mirror of
https://github.com/tc39/test262.git
synced 2025-05-15 20:30:31 +02:00
3bdc467c51
- fixed a false positive where argument-passed-null.js was returning a TypeError from 22.1.2.1 step 5 - created 2 tests from argument-passed-null to assert this as null and items as null - fixed reference info on Array.from_arity.js - fix tests at Array.from_forwards-length-for-array-likes - static checks on calling-from-valid-1-onlyStrict.js - static checks on calling-from-valid-1-noStrict.js - static checks on calling-from-valid-2.js - removed create-typedarray-from.js, that test belong to es6id 22.2.2.1 - removed mapfn-invalid-typeerror-1.js - false positive from 22.1.2.1 step 5 - moved mapfn-invalid-typeerror-2.js to more spread tests where mapfn is not callable - ...
68 lines
2.0 KiB
JavaScript
68 lines
2.0 KiB
JavaScript
// Copyright 2015 Microsoft Corporation. All rights reserved.
|
|
// This code is governed by the license found in the LICENSE file.
|
|
|
|
/*---
|
|
es6id: 22.1.2.1
|
|
description: Calling from with a valid map function with thisArg
|
|
info: >
|
|
22.1.2.1 Array.from ( items [ , mapfn [ , thisArg ] ] )
|
|
|
|
...
|
|
10. Let len be ToLength(Get(arrayLike, "length")).
|
|
11. ReturnIfAbrupt(len).
|
|
12. If IsConstructor(C) is true, then
|
|
a. Let A be Construct(C, «len»).
|
|
13. Else,
|
|
b. Let A be ArrayCreate(len).
|
|
14. ReturnIfAbrupt(A).
|
|
15. Let k be 0.
|
|
16. Repeat, while k < len
|
|
a. Let Pk be ToString(k).
|
|
b. Let kValue be Get(arrayLike, Pk).
|
|
c. ReturnIfAbrupt(kValue).
|
|
d. If mapping is true, then
|
|
i. Let mappedValue be Call(mapfn, T, «kValue, k»).
|
|
...
|
|
---*/
|
|
|
|
var list = {
|
|
'0': 41,
|
|
'1': 42,
|
|
'2': 43,
|
|
length: 3
|
|
};
|
|
var calls = [];
|
|
var thisArg = {};
|
|
|
|
function mapFn (value) {
|
|
calls.push({
|
|
args: arguments,
|
|
thisArg: this
|
|
});
|
|
return value * 2;
|
|
}
|
|
|
|
var result = Array.from(list, mapFn, thisArg);
|
|
|
|
assert.sameValue(result.length, 3, 'result.length');
|
|
assert.sameValue(result[0], 82, 'result[0]');
|
|
assert.sameValue(result[1], 84, 'result[1]');
|
|
assert.sameValue(result[2], 86, 'result[2]');
|
|
|
|
assert.sameValue(calls.length, 3, 'calls.length');
|
|
|
|
assert.sameValue(calls[0].args.length, 2, 'calls[0].args.length');
|
|
assert.sameValue(calls[0].args[0], 41, 'calls[0].args[0]');
|
|
assert.sameValue(calls[0].args[1], 0, 'calls[0].args[1]');
|
|
assert.sameValue(calls[0].thisArg, thisArg, 'calls[0].thisArg');
|
|
|
|
assert.sameValue(calls[1].args.length, 2, 'calls[1].args.length');
|
|
assert.sameValue(calls[1].args[0], 42, 'calls[1].args[0]');
|
|
assert.sameValue(calls[1].args[1], 1, 'calls[1].args[1]');
|
|
assert.sameValue(calls[1].thisArg, thisArg, 'calls[1].thisArg');
|
|
|
|
assert.sameValue(calls[2].args.length, 2, 'calls[2].args.length');
|
|
assert.sameValue(calls[2].args[0], 43, 'calls[2].args[0]');
|
|
assert.sameValue(calls[2].args[1], 2, 'calls[2].args[1]');
|
|
assert.sameValue(calls[2].thisArg, thisArg, 'calls[2].thisArg');
|