1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/prototype/Symbol.match/builtin-y-coerce-lastindex-err.js b/js/src/tests/test262/built-ins/RegExp/prototype/Symbol.match/builtin-y-coerce-lastindex-err.js
new file mode 100644
index 0000000000..9ef965f7d2
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/prototype/Symbol.match/builtin-y-coerce-lastindex-err.js
@@ -0,0 +1,36 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Behavior when coercion of `lastIndex` attribute throws an error
+es6id: 21.2.5.6
+info: |
+    [...]
+    7. If global is false, then
+       a. Return RegExpExec(rx, S).
+
+    21.2.5.2.1 Runtime Semantics: RegExpExec ( R, S )
+
+    [...]
+    7. Return RegExpBuiltinExec(R, S).
+
+    21.2.5.2.2 Runtime Semantics: RegExpBuiltinExec ( R, S )
+
+    [...]
+    7. If global is false and sticky is false, let lastIndex be 0.
+    8. Else, let lastIndex be ? ToLength(? Get(R, "lastIndex")).
+features: [Symbol.match]
+---*/
+
+var r = /./y;
+r.lastIndex = {
+  valueOf: function() {
+    throw new Test262Error();
+  }
+};
+
+assert.throws(Test262Error, function() {
+  r[Symbol.match]('');
+});
+
+reportCompare(0, 0);