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function testBasicTypedArrays()
{
var ar, aridx, idx;
var a = new Uint8Array(16);
var b = new Uint16Array(16);
var c = new Uint32Array(16);
var d = new Int8Array(16);
var e = new Int16Array(16);
var f = new Int32Array(16);
var g = new Float32Array(16);
var h = new Float64Array(16);
var iarrays = [ a, b, c, d, e, f ];
for (aridx = 0; aridx < iarrays.length; ++aridx) {
ar = iarrays[aridx];
for (idx = 0; idx < ar.length-4; ++idx) {
ar[idx] = 22;
ar[idx+1] = 12.7;
ar[idx+2] = "99";
ar[idx+3] = { k: "thing" };
ar[idx+4] = Infinity;
}
assertEq(ar[ar.length-5], 22);
assertEq(ar[ar.length-4], 12);
assertEq(ar[ar.length-3], 99);
assertEq(ar[ar.length-2], 0);
assertEq(ar[ar.length-1], 0);
}
var farrays = [ g, h ];
for (aridx = 0; aridx < farrays.length; ++aridx) {
ar = farrays[aridx];
for (idx = 0; idx < ar.length-4; ++idx) {
ar[idx] = 22;
ar[idx+1] = 12.25;
ar[idx+2] = "99";
ar[idx+3] = { k: "thing" };
ar[idx+4] = Infinity;
}
assertEq(ar[ar.length-5], 22);
assertEq(ar[ar.length-4], 12.25);
assertEq(ar[ar.length-3], 99);
assertEq(!(ar[ar.length-2] == ar[ar.length-2]), true);
assertEq(ar[ar.length-1], Infinity);
}
}
function testSpecialTypedArrays()
{
var ar, aridx, idx;
ar = new Uint8ClampedArray(16);
for (idx = 0; idx < ar.length-4; ++idx) {
ar[idx] = -200;
ar[idx+1] = 127.5;
ar[idx+2] = 987;
ar[idx+3] = Infinity;
ar[idx+4] = "hello world";
}
assertEq(ar[ar.length-5], 0);
assertEq(ar[ar.length-4], 128);
assertEq(ar[ar.length-3], 255);
assertEq(ar[ar.length-2], 255);
assertEq(ar[ar.length-1], 0);
}
function testTypedArrayOther()
{
var ar = new Int32Array(16);
for (var i = 0; i < ar.length; ++i) {
ar[i] = i;
}
for (var i = 0; i < ar.length; ++i) {
// deliberate out of bounds access
ar[i-2] = ar[i+2];
}
var t = 0;
for (var i = 0; i < ar.length; ++i) {
t += ar[i];
}
assertEq(t, 143);
}
testBasicTypedArrays();
testSpecialTypedArrays();
testTypedArrayOther();