tests/stress/set-iterators-next.js

   1 // This test checks the behavior of the iterator.next methods on Set objects
   2
   3 var testArray = [1,2,3,4,5,6]
   4 var testSet = new Set();
   5 for (var [key, value] of testArray.entries()) {
   6     testSet.add(value);
   7 }
   8 var keys = testSet.keys();
   9 var i = 0;
  10 while (true) {
  11     var {done, value: key} = keys.next();
  12     if (done)
  13         break;
  14     if (testArray.indexOf(key) === -1)
  15         throw "Error: bad value: " + key;
  16     i++;
  17 }
  18
  19 if (testSet.size !== i)
  20     throw "Error: bad value: " + i;
  21
  22 var value = keys.next().value;
  23 if (value !== undefined)
  24     throw "Error: bad value: " + value;
  25
  26 var values = testSet.values();
  27 var i = 0;
  28 while (true) {
  29     var {done, value} = values.next();
  30     if (done)
  31         break;
  32     i++;
  33     if (testArray.indexOf(value) === -1)
  34         throw "Error: bad value: " + value;
  35 }
  36
  37 if (testSet.size !== i)
  38     throw "Error: bad value: " + i;
  39
  40 var value = values.next().value;
  41 if (value !== undefined)
  42     throw "Error: bad value: " + value;
  43
  44 var entries = testSet.entries();
  45 var i = 0;
  46 do {
  47     var {done, value: entry} = entries.next();
  48     if (done)
  49         break;
  50     var [key, value] = entry;
  51     if (key !== value)
  52         throw "Error: bad value: " + key + " " + value;
  53     if (!testSet.has(value))
  54         throw "Error: bad value: " + value;
  55     if (!testSet.has(key))
  56         throw "Error: bad value: " + key;
  57     i++;
  58     if (testArray.indexOf(value) === -1)
  59         throw "Error: bad value: " + value + " " + i;
  60 } while (!done);
  61
  62 if (testSet.size !== i)
  63     throw "Error: bad value: " + i;
  64
  65 var value = entries.next().value;
  66 if (value !== undefined)
  67     throw "Error: bad value: " + value;
  68
  69 var entries = testSet.entries();
  70 var i = 0;
  71 do {
  72     var {done, value: entry} = entries.next();
  73     if (done)
  74         break;
  75     var [key, value] = entry;
  76     if (key !== value)
  77         throw "Error: bad value: " + key + " " + value;
  78     if (!testSet.has(key))
  79         throw "Error: bad value: " + value;
  80     i++;
  81     if (i % 4 === 0)
  82         testSet.add(100000 + i);
  83 } while (!done);
  84
  85 if (testSet.size !== i)
  86     throw "Error: bad value: " + i;
  87
  88 var value = entries.next().value;
  89 if (value !== undefined)
  90     throw "Error: bad value: " + value;
  91
  92 function otherKey(key) {
  93     return (key + 1) % testArray.length;
  94 }
  95
  96 var entries = testSet.entries();
  97 var i = 0;
  98 do {
  99     var {done, value: entry} = entries.next();
 100     if (done)
 101         break;
 102     var [key, value] = entry;
 103     if (!testSet.has(key))
 104         throw "Error: bad value: " + value + " " + testSet.get(key);
 105     i++;
 106     if (i % 4 === 0)
 107         testSet.delete(otherKey(key));
 108 } while (!done);
 109
 110 if (testSet.size !== i)
 111     throw "Error: bad value: " + i;
 112
 113 var value = entries.next().value;
 114 if (value !== undefined)
 115     throw "Error: bad value: " + value;