michael@0: // Set surfaces
michael@0: 
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: var desc = Object.getOwnPropertyDescriptor(this, "Set");
michael@0: assertEq(desc.enumerable, false);
michael@0: assertEq(desc.configurable, true);
michael@0: assertEq(desc.writable, true);
michael@0: 
michael@0: assertEq(typeof Set, 'function');
michael@0: assertEq(Object.keys(Set).length, 0);
michael@0: assertEq(Set.length, 0);
michael@0: assertEq(Set.name, "Set");
michael@0: 
michael@0: assertEq(Object.getPrototypeOf(Set.prototype), Object.prototype);
michael@0: assertEq(Object.prototype.toString.call(Set.prototype), "[object Set]");
michael@0: assertEq(Object.prototype.toString.call(new Set), "[object Set]");
michael@0: assertEq(Object.prototype.toString.call(Set()), "[object Set]");
michael@0: assertEq(Object.keys(Set.prototype).join(), "");
michael@0: assertEq(Set.prototype.constructor, Set);
michael@0: 
michael@0: function checkMethod(name, arity) { 
michael@0:     var desc = Object.getOwnPropertyDescriptor(Set.prototype, name);
michael@0:     assertEq(desc.enumerable, false);
michael@0:     assertEq(desc.configurable, true);
michael@0:     assertEq(desc.writable, true);
michael@0:     assertEq(typeof desc.value, 'function');
michael@0:     assertEq(desc.value.name, name);
michael@0:     assertEq(desc.value.length, arity);
michael@0: }
michael@0: 
michael@0: checkMethod("has", 1);
michael@0: checkMethod("add", 1);
michael@0: checkMethod("delete", 1);
michael@0: checkMethod("values", 0);
michael@0: checkMethod("entries", 0);
michael@0: 
michael@0: var desc = Object.getOwnPropertyDescriptor(Set.prototype, "size");
michael@0: assertEq(desc.enumerable, false);
michael@0: assertEq(desc.configurable, true);
michael@0: assertEq(typeof desc.get, 'function');
michael@0: assertEq(desc.get.length, 0);
michael@0: assertEq(desc.set, undefined);
michael@0: checkMethod("clear", 0);
michael@0: 
michael@0: // Set.prototype.keys, .values, and .iterator are the same function object
michael@0: assertEq(Set.prototype.keys, Set.prototype.values);
michael@0: assertEq(Set.prototype[std_iterator], Set.prototype.values);