xpcom/tests/TestStringAPI.cpp

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   3  *
   4  * The contents of this file are subject to the Mozilla Public License Version
   5  * 1.1 (the "License"); you may not use this file except in compliance with
   6  * the License. You may obtain a copy of the License at
   7  * http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS" basis,
  10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  11  * for the specific language governing rights and limitations under the
  12  * License.
  13  *
  14  * The Original Code is XPCOM external strings test.
  15  *
  16  * The Initial Developer of the Original Code is
  17  * Mook <mook.moz@gmail.com>.
  18  * Portions created by the Initial Developer are Copyright (C) 2007
  19  * the Initial Developer. All Rights Reserved.
  20  *
  21  * Contributor(s):
  22  *    Prasad Sunkari <prasad@medhas.org>
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either the GNU General Public License Version 2 or later (the "GPL"), or
  26  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the MPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #include <stdio.h>
  39 #include "nsStringAPI.h"
  40
  41 #define CHECK(x) \
  42   _doCheck(x, #x, __LINE__)
  43
  44 int _doCheck(bool cond, const char* msg, int line) {
  45   if (cond) return 0;
  46   fprintf(stderr, "FAIL: line %d: %s\n", line, msg);
  47   return 1;
  48 }
  49
  50 int testEmpty() {
  51   nsString s;
  52   return CHECK(0 == s.Length()) +
  53          CHECK(s.IsEmpty());
  54 }
  55
  56 int testAccess() {
  57   nsString s;
  58   s.Assign(NS_LITERAL_STRING("hello"));
  59   int res = CHECK(5 == s.Length()) +
  60             CHECK(s.EqualsLiteral("hello"));
  61   const PRUnichar *it, *end;
  62   int len = s.BeginReading(&it, &end);
  63   res += CHECK(5 == len);
  64   res += CHECK(PRUnichar('h') == it[0]) +
  65          CHECK(PRUnichar('e') == it[1]) +
  66          CHECK(PRUnichar('l') == it[2]) +
  67          CHECK(PRUnichar('l') == it[3]) +
  68          CHECK(PRUnichar('o') == it[4]) +
  69          CHECK(it + len == end);
  70   res += CHECK(s[0] == s.First());
  71   for (int i = 0; i < len; ++i) {
  72     res += CHECK(s[i] == it[i]);
  73     res += CHECK(s[i] == s.CharAt(i));
  74   }
  75   res += CHECK(it == s.BeginReading());
  76   res += CHECK(end == s.EndReading());
  77   return res;
  78 }
  79
  80 int testWrite() {
  81   nsString s(NS_LITERAL_STRING("xyzz"));
  82   PRUnichar *begin, *end;
  83   int res = CHECK(4 == s.Length());
  84   PRUint32 len = s.BeginWriting(&begin, &end, 5);
  85   res += CHECK(5 == s.Length()) +
  86          CHECK(5 == len) +
  87          CHECK(end == begin + 5) +
  88          CHECK(begin == s.BeginWriting()) +
  89          CHECK(end == s.EndWriting());
  90   begin[4] = PRUnichar('y');
  91   res += CHECK(s.Equals(NS_LITERAL_STRING("xyzzy")));
  92   s.SetLength(4);
  93   res += CHECK(4 == s.Length()) +
  94          CHECK(s.Equals(NS_LITERAL_STRING("xyzz"))) +
  95          CHECK(!s.Equals(NS_LITERAL_STRING("xyzzy"))) +
  96          CHECK(!s.IsEmpty());
  97   s.Truncate();
  98   res += CHECK(0 == s.Length()) +
  99          CHECK(s.IsEmpty());
 100   const PRUnichar sample[] = { 's', 'a', 'm', 'p', 'l', 'e', '\0' };
 101   s.Assign(sample);
 102   res += CHECK(s.EqualsLiteral("sample"));
 103   s.Assign(sample, 4);
 104   res += CHECK(s.EqualsLiteral("samp"));
 105   s.Assign(PRUnichar('q'));
 106   res += CHECK(s.EqualsLiteral("q"));
 107   return res;
 108 }
 109
 110 int testFind() {
 111   nsString str_haystack;
 112   nsString str_needle;
 113   str_needle.AssignLiteral("world");
 114
 115   PRInt32 ret = 0;
 116   ret += CHECK(-1 == str_haystack.Find("world"));
 117   ret += CHECK(-1 == str_haystack.Find(str_needle));
 118
 119   str_haystack.AssignLiteral("hello world hello world hello");
 120   ret += CHECK( 6 == str_haystack.Find("world"));
 121   ret += CHECK( 6 == str_haystack.Find(str_needle));
 122   ret += CHECK(-1 == str_haystack.Find("world", 20, PR_FALSE));
 123   ret += CHECK(-1 == str_haystack.Find(str_needle, 20));
