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Make "index" integer coercion test more precise

This commit is contained in:
Alexey Shvayka 2020-02-08 23:05:44 +02:00 committed by Rick Waldron
parent 53d16acb3b
commit 3f6b961428
1 changed files with 23 additions and 13 deletions
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36
test/built-ins/RegExp/prototype/Symbol.replace/result-coerce-index.js vendored
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@ -2,32 +2,42 @@
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-regexp.prototype-@@replace
description: >
Type coercion of `index` property of result
es6id: 21.2.5.8
Integer coercion of "index" property of the value returned by RegExpExec.
info: |
RegExp.prototype [ @@replace ] ( string, replaceValue )
[...]
14. For each result in results, do
[...]
13. Repeat, while done is false
a. Let result be RegExpExec(rx, S).
[...]
16. Repeat, for each result in results,
[...]
g. Let position be ToInteger(Get(result, "index")).
[...]
e. Let position be ? ToInteger(? Get(result, "index")).
[...]
k. If functionalReplace is true, then
i. Let replacerArgs be « matched ».
ii. Append in list order the elements of captures to the end of the List replacerArgs.
iii. Append position and S to replacerArgs.
[...]
v. Let replValue be ? Call(replaceValue, undefined, replacerArgs).
features: [Symbol.replace]
---*/
var r = /./;
var counter = 0;
var coercibleIndex = {
length: 1,
0: '',
index: {
valueOf: function() {
return 2.9;
}
}
},
},
};
r.exec = function() {
return coercibleIndex;
};
assert.sameValue(r[Symbol.replace]('abcd', ''), 'ab');
var replacer = function(_matched, position) {
return position;
};
assert.sameValue(r[Symbol.replace]('abcd', replacer), 'ab2cd');