially contains data, it properly overwrites the buffer to contain only a null character.
119 * @tc.level : Level 2
120 */
121 vsnprintf_test2("value is %s", "vsnprintf_0700", "use");
122
123 return t_status;
124 }
125