michael@0: // Check superficial characteristics of functions and properties (not functionality).
michael@0: 
michael@0: function checkFunction(obj, name, nargs) {
michael@0:     var desc = Object.getOwnPropertyDescriptor(obj, name);
michael@0:     assertEq(desc.configurable, true, name + " should be configurable");
michael@0:     assertEq(desc.writable, true, name + " should be writable");
michael@0:     assertEq(desc.enumerable, false, name + " should be non-enumerable");
michael@0:     assertEq(desc.value, obj[name]);  // well obviously
michael@0:     assertEq(typeof desc.value, 'function', name + " should be a function");
michael@0:     assertEq(desc.value.length, nargs, name + " should have .length === " + nargs);
michael@0: }
michael@0: 
michael@0: checkFunction(this, "Debugger", 1);
michael@0: 
michael@0: assertEq(Debugger.prototype.constructor, Debugger);
michael@0: assertEq(Object.prototype.toString.call(Debugger.prototype), "[object Debugger]");
michael@0: assertEq(Object.getPrototypeOf(Debugger.prototype), Object.prototype);