1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/function/scope-paramsbody-var-open.js b/js/src/tests/test262/language/statements/function/scope-paramsbody-var-open.js
new file mode 100644
index 0000000000..84c38b197c
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/scope-paramsbody-var-open.js
@@ -0,0 +1,35 @@
+// 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-functiondeclarationinstantiation
+description: >
+    Creation of new variable environment for the function body (as distinct from
+    that for the function's parameters)
+info: |
+    [...]
+    26. If hasParameterExpressions is false, then
+        [...]
+    27. Else,
+        a. NOTE A separate Environment Record is needed to ensure that closures
+           created by expressions in the formal parameter list do not have
+           visibility of declarations in the function body.
+        b. Let varEnv be NewDeclarativeEnvironment(env).
+        c. Let varEnvRec be varEnv's EnvironmentRecord.
+        d. Set the VariableEnvironment of calleeContext to varEnv.
+        e. Let instantiatedVarNames be a new empty List.
+        [...]
+---*/
+
+var x = 'outside';
+var probeParams, probeBody;
+
+function f(_ = probeParams = function() { return x; }) {
+  var x = 'inside';
+  probeBody = function() { return x; };
+}
+f();
+
+assert.sameValue(probeParams(), 'outside');
+assert.sameValue(probeBody(), 'inside');
+
+reportCompare(0, 0);