tests/ctype_test.cpp

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