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      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 
     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 
     29 TEST(ctype, isalnum_l) {
     30   EXPECT_TRUE(isalnum_l('1', LC_GLOBAL_LOCALE));
     31   EXPECT_TRUE(isalnum_l('a', LC_GLOBAL_LOCALE));
     32   EXPECT_TRUE(isalnum_l('A', LC_GLOBAL_LOCALE));
     33   EXPECT_FALSE(isalnum_l('!', LC_GLOBAL_LOCALE));
     34   EXPECT_FALSE(isalnum_l(' ', LC_GLOBAL_LOCALE));
     35 }
     36 
     37 TEST(ctype, isalpha) {
     38   EXPECT_FALSE(isalpha('1'));
     39   EXPECT_TRUE(isalpha('a'));
     40   EXPECT_TRUE(isalpha('A'));
     41   EXPECT_FALSE(isalpha('!'));
     42   EXPECT_FALSE(isalpha(' '));
     43 }
     44 
     45 TEST(ctype, isalpha_l) {
     46   EXPECT_FALSE(isalpha_l('1', LC_GLOBAL_LOCALE));
     47   EXPECT_TRUE(isalpha_l('a', LC_GLOBAL_LOCALE));
     48   EXPECT_TRUE(isalpha_l('A', LC_GLOBAL_LOCALE));
     49   EXPECT_FALSE(isalpha_l('!', LC_GLOBAL_LOCALE));
     50   EXPECT_FALSE(isalpha_l(' ', LC_GLOBAL_LOCALE));
     51 }
     52 
     53 TEST(ctype, isascii) {
     54   EXPECT_TRUE(isascii('\x7f'));
     55   EXPECT_FALSE(isascii('\x80'));
     56 }
     57 
     58 TEST(ctype, isblank) {
     59   EXPECT_FALSE(isblank('1'));
     60   EXPECT_TRUE(isblank(' '));
     61   EXPECT_TRUE(isblank('\t'));
     62 }
     63 
     64 TEST(ctype, isblank_l) {
     65   EXPECT_FALSE(isblank_l('1', LC_GLOBAL_LOCALE));
     66   EXPECT_TRUE(isblank_l(' ', LC_GLOBAL_LOCALE));
     67   EXPECT_TRUE(isblank_l('\t', LC_GLOBAL_LOCALE));
     68 }
     69 
     70 TEST(ctype, iscntrl) {
     71   EXPECT_FALSE(iscntrl('1'));
     72   EXPECT_TRUE(iscntrl('\b'));
     73 }
     74 
     75 TEST(ctype, iscntrl_l) {
     76   EXPECT_FALSE(iscntrl_l('1', LC_GLOBAL_LOCALE));
     77   EXPECT_TRUE(iscntrl_l('\b', LC_GLOBAL_LOCALE));
     78 }
     79 
     80 TEST(ctype, isdigit) {
     81   EXPECT_TRUE(isdigit('1'));
     82   EXPECT_FALSE(isdigit('a'));
     83   EXPECT_FALSE(isdigit('x'));
     84 }
     85 
     86 TEST(ctype, isdigit_l) {
     87   EXPECT_TRUE(isdigit_l('1', LC_GLOBAL_LOCALE));
     88   EXPECT_FALSE(isdigit_l('a', LC_GLOBAL_LOCALE));
     89   EXPECT_FALSE(isdigit_l('x', LC_GLOBAL_LOCALE));
     90 }
     91 
     92 TEST(ctype, isgraph) {
     93   EXPECT_TRUE(isgraph('a'));
     94   EXPECT_TRUE(isgraph('A'));
     95   EXPECT_TRUE(isgraph('1'));
     96   EXPECT_TRUE(isgraph('!'));
     97   EXPECT_FALSE(isgraph(' '));
     98 }
     99 
    100 TEST(ctype, isgraph_l) {
    101   EXPECT_TRUE(isgraph_l('a', LC_GLOBAL_LOCALE));
    102   EXPECT_TRUE(isgraph_l('A', LC_GLOBAL_LOCALE));
    103   EXPECT_TRUE(isgraph_l('1', LC_GLOBAL_LOCALE));
    104   EXPECT_TRUE(isgraph_l('!', LC_GLOBAL_LOCALE));
    105   EXPECT_FALSE(isgraph_l(' ', LC_GLOBAL_LOCALE));
    106 }
    107 
    108 TEST(ctype, islower) {
    109   EXPECT_TRUE(islower('a'));
    110   EXPECT_FALSE(islower('A'));
    111   EXPECT_FALSE(islower('!'));
    112 }
    113 
    114 TEST(ctype, islower_l) {
    115   EXPECT_TRUE(islower_l('a', LC_GLOBAL_LOCALE));
    116   EXPECT_FALSE(islower_l('A', LC_GLOBAL_LOCALE));
    117   EXPECT_FALSE(islower_l('!', LC_GLOBAL_LOCALE));
    118 }
    119 
    120 TEST(ctype, isprint) {
    121   EXPECT_TRUE(isprint('a'));
    122   EXPECT_TRUE(isprint(' '));
    123   EXPECT_FALSE(isprint('\b'));
    124 }
    125 
    126 TEST(ctype, isprint_l) {
    127   EXPECT_TRUE(isprint_l('a', LC_GLOBAL_LOCALE));
    128   EXPECT_TRUE(isprint_l(' ', LC_GLOBAL_LOCALE));
    129   EXPECT_FALSE(isprint_l('\b', LC_GLOBAL_LOCALE));
    130 }
    131 
    132 TEST(ctype, ispunct) {
    133   EXPECT_TRUE(ispunct('!'));
