diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/RegExp/named-groups/lookbehind.js')
-rw-r--r-- | js/src/tests/test262/built-ins/RegExp/named-groups/lookbehind.js | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/named-groups/lookbehind.js b/js/src/tests/test262/built-ins/RegExp/named-groups/lookbehind.js new file mode 100644 index 0000000000..470ff342cd --- /dev/null +++ b/js/src/tests/test262/built-ins/RegExp/named-groups/lookbehind.js @@ -0,0 +1,47 @@ +// Copyright 2018 the V8 project authors. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +description: Named groups can be used in conjunction with lookbehind +esid: prod-GroupSpecifier +features: [regexp-named-groups, regexp-lookbehind] +includes: [compareArray.js] +---*/ + +// Unicode mode +assert.compareArray(["f", "c"], "abcdef".match(/(?<=(?<a>\w){3})f/u)); +assert.sameValue("c", "abcdef".match(/(?<=(?<a>\w){3})f/u).groups.a); +assert.sameValue("b", "abcdef".match(/(?<=(?<a>\w){4})f/u).groups.a); +assert.sameValue("a", "abcdef".match(/(?<=(?<a>\w)+)f/u).groups.a); +assert.sameValue(null, "abcdef".match(/(?<=(?<a>\w){6})f/u)); + +assert.compareArray(["f", ""], "abcdef".match(/((?<=\w{3}))f/u)); +assert.compareArray(["f", ""], "abcdef".match(/(?<a>(?<=\w{3}))f/u)); + +assert.compareArray(["f", undefined], "abcdef".match(/(?<!(?<a>\d){3})f/u)); +assert.sameValue(null, "abcdef".match(/(?<!(?<a>\D){3})f/u)); + +assert.compareArray(["f", undefined], "abcdef".match(/(?<!(?<a>\D){3})f|f/u)); +assert.compareArray(["f", undefined], "abcdef".match(/(?<a>(?<!\D{3}))f|f/u)); + +// Non-Unicode mode +assert.compareArray(["f", "c"], "abcdef".match(/(?<=(?<a>\w){3})f/)); +assert.sameValue("c", "abcdef".match(/(?<=(?<a>\w){3})f/).groups.a); +assert.sameValue("b", "abcdef".match(/(?<=(?<a>\w){4})f/).groups.a); +assert.sameValue("a", "abcdef".match(/(?<=(?<a>\w)+)f/).groups.a); +assert.sameValue(null, "abcdef".match(/(?<=(?<a>\w){6})f/)); + +assert.compareArray(["f", ""], "abcdef".match(/((?<=\w{3}))f/)); +assert.compareArray(["f", ""], "abcdef".match(/(?<a>(?<=\w{3}))f/)); + +assert.compareArray(["f", undefined], "abcdef".match(/(?<!(?<a>\d){3})f/)); +assert.sameValue(null, "abcdef".match(/(?<!(?<a>\D){3})f/)); + +assert.compareArray(["f", undefined], "abcdef".match(/(?<!(?<a>\D){3})f|f/)); +assert.compareArray(["f", undefined], "abcdef".match(/(?<a>(?<!\D{3}))f|f/)); + +// Even within a lookbehind, properties are created in left to right order +assert.compareArray(["fst", "snd"], Object.getOwnPropertyNames( + /(?<=(?<fst>.)|(?<snd>.))/u.exec("abcd").groups)); + +reportCompare(0, 0); |