1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/built-ins/RegExp/prototype/compile/pattern-regexp-same.js b/js/src/tests/test262/annexB/built-ins/RegExp/prototype/compile/pattern-regexp-same.js
new file mode 100644
index 0000000000..b239e0e48b
--- /dev/null
+++ b/js/src/tests/test262/annexB/built-ins/RegExp/prototype/compile/pattern-regexp-same.js
@@ -0,0 +1,34 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-regexp.prototype.compile
+es6id: B.2.5.1
+description: RegExp is re-initialized when invoked with the same instance
+info: |
+    [...]
+    3. If Type(pattern) is Object and pattern has a [[RegExpMatcher]] internal
+       slot, then
+       a. If flags is not undefined, throw a TypeError exception.
+       b. Let P be the value of pattern's [[OriginalSource]] internal slot.
+       c. Let F be the value of pattern's [[OriginalFlags]] internal slot.
+    4. Else,
+       [...]
+    5. Return ? RegExpInitialize(O, P, F).
+---*/
+
+var subject = /abc/gim;
+var result;
+subject.lastIndex = 23;
+
+result = subject.compile(subject);
+
+assert.sameValue(result, subject, 'method return value');
+assert.sameValue(
+  subject.toString(),
+  new RegExp('abc', 'gim').toString(),
+  '[[OriginalSource]] internal slot'
+);
+assert.sameValue(subject.lastIndex, 0);
+assert.sameValue(subject.test('aBc'), true, '[[RegExpMatcher]] internal slot');
+
+reportCompare(0, 0);