function test(constructor, constructor2, from=[1, 2, 3, 4, 5], to=[2, 4, 6, 8, 10]) { var modifiedConstructor = new constructor(from); modifiedConstructor.constructor = constructor2; assertDeepEq(modifiedConstructor.map(x => x * 2), new constructor2(to)); var modifiedSpecies = new constructor(from); modifiedSpecies.constructor = { [Symbol.species]: constructor2 }; assertDeepEq(modifiedSpecies.map(x => x * 2), new constructor2(to)); } // same size, same sign test(Int8Array, Uint8Array); test(Int8Array, Uint8ClampedArray); test(Uint8Array, Int8Array); test(Uint8Array, Uint8ClampedArray); test(Uint8ClampedArray, Int8Array); test(Uint8ClampedArray, Uint8Array); test(Int16Array, Uint16Array); test(Uint16Array, Int16Array); test(Int32Array, Uint32Array); test(Uint32Array, Int32Array); // same size, different sign test(Int8Array, Uint8Array, [-1, -2, -3, -4, -5], [0xFE, 0xFC, 0xFA, 0xF8, 0xF6]); test(Int8Array, Uint8ClampedArray, [-1, -2, -3, -4, -5], [0, 0, 0, 0, 0]); test(Uint8Array, Int8Array, [0xFF, 0xFE, 0xFD, 0xFC, 0xFB], [-2, -4, -6, -8, -10]); test(Uint8ClampedArray, Int8Array, [0xFF, 0xFE, 0xFD, 0xFC, 0xFB], [-2, -4, -6, -8, -10]); test(Int16Array, Uint16Array, [-1, -2, -3, -4, -5], [0xFFFE, 0xFFFC, 0xFFFA, 0xFFF8, 0xFFF6]); test(Uint16Array, Int16Array, [0xFFFF, 0xFFFE, 0xFFFD, 0xFFFC, 0xFFFB], [-2, -4, -6, -8, -10]); test(Int32Array, Uint32Array, [-1, -2, -3, -4, -5], [0xFFFFFFFE, 0xFFFFFFFC, 0xFFFFFFFA, 0xFFFFFFF8, 0xFFFFFFF6]); test(Uint32Array, Int32Array, [0xFFFFFFFF, 0xFFFFFFFE, 0xFFFFFFFD, 0xFFFFFFFC, 0xFFFFFFFB], [-2, -4, -6, -8, -10]); // different size test(Uint8Array, Uint16Array); test(Uint16Array, Uint8Array); test(Uint8Array, Uint32Array); test(Uint32Array, Uint8Array); test(Uint16Array, Uint32Array); test(Uint32Array, Uint16Array); test(Float32Array, Float64Array); test(Float64Array, Float32Array); if (typeof reportCompare === "function") reportCompare(true, true);