1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/function/scope-param-elem-var-open.js b/js/src/tests/test262/language/statements/function/scope-param-elem-var-open.js
new file mode 100644
index 0000000000..fa797f651b
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/scope-param-elem-var-open.js
@@ -0,0 +1,31 @@
+// 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: >
+    sloppy direct evals in params introduce vars
+info: |
+    [...]
+    20. Else,
+      a. NOTE: A separate Environment Record is needed to ensure that bindings created by direct eval calls in the formal parameter list are outside the environment where parameters are declared.
+      b. Let calleeEnv be the LexicalEnvironment of calleeContext.
+      c. Let env be NewDeclarativeEnvironment(calleeEnv).
+      d. Let envRec be env's EnvironmentRecord.
+    [...]
+flags: [noStrict]
+---*/
+
+var x = 'outside';
+var probe1, probe2;
+
+function f(
+    _ = probe1 = function() { return x; },
+    __ = (eval('var x = "inside";'), probe2 = function() { return x; })
+  ) {
+}
+f();
+
+assert.sameValue(probe1(), 'inside');
+assert.sameValue(probe2(), 'inside');
+
+reportCompare(0, 0);