JSTests/test262/test/language/statements/class/definition/fn-name-method.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: 12.2.6.9
description: Assignment of function `name` attribute (MethodDefinition)
info: |
    6. If IsAnonymousFunctionDefinition(AssignmentExpression) is true, then
       a. Let hasNameProperty be HasOwnProperty(propValue, "name").
       b. ReturnIfAbrupt(hasNameProperty).
       c. If hasNameProperty is false, perform SetFunctionName(propValue,
          propKey).
includes: [propertyHelper.js]
features: [Symbol]
---*/

var namedSym = Symbol('test262');
var anonSym = Symbol();

class A {
  id() {}
  [anonSym]() {}
  [namedSym]() {}
  static id() {}
  static [anonSym]() {}
  static [namedSym]() {}
}

assert.sameValue(A.prototype.id.name, 'id', 'via IdentifierName');
verifyNotEnumerable(A.prototype.id, 'name');
verifyNotWritable(A.prototype.id, 'name');
verifyConfigurable(A.prototype.id, 'name');

assert.sameValue(A.prototype[anonSym].name, '', 'via anonymous Symbol');
verifyNotEnumerable(A.prototype[anonSym], 'name');
verifyNotWritable(A.prototype[anonSym], 'name');
verifyConfigurable(A.prototype[anonSym], 'name');

assert.sameValue(A.prototype[namedSym].name, '[test262]', 'via Symbol');
verifyNotEnumerable(A.prototype[namedSym], 'name');
verifyNotWritable(A.prototype[namedSym], 'name');
verifyConfigurable(A.prototype[namedSym], 'name');

assert.sameValue(A.id.name, 'id', 'static via IdentifierName');
verifyNotEnumerable(A.id, 'name');
verifyNotWritable(A.id, 'name');
verifyConfigurable(A.id, 'name');

assert.sameValue(A[anonSym].name, '', 'static via anonymous Symbol');
verifyNotEnumerable(A[anonSym], 'name');
verifyNotWritable(A[anonSym], 'name');
verifyConfigurable(A[anonSym], 'name');

assert.sameValue(A[namedSym].name, '[test262]', 'static via Symbol');
verifyNotEnumerable(A[namedSym], 'name');
verifyNotWritable(A[namedSym], 'name');
verifyConfigurable(A[namedSym], 'name');