LayoutTests/js/script-tests/array-storage-splice-holes.js

description("Tests for correct behavior of splice with array storage with holes.");

// Array storage splice holes.
var holeIndex = 7;

var a = new Array(10);
for (var i = 0; i < a.length; ++i) {
    if (i === holeIndex)
        continue;
    a[i] = i;
}

a.shift(); // Converts to array storage mode.

var startIndex = 4;
a.splice(startIndex, 1);

for (var i = 0; i < startIndex; ++i)
    shouldBe("a[" + i + "]", "" + (i + 1));

for (var i = startIndex; i < a.length; ++i) {
    if (i === holeIndex - 2) {
        shouldBe("a.hasOwnProperty('" + i + "')", "false");
        continue;
    }
    shouldBe("a[" + i + "]", "" + (i + 2));
}