1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/lookBehind/captures.js b/js/src/tests/test262/built-ins/RegExp/lookBehind/captures.js
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+++ b/js/src/tests/test262/built-ins/RegExp/lookBehind/captures.js
@@ -0,0 +1,36 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assertion
+description: >
+  Capturing matches
+info: |
+  The production Assertion :: (?<=Disjunction) evaluates as follows:
+    1. Evaluate Disjunction with -1 as its direction argument to obtain a Matcher m.
+    2. Return an internal Matcher closure that takes two arguments, a State x and a Continuation
+        c, and performs the following steps:
+      a. Let d be a Continuation that always returns its State argument as a successful MatchResult.
+      b. Call m(x, d) and let r be its result.
+      c. If r is failure, return failure.
+      d. Let y be r's State.
+      e. Let cap be y's captures List.
+      f. Let xe be x's endIndex.
+      g. Let z be the State (xe, cap).
+      h. Call c(z) and return its result.
+features: [regexp-lookbehind]
+includes: [compareArray.js]
+---*/
+
+var str = "abcdef";
+assert.compareArray(str.match(/(?<=(c))def/), ["def", "c"], "#1");
+assert.compareArray(str.match(/(?<=(\w{2}))def/), ["def", "bc"], "#2");
+assert.compareArray(str.match(/(?<=(\w(\w)))def/), ["def", "bc", "c"], "#3");
+assert.compareArray(str.match(/(?<=(\w){3})def/), ["def", "a"], "#4");
+assert.compareArray(str.match(/(?<=(bc)|(cd))./), ["d", "bc", undefined], "#5");
+assert.compareArray(str.match(/(?<=([ab]{1,2})\D|(abc))\w/), ["c", "a", undefined], "#6");
+assert.compareArray(str.match(/\D(?<=([ab]+))(\w)/), ["ab", "a", "b"], "#7");
+assert.compareArray(str.match(/(?<=b|c)\w/g), ["c", "d"], "#8");
+assert.compareArray(str.match(/(?<=[b-e])\w{2}/g), ["cd", "ef"], "#9");
+
+reportCompare(0, 0);