JSTests/test262/test/language/statements/let/fn-name-fn.js

// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
es6id: 13.3.1.4
description: Assignment of function `name` attribute (FunctionExpression)
info: |
    LexicalBinding : BindingIdentifier Initializer

    [...]
    6. If IsAnonymousFunctionDefinition(Initializer) is true, then
       a. Let hasNameProperty be HasOwnProperty(value, "name").
       b. ReturnIfAbrupt(hasNameProperty).
       c. If hasNameProperty is false, perform SetFunctionName(value,
          bindingId).
includes: [propertyHelper.js]
---*/

let xFn = function x() {};
let fn = function() {};

assert(xFn.name !== 'xFn');

assert.sameValue(fn.name, 'fn');
verifyNotEnumerable(fn, 'name');
verifyNotWritable(fn, 'name');
verifyConfigurable(fn, 'name');