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e9a5a7f918
* [javascriptcore-test262-automation] changes from git@github.com:WebKit/webkit.git at sha 949e26452cfa153a7f4afe593da97e2fe9e1b706 on Tue Jul 03 2018 14:35:15 GMT-0400 (Eastern Daylight Time)
84 lines
2.6 KiB
JavaScript
84 lines
2.6 KiB
JavaScript
function shouldBe(actual, expected) {
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if (actual !== expected)
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throw new Error(`bad value: ${String(actual)}`);
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}
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function shouldThrow(func, errorMessage) {
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var errorThrown = false;
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var error = null;
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try {
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func();
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} catch (e) {
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errorThrown = true;
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error = e;
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}
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if (!errorThrown)
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throw new Error('not thrown');
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if (String(error) !== errorMessage)
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throw new Error(`bad error: ${String(error)}`);
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}
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var s0 = Symbol("Cocoa");
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var s1 = Symbol("Cappuccino");
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shouldBe(s0.description, "Cocoa");
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shouldBe(s0.toString(), "Symbol(Cocoa)");
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shouldBe(s1.description, "Cappuccino");
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shouldBe(s1.toString(), "Symbol(Cappuccino)");
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var o0 = Object(s0);
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var o1 = Object(s1);
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shouldBe(o0.description, "Cocoa");
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shouldBe(o0.toString(), "Symbol(Cocoa)");
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shouldBe(o1.description, "Cappuccino");
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shouldBe(o1.toString(), "Symbol(Cappuccino)");
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var descriptor = Object.getOwnPropertyDescriptor(Symbol.prototype, "description");
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shouldBe(descriptor.enumerable, false);
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shouldBe(descriptor.configurable, true);
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shouldBe(descriptor.set, undefined);
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shouldBe(typeof descriptor.get, "function");
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shouldThrow(() => {
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"use strict";
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s0.description = "Matcha";
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}, `TypeError: Attempted to assign to readonly property.`);
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shouldThrow(() => {
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"use strict";
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o0.description = "Matcha";
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}, `TypeError: Attempted to assign to readonly property.`);
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shouldThrow(() => {
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descriptor.get.call({});
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}, `TypeError: Symbol.prototype.description requires that |this| be a symbol or a symbol object`);
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shouldThrow(() => {
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descriptor.get.call(null);
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}, `TypeError: Symbol.prototype.description requires that |this| be a symbol or a symbol object`);
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shouldThrow(() => {
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descriptor.get.call(undefined);
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}, `TypeError: Symbol.prototype.description requires that |this| be a symbol or a symbol object`);
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shouldThrow(() => {
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descriptor.get.call(42);
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}, `TypeError: Symbol.prototype.description requires that |this| be a symbol or a symbol object`);
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shouldThrow(() => {
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descriptor.get.call("Hello");
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}, `TypeError: Symbol.prototype.description requires that |this| be a symbol or a symbol object`);
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shouldThrow(() => {
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descriptor.get.call(42.195);
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}, `TypeError: Symbol.prototype.description requires that |this| be a symbol or a symbol object`);
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shouldThrow(() => {
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descriptor.get.call(false);
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}, `TypeError: Symbol.prototype.description requires that |this| be a symbol or a symbol object`);
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shouldBe(descriptor.get.call(s0), "Cocoa");
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shouldBe(descriptor.get.call(o0), "Cocoa");
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o0.__proto__ = {};
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shouldBe(descriptor.get.call(o0), "Cocoa");
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