The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/jit-test/tests/collections/Map-iterator-add-remove.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,14 @@
     1.4 +// Removing and re-adding entries while an iterator is live causes the iterator to visit them again.
     1.5 +
     1.6 +var map = Map([['a', 1]]);
     1.7 +var n = 5;
     1.8 +for (let [k, v] of map) {
     1.9 +    assertEq(k, 'a');
    1.10 +    assertEq(v, 1);
    1.11 +    if (n === 0)
    1.12 +        break;
    1.13 +    map.delete('a');
    1.14 +    map.set('a', 1);
    1.15 +    n--;
    1.16 +}
    1.17 +assertEq(n, 0);