tests/stress/map-constructor-adder.js

   1 // Map constructor with adder change.
   2
   3 var originalAdder = Map.prototype.set;
   4 var counter = 0;
   5
   6 Map.prototype.set = function (key, value) {
   7     counter++;
   8     return originalAdder.call(this, key, value);
   9 };
  10
  11 var values = [
  12     [ 0, 0 ],
  13     [ 1, 1 ],
  14     [ 2, 2 ],
  15     [ 3, 3 ],
  16     [ 4, 4 ],
  17     [ 5, 5 ],
  18     [ 4, 4 ],
  19     [ 3, 3 ],
  20     [ 2, 2 ],
  21     [ 1, 1 ],
  22     [ 0, 0 ],
  23 ];
  24 var map = new Map(values);
  25 if (map.size !== 6)
  26     throw "Error: bad map size " + map.size;
  27 if (counter !== values.length)
  28     throw "Error: bad counter " + counter;
  29
  30 Map.prototype.set = function () {
  31     throw new Error("adder called");
  32 };
  33
  34 var map = new Map();
  35 var map = new Map([]);
  36 var error = null;
  37 try {
  38     var map = new Map([ [0, 0] ]);
  39 } catch (e) {
  40     error = e;
  41 }
  42 if (!error)
  43     throw "Error: error not thrown";
  44 if (String(error) !== "Error: adder called")
  45     throw "Error: bad error " + String(error);
  46