1 files changed, 54 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/prototype/Symbol.search/set-lastindex-init-err.js b/js/src/tests/test262/built-ins/RegExp/prototype/Symbol.search/set-lastindex-init-err.js
new file mode 100644
index 0000000000..9df6ae6fc3
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/prototype/Symbol.search/set-lastindex-init-err.js
@@ -0,0 +1,54 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es6id: 21.2.5.9
+description: >
+    Behavior when error thrown while initially setting `lastIndex` property
+info: |
+    [...]
+    7. Let status be Set(rx, "lastIndex", 0, true).
+    8. ReturnIfAbrupt(status).
+features: [Symbol.search]
+---*/
+
+var callCount;
+var poisonedLastIndex = {
+  get lastIndex() {
+    callCount += 1;
+  },
+  set lastIndex(_) {
+    throw new Test262Error();
+  }
+};
+var nonWritableLastIndex = {
+  get lastIndex() {
+    callCount += 1;
+  },
+  // This method defined to avoid false positives from unrelated TypeErrors
+  exec: function() {
+    return null;
+  }
+};
+
+callCount = 0;
+assert.throws(Test262Error, function() {
+  RegExp.prototype[Symbol.search].call(poisonedLastIndex);
+});
+assert.sameValue(
+  callCount,
+  1,
+  'Property value was accessed before being set ("poisoned" lastIndex)'
+);
+
+callCount = 0;
+assert.throws(TypeError, function() {
+  RegExp.prototype[Symbol.search].call(nonWritableLastIndex);
+});
+assert.sameValue(
+  callCount,
+  1,
+  'Property value was accessed before being set (non-writable lastIndex)'
+);
+
+reportCompare(0, 0);