1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <gtest/gtest.h>
18
19#include <ctype.h>
20
21TEST(ctype, isalnum) {
22  EXPECT_TRUE(isalnum('1'));
23  EXPECT_TRUE(isalnum('a'));
24  EXPECT_TRUE(isalnum('A'));
25  EXPECT_FALSE(isalnum('!'));
26  EXPECT_FALSE(isalnum(' '));
27}
28
29TEST(ctype, isalpha) {
30  EXPECT_FALSE(isalpha('1'));
31  EXPECT_TRUE(isalpha('a'));
32  EXPECT_TRUE(isalpha('A'));
33  EXPECT_FALSE(isalpha('!'));
34  EXPECT_FALSE(isalpha(' '));
35}
36
37TEST(ctype, isascii) {
38  EXPECT_TRUE(isascii('\x7f'));
39  EXPECT_FALSE(isascii('\x80'));
40}
41
42TEST(ctype, isblank) {
43  EXPECT_FALSE(isblank('1'));
44  EXPECT_TRUE(isblank(' '));
45  EXPECT_TRUE(isblank('\t'));
46}
47
48TEST(ctype, iscntrl) {
49  EXPECT_FALSE(iscntrl('1'));
50  EXPECT_TRUE(iscntrl('\b'));
51}
52
53TEST(ctype, isdigit) {
54  EXPECT_TRUE(isdigit('1'));
55  EXPECT_FALSE(isdigit('a'));
56  EXPECT_FALSE(isdigit('x'));
57}
58
59TEST(ctype, isgraph) {
60  EXPECT_TRUE(isgraph('a'));
61  EXPECT_TRUE(isgraph('A'));
62  EXPECT_TRUE(isgraph('1'));
63  EXPECT_TRUE(isgraph('!'));
64  EXPECT_FALSE(isgraph(' '));
65}
66
67TEST(ctype, islower) {
68  EXPECT_TRUE(islower('a'));
69  EXPECT_FALSE(islower('A'));
70  EXPECT_FALSE(islower('!'));
71}
72
73TEST(ctype, isprint) {
74  EXPECT_TRUE(isprint('a'));
75  EXPECT_TRUE(isprint(' '));
76  EXPECT_FALSE(isprint('\b'));
77}
78
79TEST(ctype, ispunct) {
80  EXPECT_TRUE(ispunct('!'));
81  EXPECT_FALSE(ispunct('a'));
82  EXPECT_FALSE(ispunct(' '));
83  EXPECT_FALSE(ispunct('\b'));
84}
85
86TEST(ctype, isspace) {
87  EXPECT_TRUE(isspace(' '));
88  EXPECT_TRUE(isspace('\f'));
89  EXPECT_TRUE(isspace('\n'));
90  EXPECT_TRUE(isspace('\r'));
91  EXPECT_TRUE(isspace('\t'));
92  EXPECT_TRUE(isspace('\v'));
93  EXPECT_FALSE(isspace('a'));
94  EXPECT_FALSE(isspace('!'));
95}
96
97TEST(ctype, isupper) {
98  EXPECT_TRUE(isupper('A'));
99  EXPECT_FALSE(isupper('a'));
100  EXPECT_FALSE(isupper('!'));
101}
102
103TEST(ctype, isxdigit) {
104  EXPECT_TRUE(isxdigit('0'));
105  EXPECT_FALSE(isxdigit('x'));
106  EXPECT_TRUE(isxdigit('1'));
107  EXPECT_TRUE(isxdigit('a'));
108  EXPECT_TRUE(isxdigit('A'));
109  EXPECT_FALSE(isxdigit('g'));
110  EXPECT_FALSE(isxdigit(' '));
111}
112
113TEST(ctype, toascii) {
114  EXPECT_EQ('a', toascii('a'));
115  EXPECT_EQ('a', toascii(0x80 | 'a'));
116}
117
118TEST(ctype, tolower) {
119  EXPECT_EQ('!', tolower('!'));
120  EXPECT_EQ('a', tolower('a'));
121  EXPECT_EQ('a', tolower('A'));
122}
123
124TEST(ctype, _tolower) {
125  // _tolower may mangle characters for which isupper is false.
126  EXPECT_EQ('a', _tolower('A'));
127}
128
129TEST(ctype, toupper) {
130  EXPECT_EQ('!', toupper('!'));
131  EXPECT_EQ('A', toupper('a'));
132  EXPECT_EQ('A', toupper('A'));
133}
134
135TEST(ctype, _toupper) {
136  // _toupper may mangle characters for which islower is false.
137  EXPECT_EQ('A', _toupper('a'));
138}
139