 124   ret += CHECK(18 == str_haystack.Find("world", 12, PR_FALSE));
 125   ret += CHECK(18 == str_haystack.Find(str_needle, 12));
 126
 127   nsCString cstr_haystack;
 128   nsCString cstr_needle;
 129   cstr_needle.AssignLiteral("world");
 130
 131   ret += CHECK(-1 == cstr_haystack.Find("world"));
 132   ret += CHECK(-1 == cstr_haystack.Find(cstr_needle));
 133
 134   cstr_haystack.AssignLiteral("hello world hello world hello");
 135   ret += CHECK( 6 == cstr_haystack.Find("world"));
 136   ret += CHECK( 6 == cstr_haystack.Find(cstr_needle));
 137   ret += CHECK(-1 == cstr_haystack.Find(cstr_needle, 20));
 138   ret += CHECK(18 == cstr_haystack.Find(cstr_needle, 12));
 139   ret += CHECK( 6 == cstr_haystack.Find("world", 5));
 140
 141   return ret;
 142 }
 143
 144 int testVoid() {
 145   nsString s;
 146   int ret = CHECK(!s.IsVoid());
 147   s.SetIsVoid(PR_FALSE);
 148   ret += CHECK(!s.IsVoid());
 149   s.SetIsVoid(PR_TRUE);
 150   ret += CHECK(s.IsVoid());
 151   s.SetIsVoid(PR_FALSE);
 152   ret += CHECK(!s.IsVoid());
 153   s.SetIsVoid(PR_TRUE);
 154   s.AssignLiteral("hello");
 155   ret += CHECK(!s.IsVoid());
 156   return ret;
 157 }
 158
 159 int testRFind() {
 160   PRInt32 ret = 0;
 161
 162   // nsString.RFind
 163   nsString str_haystack;
 164   nsString str_needle;
 165   str_needle.AssignLiteral("world");
 166
 167   ret += CHECK(-1 == str_haystack.RFind(str_needle));
 168   ret += CHECK(-1 == str_haystack.RFind("world"));
 169
 170   str_haystack.AssignLiteral("hello world hElLo woRlD");
 171
 172   ret += CHECK( 6 == str_haystack.RFind(str_needle));
 173   ret += CHECK( 6 == str_haystack.RFind(str_needle, -1));
 174   ret += CHECK( 6 == str_haystack.RFind(str_needle, 17));
 175   ret += CHECK( 6 == str_haystack.RFind("world", PR_FALSE));
 176   ret += CHECK(18 == str_haystack.RFind("world", PR_TRUE));
 177   ret += CHECK( 6 == str_haystack.RFind("world", -1, PR_FALSE));
 178   ret += CHECK(18 == str_haystack.RFind("world", -1, PR_TRUE));
 179   ret += CHECK( 6 == str_haystack.RFind("world", 17, PR_FALSE));
 180   ret += CHECK( 0 == str_haystack.RFind("hello", 0, PR_FALSE));
 181   ret += CHECK(18 == str_haystack.RFind("world", 19, PR_TRUE));
 182   ret += CHECK(18 == str_haystack.RFind("world", 22, PR_TRUE));
 183   ret += CHECK(18 == str_haystack.RFind("world", 23, PR_TRUE));
 184
 185   // nsCString.RFind
 186   nsCString cstr_haystack;
 187   nsCString cstr_needle;
 188   cstr_needle.AssignLiteral("world");
 189
 190   ret += CHECK(-1 == cstr_haystack.RFind(cstr_needle));
 191   ret += CHECK(-1 == cstr_haystack.RFind("world"));
 192
 193   cstr_haystack.AssignLiteral("hello world hElLo woRlD");
 194
 195   ret += CHECK( 6 == cstr_haystack.RFind(cstr_needle));
 196   ret += CHECK( 6 == cstr_haystack.RFind(cstr_needle, -1));
 197   ret += CHECK( 6 == cstr_haystack.RFind(cstr_needle, 17));
 198   ret += CHECK( 6 == cstr_haystack.RFind("world", 5));
 199   ret += CHECK( 0 == cstr_haystack.RFind(nsDependentCString("hello"), 0));
 200
 201   return ret;
 202 }
 203
 204 int testCompressWhitespace() {
 205   PRInt32 ret = 0;
 206
 207   // CompressWhitespace utility function
 208   nsString s;
 209
 210   s.AssignLiteral("     ");
 211   CompressWhitespace(s);
 212   ret += CHECK(s.EqualsLiteral(""));
 213
 214   s.AssignLiteral("  no more  leading spaces");
 215   CompressWhitespace(s);
 216   ret += CHECK(s.EqualsLiteral("no more leading spaces"));
 217
 218   s.AssignLiteral("no    more trailing spaces ");
 219   CompressWhitespace(s);
 220   ret += CHECK(s.EqualsLiteral("no more trailing spaces"));
 221
 222   s.AssignLiteral("   hello one    2         three    45        ");
 223   CompressWhitespace(s);
 224   ret += CHECK(s.EqualsLiteral("hello one 2 three 45"));
 225
 226   return ret;
 227 }
 228
 229 int main() {
 230   int rv = 0;
 231   rv += testEmpty();
 232   rv += testAccess();
 233   rv += testWrite();
 234   rv += testFind();
 235   rv += testVoid();
 236   rv += testRFind();
 237   rv += testCompressWhitespace();
 238   if (0 == rv) {
 239     fprintf(stderr, "PASS: StringAPI tests\n");
 240   }
 241   return rv;
 242 }