1 files changed, 23 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/regress/regress-907479.js b/deps/v8/test/mjsunit/regress/regress-907479.js
new file mode 100644
index 0000000000..e3e1d0926a
--- /dev/null
+++ b/deps/v8/test/mjsunit/regress/regress-907479.js
@@ -0,0 +1,23 @@
+// Copyright 2018 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+'use strict';
+
+{
+  const x = [42];
+  x.splice(0, 0, 23);
+  assertEquals([23, 42], x);
+  x.length++;
+  assertEquals([23, 42, ,], x);
+  assertFalse(x.hasOwnProperty(2));
+}
+
+{
+  const x = [4.2];
+  x.splice(0, 0, 23);
+  assertEquals([23, 4.2], x);
+  x.length++;
+  assertEquals([23, 4.2, ,], x);
+  assertFalse(x.hasOwnProperty(2));
+}