tests/mozilla/ecma_2/Statements/while-004.js

   1 /**
   2  *  File Name:          while-004
   3  *  ECMA Section:
   4  *  Description:        while statement
   5  *
   6  *  Author:             christine@netscape.com
   7  *  Date:               11 August 1998
   8  */
   9     var SECTION = "while-004";
  10     var VERSION = "ECMA_2";
  11     var TITLE   = "while statement";
  12     var BUGNUMBER="316725";
  13
  14     startTest();
  15     writeHeaderToLog( SECTION + " "+ TITLE);
  16
  17     var tc = 0;
  18     var testcases = new Array();
  19
  20     DoWhile_1();
  21     DoWhile_2();
  22     DoWhile_3();
  23     DoWhile_4();
  24     DoWhile_5();
  25
  26      test();
  27
  28     /**
  29      *  Break out of a while by calling return.
  30      *
  31      *  Tests:  12.6.2 step 6.
  32      */
  33      function dowhile() {
  34         result = "pass";
  35
  36         while (true) {
  37             return result;
  38             result = "fail: hit code after return statement";
  39             break;
  40         }
  41     }
  42
  43    function DoWhile_1() {
  44         description = "return statement in a while block";
  45
  46         result = dowhile();
  47
  48         testcases[tc++] = new TestCase(
  49             SECTION,
  50             "DoWhile_1" + description,
  51             "pass",
  52             result );
  53     }
  54
  55     /**
  56      *  While with a labeled continue statement.  Verify that statements
  57      *  after the continue statement are not evaluated.
  58      *
  59      *  Tests: 12.6.2 step 8.
  60      *
  61      */
  62     function DoWhile_2() {
  63         var description = "while with a labeled continue statement";
  64         var result1 = "pass";
  65         var result2 = "fail: did not execute code after loop, but inside label";
  66         var i = 0;
  67         var j = 0;
  68
  69         theloop:
  70             while( i++ < 10  ) {
  71                 j++;
  72                 continue theloop;
  73                 result1 = "failed:  hit code after continue statement";
  74             }
  75         result2 = "pass";
  76
  77         testcases[tc++] = new TestCase(
  78             SECTION,
  79             "DoWhile_2:  " +description + " - code inside the loop, before the continue should be executed ("+j+")",
  80             true,
  81             j == 10 );
  82
  83         testcases[tc++] = new TestCase(
  84             SECTION,
  85             "DoWhile_2:  " +description +" - code after labeled continue should not be executed",
  86             "pass",
  87             result1 );
  88
  89         testcases[tc++] = new TestCase(
  90             SECTION,
  91             "DoWhile_2:  " +description +" - code after loop but inside label should be executed",
  92             "pass",
  93             result2 );
  94     }
  95
  96     /**
  97      *  While with a labeled break.
  98      *
  99      */
 100     function DoWhile_3() {
 101         var description = "while with a labeled break statement";
 102         var result1 = "pass";
 103         var result2 = "pass";
 104         var result3 = "fail: did not get to code after label";
 105
 106         woohoo: {
 107             while( true ) {
 108                 break woohoo;
 109                 result1 = "fail: got to code after a break";
 110             }
 111             result2 = "fail: got to code outside of loop but inside label";
 112         }
 113
 114         result3 = "pass";
 115
 116         testcases[tc++] = new TestCase(
 117             SECTION,
 118             "DoWhile_3: " +description +" - verify break out of loop",
 119             "pass",
 120             result1 );
 121
 122
 123         testcases[tc++] = new TestCase(
 124             SECTION,
 125             "DoWhile_3: " +description +" - verify break out of label",
 126             "pass",
 127             result2 );
 128
 129         testcases[tc++] = new TestCase(
 130             SECTION,
 131             "DoWhile_3: " +description + " - verify correct exit from label",
 132             "pass",
 133             result3 );
 134     }
 135
 136
 137     /**
 138      *  Labled while with an unlabeled break
 139      *
 140      */
 141     function DoWhile_4() {
 142         var description = "labeled while with an unlabeled break";
 143         var result1 = "pass";
 144         var result2 = "pass";
 145         var result3 = "fail: did not evaluate statement after label";
 146
 147         woohooboy: {
 148             while( true ) {
 149                 break woohooboy;
 150                 result1 = "fail: got to code after the break";
 151             }
 152             result2 = "fail: broke out of while, but not out of label";
 153         }
 154         result3 = "pass";
 155
 156         testcases[tc++] = new TestCase(
 157             SECTION,
 158             "DoWhile_4: " +description +" - verify break out of while loop",
 159             "pass",
 160             result1 );
 161
 162         testcases[tc++] = new TestCase(
 163             SECTION,
 164             "DoWhile_4: " +description + " - verify break out of label",
 165             "pass",
 166             result2 );
 167
 168         testcases[tc++] = new TestCase(
 169             SECTION,
 170             "DoWhile_4: " +description +" - verify that statements after label are evaluated",
 171             "pass",
 172             result3 );
 173     }
 174
 175     /**
 176      *  in this case, should behave the same way as
 177      *
 178      *
 179      */
 180     function DoWhile_5() {
 181         var description = "while with a labeled continue statement";
 182         var result1 = "pass";
 183         var result2 = "fail: did not execute code after loop, but inside label";
 184         var i = 0;
 185         var j = 0;
 186
 187         theloop: {
 188             j++;
 189             while( i++ < 10  ) {
 190                 continue;
 191                 result1 = "failed:  hit code after continue statement";
 192             }
 193             result2 = "pass";
 194         }
 195
 196         testcases[tc++] = new TestCase(
 197             SECTION,
 198             "DoWhile_5: " +description + " - continue should not execute statements above the loop",
 199             true,
 200             ( j == 1 ) );
 201
 202         testcases[tc++] = new TestCase(
 203             SECTION,
 204             "DoWhile_5: " +description +" - code after labeled continue should not be executed",
 205             "pass",
 206             result1 );
 207
 208         testcases[tc++] = new TestCase(
 209             SECTION,
 210             "DoWhile_5: " +description +" - code after loop but inside label should be executed",
 211             "pass",
 212             result2 );
 213     }
 214