diff --git a/test/built-ins/RegExp/prototype/Symbol.replace/result-coerce-matched-global.js b/test/built-ins/RegExp/prototype/Symbol.replace/result-coerce-matched-global.js new file mode 100644 index 0000000000..44b049c307 --- /dev/null +++ b/test/built-ins/RegExp/prototype/Symbol.replace/result-coerce-matched-global.js @@ -0,0 +1,53 @@ +// Copyright (C) 2020 Alexey Shvayka. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-regexp.prototype-@@replace +description: > + String coercion of "0" property of the value returned by RegExpExec. + (global RegExp) +info: | + RegExp.prototype [ @@replace ] ( string, replaceValue ) + + [...] + 11. Repeat, while done is false + a. Let result be ? RegExpExec(rx, S). + b. If result is null, set done to true. + c. Else, + i. Append result to the end of results. + ii. If global is false, set done to true. + iii. Else, + 1. Let matchStr be ? ToString(? Get(result, "0")). + 2. If matchStr is the empty String, then + a. Let thisIndex be ? ToLength(? Get(rx, "lastIndex")). + b. Let nextIndex be AdvanceStringIndex(S, thisIndex, fullUnicode). + c. Perform ? Set(rx, "lastIndex", nextIndex, true). +features: [Symbol.replace] +---*/ + +var r = /./g; +var coercibleValueWasReturned = false; +var coercibleValue = { + length: 1, + 0: { + toString: function() { + return ''; + }, + valueOf: function() { + throw new Test262Error('This method should not be invoked.'); + }, + }, + index: 0, +}; + +r.exec = function() { + if (coercibleValueWasReturned) { + return null; + } + + coercibleValueWasReturned = true; + return coercibleValue; +}; + +assert.sameValue(r[Symbol.replace]('', 'foo'), 'foo'); +assert.sameValue(r.lastIndex, 1);