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/arrays/ion-pop-denseinitializedlength-less-than-length.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,49 @@
     1.4 +load(libdir + "asserts.js");
     1.5 +
     1.6 +function f(arr)
     1.7 +{
     1.8 +  arr.pop();
     1.9 +}
    1.10 +
    1.11 +var N = 100;
    1.12 +
    1.13 +function test()
    1.14 +{
    1.15 +  // Create an array of arrays, to be iterated over for [].pop-calling.  We
    1.16 +  // can't just loop on pop on a single array with non-writable length because
    1.17 +  // pop throws when called on an array with non-writable length.
    1.18 +  var arrs = [];
    1.19 +  for (var i = 0; i < N; i++)
    1.20 +    arrs.push([0, 1, 2, 3]);
    1.21 +
    1.22 +  // Test Ion-pop where dense initialized length < length.
    1.23 +  var a = [0, 1, 2];
    1.24 +  a.length = 4;
    1.25 +
    1.26 +  arrs.push(a);
    1.27 +
    1.28 +  for (var i = 0, sz = arrs.length; i < sz; i++)
    1.29 +    f(arrs[i]);
    1.30 +
    1.31 +  return arrs;
    1.32 +}
    1.33 +
    1.34 +var arrs = test();
    1.35 +assertEq(arrs.length, N + 1);
    1.36 +for (var i = 0; i < N; i++)
    1.37 +{
    1.38 +  assertEq(arrs[i].length, 3, "unexpected length for arrs[" + i + "]");
    1.39 +  assertEq(arrs[i][0], 0, "bad element for arrs[" + i + "][0]");
    1.40 +  assertEq(arrs[i][1], 1, "bad element for arrs[" + i + "][1]");
    1.41 +  assertEq(arrs[i][2], 2, "bad element for arrs[" + i + "][2]");
    1.42 +  assertEq(3 in arrs[i], false, "shouldn't be a third element");
    1.43 +  assertEq(arrs[i][3], undefined);
    1.44 +}
    1.45 +
    1.46 +var a = arrs[N];
    1.47 +assertEq(a.length, 3, "unexpected length for arrs[" + i + "]");
    1.48 +assertEq(a[0], 0, "bad element for arrs[" + i + "][0]");
    1.49 +assertEq(a[1], 1, "bad element for arrs[" + i + "][1]");
    1.50 +assertEq(a[2], 2, "bad element for arrs[" + i + "][2]");
    1.51 +assertEq(3 in a, false, "shouldn't be a third element");
    1.52 +assertEq(a[3], undefined);