Object-getOwnPropertySymbols-01.js

Enable keyboard shortcuts

// Basic getOwnPropertSymbols tests.

var g = newGlobal({newCompartment: true});

var dbg = Debugger();

var gobj = dbg.addDebuggee(g);

function test(code) {

    code = "(" + code + ");";

    var expected = Object.getOwnPropertySymbols(eval(code));

    g.eval("obj = " + code);

    var actual = gobj.getOwnPropertyDescriptor("obj").value.getOwnPropertySymbols();

    assertEq(JSON.stringify(actual.map((x) => x.toString()).sort()),

             JSON.stringify(expected.map((x) => x.toString()).sort()));

test("{}");

test("Array.prototype"); // Symbol.iterator

test("Object.create(null)");

test("(function() {let x = Symbol(); let o = {}; o[x] = 1; return o;})()");

test("(function() {let x = Symbol('foo'); let o = {}; o[x] = 1; return o;})()");

test("(function() {let x = Symbol('foo'); let y = Symbol('bar'); \

                   let o = {}; o[x] = 1; o[y] = 2; return o;})()");

test("(function() {let x = Symbol('foo with spaces'); \

      let o = {}; o[x] = 1; return o;})()");

test("(function() {let x = Symbol('foo'); \

      let o = function(){}; o[x] = 1; return o;})()");

test("(function() {let x = Symbol('foo'); \

      let o = Object.create(null); o[x] = 1; return o;})()");

test("(function() {let x = Symbol('foo'); \

      let o = new Array(); o[x] = 1; return o;})()");

test("(function() {let x = Symbol('foo'); \

      let o = {}; o[x] = 1; delete o[x]; return o;})()");