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/WeakMap-clear.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,42 @@
     1.4 +var key = {};
     1.5 +var wm = WeakMap();
     1.6 +
     1.7 +assertEq(wm.has(key), false);
     1.8 +// Clearing an already empty WeakMap
     1.9 +wm.clear();
    1.10 +assertEq(wm.has(key), false);
    1.11 +
    1.12 +// Clearing a WeakMap with a live key
    1.13 +wm.set(key, 42);
    1.14 +assertEq(wm.has(key), true);
    1.15 +wm.clear();
    1.16 +assertEq(wm.has(key), false);
    1.17 +
    1.18 +// Clearing a WeakMap with keys turned to garbage
    1.19 +wm.set(key, {});
    1.20 +for (var i = 0; i < 10; i++)
    1.21 +    wm.set({}, {});
    1.22 +assertEq(wm.has(key), true);
    1.23 +wm.clear();
    1.24 +assertEq(wm.has(key), false);
    1.25 +
    1.26 +// Clearing a WeakMap with keys turned to garbage and after doing a GC
    1.27 +wm.set(key, {});
    1.28 +for (var i = 0; i < 10; i++)
    1.29 +    wm.set({}, {});
    1.30 +assertEq(wm.has(key), true);
    1.31 +gc();
    1.32 +assertEq(wm.has(key), true);
    1.33 +wm.clear();
    1.34 +assertEq(wm.has(key), false);
    1.35 +
    1.36 +// More testing when the key is no longer live
    1.37 +wm.set(key, {});
    1.38 +key = null;
    1.39 +wm.clear();
    1.40 +gc();
    1.41 +var key2 = {};
    1.42 +wm.set(key2, {});
    1.43 +key2 = null;
    1.44 +gc();
    1.45 +wm.clear();