1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/built-ins/RegExp/prototype/compile/flags-undefined.js b/js/src/tests/test262/annexB/built-ins/RegExp/prototype/compile/flags-undefined.js
new file mode 100644
index 0000000000..29cb3b3fb2
--- /dev/null
+++ b/js/src/tests/test262/annexB/built-ins/RegExp/prototype/compile/flags-undefined.js
@@ -0,0 +1,54 @@
+// 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: Behavior when flags is undefined
+info: |
+    [...]
+    3. If Type(pattern) is Object and pattern has a [[RegExpMatcher]] internal
+       slot, then
+       [...]
+    4. Else,
+       a. Let P be pattern.
+       b. Let F be flags.
+    5. Return ? RegExpInitialize(O, P, F).
+
+    21.2.3.2.2 Runtime Semantics: RegExpInitialize
+
+    [...]
+    3. If flags is undefined, let F be the empty String.
+    [...]
+---*/
+
+var subject, result;
+
+subject = /abc/ig;
+
+result = subject.compile('def');
+
+assert.sameValue(result, subject, 'method return value (unspecified)');
+assert.sameValue(
+  subject.flags, new RegExp('def').flags, '[[OriginalFlags]] (unspecified)'
+);
+assert.sameValue(
+  subject.test('DEF'), false, '[[RegExpMatcher]] internal slot (unspecified)'
+);
+
+subject = /abc/gi;
+
+result = subject.compile('def', undefined);
+
+assert.sameValue(result, subject, 'method return value (explicit undefined)');
+assert.sameValue(
+  subject.flags,
+  new RegExp('def').flags,
+  '[[OriginalSource]] (explicit undefined)'
+);
+assert.sameValue(
+  subject.test('DEF'),
+  false,
+  '[[RegExpMatcher]] internal slot (explicit undefined)'
+);
+
+reportCompare(0, 0);