diff --git a/test/annexB/built-ins/String/prototype/replace/custom-replacer-emulates-undefined.js b/test/annexB/built-ins/String/prototype/replace/custom-replacer-emulates-undefined.js new file mode 100644 index 0000000000..81001f6667 --- /dev/null +++ b/test/annexB/built-ins/String/prototype/replace/custom-replacer-emulates-undefined.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-string.prototype.replace +description: > + [[IsHTMLDDA]] object as @@replace method gets called. +info: | + String.prototype.replace ( searchValue, replaceValue ) + + [...] + 2. If searchValue is neither undefined nor null, then + a. Let replacer be ? GetMethod(searchValue, @@replace). + b. If replacer is not undefined, then + i. Return ? Call(replacer, searchValue, « O, replaceValue »). +features: [Symbol.replace, IsHTMLDDA] +---*/ + +var searchValue = $262.IsHTMLDDA; +var replacerGets = 0; +Object.defineProperty(searchValue, Symbol.replace, { + get: function() { + replacerGets += 1; + return searchValue; + }, + configurable: true, +}); + +assert.sameValue("".replace(searchValue), null); +assert.sameValue(replacerGets, 1);