| function verify_interface(name, instance, attributes) { |
| assert_true(name in self, |
| name + ' should be an defined type'); |
| if (instance) { |
| assert_true(instance instanceof self[name], |
| instance + ' should be an instance of ' + name); |
| Object.keys(attributes || {}).forEach(function(attribute) { |
| var type = attributes[attribute]; |
| assert_true(attribute in instance, |
| attribute + ' should be an attribute of ' + name); |
| assert_equals(typeof instance[attribute], type, |
| attribute + ' should be of type ' + type); |
| }); |
| } |
| } |