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function testOverwritingSparseHole()
{
var x = [];
for (var i = 0; i < 50; i++)
x[i] = i;
var hit = false;
Object.defineProperty(x, 40, {set: function() { hit = true; }});
for (var i = 0; i < 50; i++)
x[i] = 10;
assertEq(hit, true);
}
testOverwritingSparseHole();
function testReadingSparseHole()
{
var x = [];
for (var i = 5; i < 50; i++)
x[i] = i;
var hit = false;
Object.defineProperty(x, 40, {get: function() { hit = true; return 5.5; }});
var res = 0;
for (var i = 0; i < 50; i++) {
res += x[i];
if (i == 10)
res = 0;
}
assertEq(res, 1135.5);
assertEq(hit, true);
}
testReadingSparseHole();
function testInSparseHole()
{
var x = [];
for (var i = 5; i < 50; i++)
x[i] = i;
Object.defineProperty(x, 40, {get: function() {}});
var res = 0;
for (var i = 0; i < 50; i++)
res += (i in x) ? 1 : 0;
assertEq(res, 45);
}
testInSparseHole();
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