Test "length" property descriptor of Function.prototype.bind

test/built-ins/Function/prototype/bind/15.3.4.5-0-2.js

@@ -1,9 +0,0 @@
-// Copyright (c) 2012 Ecma International.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-es5id: 15.3.4.5-0-2
-description: Function.prototype.bind must exist as a function taking 1 parameter
----*/
-
-assert.sameValue(Function.prototype.bind.length, 1, 'Function.prototype.bind.length');

test/built-ins/Function/prototype/bind/length.js

@@ -0,0 +1,29 @@
+// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-function.prototype.bind
+description: >
+  Function.prototype.bind.length is 1.
+info: |
+  Function.prototype.bind ( thisArg, ...args )
+
+  ECMAScript Standard Built-in Objects
+
+  Every built-in function object, including constructors, has a "length" property whose
+  value is an integer. Unless otherwise specified, this value is equal to the largest
+  number of named arguments shown in the subclause headings for the function description.
+  Optional parameters (which are indicated with brackets: [ ]) or rest parameters (which
+  are shown using the form «...name») are not included in the default argument count.
+
+  Unless otherwise specified, the "length" property of a built-in function object has
+  the attributes { [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true }.
+includes: [propertyHelper.js]
+---*/
+
+verifyProperty(Function.prototype.bind, "length", {
+  value: 1,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});