Files
basilisk55/js/src/tests/non262/ArrayBuffer/resizable-transfer.js
T

69 lines
2.4 KiB
JavaScript

// |reftest| skip-if(!ArrayBuffer.prototype.transfer)
var fixed = new ArrayBuffer(4);
assertEq(fixed.byteLength, 4);
assertEq(fixed.maxByteLength, 4);
assertEq(fixed.resizable, false);
assertEq(fixed.detached, false);
assertThrowsInstanceOf(() => fixed.resize(2), TypeError);
assertEq(ArrayBuffer.prototype.transfer.length, 0);
assertEq(ArrayBuffer.prototype.transferToFixedLength.length, 0);
var resizeArgumentConverted = false;
assertThrowsInstanceOf(() => fixed.resize({ valueOf() { resizeArgumentConverted = true; return 1; } }),
TypeError);
assertEq(resizeArgumentConverted, false);
var resizable = new ArrayBuffer(4, { maxByteLength: 8 });
assertEq(resizable.byteLength, 4);
assertEq(resizable.maxByteLength, 8);
assertEq(resizable.resizable, true);
var bytes = new Uint8Array(resizable);
bytes[0] = 11;
bytes[3] = 44;
resizable.resize(6);
assertEq(resizable.byteLength, 6);
assertEq(new Uint8Array(resizable)[0], 11);
assertEq(new Uint8Array(resizable)[3], 44);
assertEq(new Uint8Array(resizable)[4], 0);
assertThrowsInstanceOf(() => resizable.resize(9), RangeError);
var source = new ArrayBuffer(4);
var sourceBytes = new Uint8Array(source);
sourceBytes[0] = 1;
sourceBytes[1] = 2;
var sourceView = new Uint8Array(source);
var moved = source.transfer(6);
assertEq(source.detached, true);
assertEq(source.byteLength, 0);
assertEq(source.maxByteLength, 0);
assertEq(sourceView.length, 0);
assertEq(moved.byteLength, 6);
assertEq(moved.resizable, false);
assertEq(moved.maxByteLength, 6);
assertEq(new Uint8Array(moved)[0], 1);
assertEq(new Uint8Array(moved)[1], 2);
assertEq(new Uint8Array(moved)[4], 0);
var resizableSource = new ArrayBuffer(4, { maxByteLength: 8 });
new Uint8Array(resizableSource)[0] = 7;
var resizableMoved = resizableSource.transfer();
assertEq(resizableSource.detached, true);
assertEq(resizableSource.resizable, true);
assertEq(resizableMoved.byteLength, 4);
assertEq(resizableMoved.maxByteLength, 8);
assertEq(resizableMoved.resizable, true);
assertEq(new Uint8Array(resizableMoved)[0], 7);
var fixedMoved = resizableMoved.transferToFixedLength(10);
assertEq(resizableMoved.detached, true);
assertEq(fixedMoved.byteLength, 10);
assertEq(fixedMoved.maxByteLength, 10);
assertEq(fixedMoved.resizable, false);
assertEq(new Uint8Array(fixedMoved)[0], 7);
assertThrowsInstanceOf(() => new ArrayBuffer(4, { maxByteLength: 3 }), RangeError);
if (typeof reportCompare === "function")
reportCompare(0, 0);