diff --git a/test/built-ins/Object/defineProperty/redefine-length-with-various-values-and-configurable-true.js b/test/built-ins/Object/defineProperty/redefine-length-with-various-values-and-configurable-true.js new file mode 100644 index 0000000000..647887a155 --- /dev/null +++ b/test/built-ins/Object/defineProperty/redefine-length-with-various-values-and-configurable-true.js @@ -0,0 +1,38 @@ +// Copyright (c) 2020 Rick Waldron. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-array-exotic-objects-defineownproperty-p-desc +description: > + Redefining "length" to `configurable: true` throws a TypeError exception +info: | + ArraySetLength ( A, Desc ) + + ValidateAndApplyPropertyDescriptor ( O, P, extensible, Desc, current ) +---*/ + +let a = [1]; + +assert.throws(TypeError, () => { + Object.defineProperty(a, "length", { + configurable: true + }); +}); +assert.throws(TypeError, () => { + Object.defineProperty(a, "length", { + value: 1, + configurable: true + }); +}); +assert.throws(TypeError, () => { + Object.defineProperty(a, "length", { + value: 2, + configurable: true + }); +}); +assert.throws(TypeError, () => { + Object.defineProperty(a, "length", { + value: 3, + configurable: true + }); +});