test262/test/built-ins/Array/from/from-array.js
Rick Waldron 452c0e5c61
Automated assertion message update: Array * (#3140)
* Automated assertion message update: Array.from

* Automated assertion message update: Array.isArray

* Automated assertion message update: Array length property

* Automated assertion message update: Array.of

* Automated assertion message update: Array

* Automated assertion message update: Array.prototype.at

* Automated assertion message update: Array.prototype.concat

* Automated assertion message update: compareArray -> assert.compareArray
2021-08-10 14:51:54 -07:00

24 lines
933 B
JavaScript

// Copyright 2015 Microsoft Corporation. All rights reserved.
// This code is governed by the license found in the LICENSE file.
/*---
description: Passing a valid array
esid: sec-array.from
---*/
var array = [0, 'foo', , Infinity];
var result = Array.from(array);
assert.sameValue(result.length, 4, 'The value of result.length is expected to be 4');
assert.sameValue(result[0], 0, 'The value of result[0] is expected to be 0');
assert.sameValue(result[1], 'foo', 'The value of result[1] is expected to be "foo"');
assert.sameValue(result[2], undefined, 'The value of result[2] is expected to equal undefined');
assert.sameValue(result[3], Infinity, 'The value of result[3] is expected to equal Infinity');
assert.notSameValue(
result, array,
'The value of result is expected to not equal the value of `array`'
);
assert(result instanceof Array, 'The result of evaluating (result instanceof Array) is expected to be true');