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/key-equality-1.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,28 @@
     1.4 +// Different representations of the same number or string are treated as the same Map key.
     1.5 +
     1.6 +var m = new Map;
     1.7 +var test = function test(a, b) {
     1.8 +    m.set(a, 'secret');
     1.9 +    assertEq(m.get(b), 'secret');
    1.10 +    m.set(b, 'password');
    1.11 +    assertEq(m.get(a), 'password');
    1.12 +
    1.13 +    assertEq(a, b);
    1.14 +};
    1.15 +
    1.16 +// Float and integer representations of the same number are the same key.
    1.17 +test(9, Math.sqrt(81));
    1.18 +
    1.19 +// Ordinary strings and ropes are the same key.
    1.20 +var a = Array(1001).join('x');
    1.21 +var b = Array(501).join('x') + Array(501).join('x');
    1.22 +test(a, b);
    1.23 +
    1.24 +// Two structurally different ropes with the same characters are the same key.
    1.25 +a = "";
    1.26 +b = "";
    1.27 +for (var i = 0; i < 10; i++) {
    1.28 +    a = Array(501).join('x') + a;
    1.29 +    b = b + Array(501).join('x');
    1.30 +}
    1.31 +test(a, b);