JSTests/test262/test/built-ins/Set/prototype/delete/returns-false-when-delete-is-noop.js

// Copyright (C) 2015 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-set.prototype.delete
description: >
    Set.prototype.delete ( value )

    ...
    6. Return false.

---*/

var s = new Set();

assert.sameValue(s.delete(1), false, "`s.delete(1)` returns `false`");