michael@0: // Map surfaces
michael@0: 
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: var desc = Object.getOwnPropertyDescriptor(this, "Map");
michael@0: assertEq(desc.enumerable, false);
michael@0: assertEq(desc.configurable, true);
michael@0: assertEq(desc.writable, true);
michael@0: 
michael@0: assertEq(typeof Map, 'function');
michael@0: assertEq(Object.keys(Map).length, 0);
michael@0: assertEq(Map.length, 0);
michael@0: assertEq(Map.name, "Map");
michael@0: 
michael@0: assertEq(Object.getPrototypeOf(Map.prototype), Object.prototype);
michael@0: assertEq(Object.prototype.toString.call(Map.prototype), "[object Map]");
michael@0: assertEq(Object.prototype.toString.call(new Map), "[object Map]");
michael@0: assertEq(Object.prototype.toString.call(Map()), "[object Map]");
michael@0: assertEq(Object.keys(Map.prototype).join(), "");
michael@0: assertEq(Map.prototype.constructor, Map);
michael@0: 
michael@0: function checkMethod(name, arity) { 
michael@0:     var desc = Object.getOwnPropertyDescriptor(Map.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("get", 1);
michael@0: checkMethod("has", 1);
michael@0: checkMethod("set", 2);
michael@0: checkMethod("delete", 1);
michael@0: checkMethod("keys", 0);
michael@0: checkMethod("values", 0);
michael@0: checkMethod("entries", 0);
michael@0: 
michael@0: var desc = Object.getOwnPropertyDescriptor(Map.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: // Map.prototype[@@iterator] and .entries are the same function object.
michael@0: assertEq(Map.prototype[std_iterator], Map.prototype.entries);