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
TEST(ctype,isalnum)21 TEST(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
TEST(ctype,isalpha)29 TEST(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
TEST(ctype,isascii)37 TEST(ctype, isascii) {
38 EXPECT_TRUE(isascii('\x7f'));
39 EXPECT_FALSE(isascii('\x80'));
40 }
41
TEST(ctype,isblank)42 TEST(ctype, isblank) {
43 EXPECT_FALSE(isblank('1'));
44 EXPECT_TRUE(isblank(' '));
45 EXPECT_TRUE(isblank('\t'));
46 }
47
TEST(ctype,iscntrl)48 TEST(ctype, iscntrl) {
49 EXPECT_FALSE(iscntrl('1'));
50 EXPECT_TRUE(iscntrl('\b'));
51 }
52
TEST(ctype,isdigit)53 TEST(ctype, isdigit) {
54 EXPECT_TRUE(isdigit('1'));
55 EXPECT_FALSE(isdigit('a'));
56 EXPECT_FALSE(isdigit('x'));
57 }
58
TEST(ctype,isgraph)59 TEST(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
TEST(ctype,islower)67 TEST(ctype, islower) {
68 EXPECT_TRUE(islower('a'));
69 EXPECT_FALSE(islower('A'));
70 EXPECT_FALSE(islower('!'));
71 }
72
TEST(ctype,isprint)73 TEST(ctype, isprint) {
74 EXPECT_TRUE(isprint('a'));
75 EXPECT_TRUE(isprint(' '));
76 EXPECT_FALSE(isprint('\b'));
77 }
78
TEST(ctype,ispunct)79 TEST(ctype, ispunct) {
80 EXPECT_TRUE(ispunct('!'));
81 EXPECT_FALSE(ispunct('a'));
82 EXPECT_FALSE(ispunct(' '));
83 EXPECT_FALSE(ispunct('\b'));
84 }
85
TEST(ctype,isspace)86 TEST(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
TEST(ctype,isupper)97 TEST(ctype, isupper) {
98 EXPECT_TRUE(isupper('A'));
99 EXPECT_FALSE(isupper('a'));
100 EXPECT_FALSE(isupper('!'));
101 }
102
TEST(ctype,isxdigit)103 TEST(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
TEST(ctype,toascii)113 TEST(ctype, toascii) {
114 EXPECT_EQ('a', toascii('a'));
115 EXPECT_EQ('a', toascii(0x80 | 'a'));
116 }
117
TEST(ctype,tolower)118 TEST(ctype, tolower) {
119 EXPECT_EQ('!', tolower('!'));
120 EXPECT_EQ('a', tolower('a'));
121 EXPECT_EQ('a', tolower('A'));
122 }
123
TEST(ctype,_tolower)124 TEST(ctype, _tolower) {
125 // _tolower may mangle characters for which isupper is false.
126 EXPECT_EQ('a', _tolower('A'));
127 }
128
TEST(ctype,toupper)129 TEST(ctype, toupper) {
130 EXPECT_EQ('!', toupper('!'));
131 EXPECT_EQ('A', toupper('a'));
132 EXPECT_EQ('A', toupper('A'));
133 }
134
TEST(ctype,_toupper)135 TEST(ctype, _toupper) {
136 // _toupper may mangle characters for which islower is false.
137 EXPECT_EQ('A', _toupper('a'));
138 }
139