    134   EXPECT_FALSE(ispunct('a'));
    135   EXPECT_FALSE(ispunct(' '));
    136   EXPECT_FALSE(ispunct('\b'));
    137 }
    138 
    139 TEST(ctype, ispunct_l) {
    140   EXPECT_TRUE(ispunct_l('!', LC_GLOBAL_LOCALE));
    141   EXPECT_FALSE(ispunct_l('a', LC_GLOBAL_LOCALE));
    142   EXPECT_FALSE(ispunct_l(' ', LC_GLOBAL_LOCALE));
    143   EXPECT_FALSE(ispunct_l('\b', LC_GLOBAL_LOCALE));
    144 }
    145 
    146 TEST(ctype, isspace) {
    147   EXPECT_TRUE(isspace(' '));
    148   EXPECT_TRUE(isspace('\f'));
    149   EXPECT_TRUE(isspace('\n'));
    150   EXPECT_TRUE(isspace('\r'));
    151   EXPECT_TRUE(isspace('\t'));
    152   EXPECT_TRUE(isspace('\v'));
    153   EXPECT_FALSE(isspace('a'));
    154   EXPECT_FALSE(isspace('!'));
    155 }
    156 
    157 TEST(ctype, isspace_l) {
    158   EXPECT_TRUE(isspace_l(' ', LC_GLOBAL_LOCALE));
    159   EXPECT_TRUE(isspace_l('\f', LC_GLOBAL_LOCALE));
    160   EXPECT_TRUE(isspace_l('\n', LC_GLOBAL_LOCALE));
    161   EXPECT_TRUE(isspace_l('\r', LC_GLOBAL_LOCALE));
    162   EXPECT_TRUE(isspace_l('\t', LC_GLOBAL_LOCALE));
    163   EXPECT_TRUE(isspace_l('\v', LC_GLOBAL_LOCALE));
    164   EXPECT_FALSE(isspace_l('a', LC_GLOBAL_LOCALE));
    165   EXPECT_FALSE(isspace_l('!', LC_GLOBAL_LOCALE));
    166 }
    167 
    168 TEST(ctype, isupper) {
    169   EXPECT_TRUE(isupper('A'));
    170   EXPECT_FALSE(isupper('a'));
    171   EXPECT_FALSE(isupper('!'));
    172 }
    173 
    174 TEST(ctype, isupper_l) {
    175   EXPECT_TRUE(isupper_l('A', LC_GLOBAL_LOCALE));
    176   EXPECT_FALSE(isupper_l('a', LC_GLOBAL_LOCALE));
    177   EXPECT_FALSE(isupper_l('!', LC_GLOBAL_LOCALE));
    178 }
    179 
    180 TEST(ctype, isxdigit) {
    181   EXPECT_TRUE(isxdigit('0'));
    182   EXPECT_FALSE(isxdigit('x'));
    183   EXPECT_TRUE(isxdigit('1'));
    184   EXPECT_TRUE(isxdigit('a'));
    185   EXPECT_TRUE(isxdigit('A'));
    186   EXPECT_FALSE(isxdigit('g'));
    187   EXPECT_FALSE(isxdigit(' '));
    188 }
    189 
    190 TEST(ctype, isxdigit_l) {
    191   EXPECT_TRUE(isxdigit_l('0', LC_GLOBAL_LOCALE));
    192   EXPECT_FALSE(isxdigit_l('x', LC_GLOBAL_LOCALE));
    193   EXPECT_TRUE(isxdigit_l('1', LC_GLOBAL_LOCALE));
    194   EXPECT_TRUE(isxdigit_l('a', LC_GLOBAL_LOCALE));
    195   EXPECT_TRUE(isxdigit_l('A', LC_GLOBAL_LOCALE));
    196   EXPECT_FALSE(isxdigit_l('g', LC_GLOBAL_LOCALE));
    197   EXPECT_FALSE(isxdigit_l(' ', LC_GLOBAL_LOCALE));
    198 }
    199 
    200 TEST(ctype, toascii) {
    201   EXPECT_EQ('a', toascii('a'));
    202   EXPECT_EQ('a', toascii(0x80 | 'a'));
    203 }
    204 
    205 TEST(ctype, tolower) {
    206   EXPECT_EQ('!', tolower('!'));
    207   EXPECT_EQ('a', tolower('a'));
    208   EXPECT_EQ('a', tolower('A'));
    209 }
    210 
    211 TEST(ctype, tolower_l) {
    212   EXPECT_EQ('!', tolower_l('!', LC_GLOBAL_LOCALE));
    213   EXPECT_EQ('a', tolower_l('a', LC_GLOBAL_LOCALE));
    214   EXPECT_EQ('a', tolower_l('A', LC_GLOBAL_LOCALE));
    215 }
    216 
    217 TEST(ctype, _tolower) {
    218   // _tolower may mangle characters for which isupper is false.
    219   EXPECT_EQ('a', _tolower('A'));
    220 }
    221 
    222 TEST(ctype, toupper) {
    223   EXPECT_EQ('!', toupper('!'));
    224   EXPECT_EQ('A', toupper('a'));
    225   EXPECT_EQ('A', toupper('A'));
    226 }
    227 
    228 TEST(ctype, toupper_l) {
    229   EXPECT_EQ('!', toupper_l('!', LC_GLOBAL_LOCALE));
    230   EXPECT_EQ('A', toupper_l('a', LC_GLOBAL_LOCALE));
    231   EXPECT_EQ('A', toupper_l('A', LC_GLOBAL_LOCALE));
    232 }
    233 
    234 TEST(ctype, _toupper) {
    235   // _toupper may mangle characters for which islower is false.
    236   EXPECT_EQ('A', _toupper('a'));
    237 }
    238