console-is-a-namespace.any.js (1187B)
1 // META: global=window,dedicatedworker,shadowrealm 2 "use strict"; 3 // https://webidl.spec.whatwg.org/#es-namespaces 4 // https://console.spec.whatwg.org/#console-namespace 5 6 test(() => { 7 assert_true(self.hasOwnProperty("console")); 8 }, "console exists on the global object"); 9 10 test(() => { 11 const propDesc = Object.getOwnPropertyDescriptor(self, "console"); 12 assert_equals(propDesc.writable, true, "must be writable"); 13 assert_equals(propDesc.enumerable, false, "must not be enumerable"); 14 assert_equals(propDesc.configurable, true, "must be configurable"); 15 assert_equals(propDesc.value, console, "must have the right value"); 16 }, "console has the right property descriptors"); 17 18 test(() => { 19 assert_false("Console" in self); 20 }, "Console (uppercase, as if it were an interface) must not exist"); 21 22 test(() => { 23 const prototype1 = Object.getPrototypeOf(console); 24 const prototype2 = Object.getPrototypeOf(prototype1); 25 26 assert_equals(Object.getOwnPropertyNames(prototype1).length, 0, "The [[Prototype]] must have no properties"); 27 assert_equals(prototype2, Object.prototype, "The [[Prototype]]'s [[Prototype]] must be %ObjectPrototype%"); 28 }, "The prototype chain must be correct");