1 files changed, 52 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/function/scope-name-var-open-non-strict.js b/js/src/tests/test262/language/expressions/function/scope-name-var-open-non-strict.js
new file mode 100644
index 0000000000..4d52ee06c5
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/function/scope-name-var-open-non-strict.js
@@ -0,0 +1,52 @@
+// 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-function-definitions-runtime-semantics-evaluation
+description: >
+    Creation of new variable environment for the BindingIdentifier
+    parameter
+info: |
+    [...]
+    2. Let scope be the running execution context's LexicalEnvironment.
+    3. Let funcEnv be NewDeclarativeEnvironment(scope).
+    4. Let envRec be funcEnv's EnvironmentRecord.
+    5. Let name be StringValue of BindingIdentifier.
+    6. Perform envRec.CreateImmutableBinding(name, false).
+    7. Let closure be FunctionCreate(Normal, FormalParameters, FunctionBody,
+       funcEnv, strict).
+    [...]
+flags: [noStrict]
+---*/
+
+var f = 'outside';
+var probeBefore = function() { return f; };
+var setBefore = function() { f = null; };
+var probeParams, setParams, probeBody, setBody;
+
+var func = function f(
+  _ = (
+    probeParams = function() { return f; },
+    setParams = function() { f = null; }
+    )
+  ) {
+  probeBody = function() { return f; };
+  setBody = function() { f = null; };
+};
+
+func();
+
+assert.sameValue(probeBefore(), 'outside');
+setBefore();
+assert.sameValue(probeBefore(), null);
+
+assert.sameValue(probeParams(), func, 'inner binding value (from parameters)');
+setParams();
+assert.sameValue(
+  probeParams(), func, 'inner binding is immutable (from parameters)'
+);
+
+assert.sameValue(probeBody(), func, 'inner binding value (from body)');
+setBody();
+assert.sameValue(probeBody(), func, 'inner binding is immutable (from body)');
+
+reportCompare(0, 0);