bug1762575-1.js - mozsearch

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// Tests on mapped arguments objects.

function ArraySlice() {

  Object.defineProperty(arguments, 0, {value: 1});

  var result = Array.prototype.slice.call(arguments);

  assertEq(result[0], 1);

ArraySlice(0);

function ArrayShift() {

  Object.defineProperty(arguments, 0, {value: 1});

  var result = Array.prototype.shift.call(arguments);

  assertEq(result, 1);

ArrayShift(0);

function ArrayPop() {

  Object.defineProperty(arguments, 0, {value: 1});

  var result = Array.prototype.pop.call(arguments);

  assertEq(result, 1);

ArrayPop(0);

function ArrayJoin() {

  Object.defineProperty(arguments, 0, {value: 1});

  var result = Array.prototype.join.call(arguments);

  assertEq(result, "1");

ArrayJoin(0);

function ArrayIncludes() {

  Object.defineProperty(arguments, 0, {value: 1});

  var result = Array.prototype.includes.call(arguments, 1);

  assertEq(result, true);

ArrayIncludes(0);

function FunctionApply() {

  Object.defineProperty(arguments, 0, {value: 1});

  var id = x => x;

  var result = id.apply(null, arguments);

  assertEq(result, 1);

FunctionApply(0);