diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/RegExp/named-groups/groups-object-undefined.js')
-rw-r--r-- | js/src/tests/test262/built-ins/RegExp/named-groups/groups-object-undefined.js | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/named-groups/groups-object-undefined.js b/js/src/tests/test262/built-ins/RegExp/named-groups/groups-object-undefined.js new file mode 100644 index 0000000000..06f5e49454 --- /dev/null +++ b/js/src/tests/test262/built-ins/RegExp/named-groups/groups-object-undefined.js @@ -0,0 +1,35 @@ +// Copyright 2017 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: The groups object is created unconditionally. +includes: [propertyHelper.js] +esid: sec-regexpbuiltinexec +features: [regexp-named-groups] +info: | + Runtime Semantics: RegExpBuiltinExec ( R, S ) + 24. If _R_ contains any |GroupName|, then + a. Let _groups_ be ObjectCreate(*null*). + 25. Else, + a. Let _groups_ be *undefined*. + 26. Perform ! CreateDataProperty(_A_, `"groups"`, _groups_). +---*/ + +const re = /./; +const result = re.exec("a"); +assert.sameValue(Object.getPrototypeOf(result), Array.prototype); +assert(result.hasOwnProperty("groups")); +assert.sameValue("a", result[0]); +assert.sameValue(0, result.index); +assert.sameValue(undefined, result.groups); +verifyProperty(result, "groups", { + writable: true, + enumerable: true, + configurable: true, +}); + +Array.prototype.groups = { a: "b" }; +assert.sameValue("$<a>", "a".replace(re, "$<a>")); +Array.prototype.groups = undefined; + +reportCompare(0, 0); |