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const TypedArrayPrototype = Object.getPrototypeOf(Int8Array.prototype);
// %TypedArrayPrototype% has an own "toString" property.
assertEq(TypedArrayPrototype.hasOwnProperty("toString"), true);
// The initial value of %TypedArrayPrototype%.toString is Array.prototype.toString.
assertEq(TypedArrayPrototype.toString, Array.prototype.toString);
// The concrete TypedArray prototypes do not have an own "toString" property.
assertEq(anyTypedArrayConstructors.every(c => !c.hasOwnProperty("toString")), true);
assertDeepEq(Object.getOwnPropertyDescriptor(TypedArrayPrototype, "toString"), {
value: TypedArrayPrototype.toString,
writable: true,
enumerable: false,
configurable: true,
});
for (let constructor of anyTypedArrayConstructors) {
assertEq(new constructor([]).toString(), "");
assertEq(new constructor([1]).toString(), "1");
assertEq(new constructor([1, 2]).toString(), "1,2");
}
const testCases = {
[Int8Array.name]: {
array: [-1, 2, -3, 4, NaN],
expected: "-1,2,-3,4,0",
},
[Int16Array.name]: {
array: [-1, 2, -3, 4, NaN],
expected: "-1,2,-3,4,0",
},
[Int32Array.name]: {
array: [-1, 2, -3, 4, NaN],
expected: "-1,2,-3,4,0",
},
[Uint8Array.name]: {
array: [255, 2, 3, 4, NaN],
expected: "255,2,3,4,0",
},
[Uint16Array.name]: {
array: [-1, 2, 3, 4, NaN],
expected: "65535,2,3,4,0",
},
[Uint32Array.name]: {
array: [-1, 2, 3, 4, NaN],
expected: "4294967295,2,3,4,0",
},
[Uint8ClampedArray.name]: {
array: [255, 256, 2, 3, 4, NaN],
expected: "255,255,2,3,4,0",
},
[Float32Array.name]: {
array: [-0, 0, 0.5, -0.5, NaN, Infinity, -Infinity],
expected: "0,0,0.5,-0.5,NaN,Infinity,-Infinity",
},
[Float64Array.name]: {
array: [-0, 0, 0.5, -0.5, NaN, Infinity, -Infinity],
expected: "0,0,0.5,-0.5,NaN,Infinity,-Infinity",
},
};
for (let constructor of anyTypedArrayConstructors) {
let {array, expected} = testCases[constructor.name];
assertEq(new constructor(array).toString(), expected);
}
if (typeof reportCompare === "function")
reportCompare(true, true);