1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/block/scope-lex-open.js b/js/src/tests/test262/language/statements/block/scope-lex-open.js
new file mode 100644
index 0000000000..5d711ea573
--- /dev/null
+++ b/js/src/tests/test262/language/statements/block/scope-lex-open.js
@@ -0,0 +1,28 @@
+// 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-block-runtime-semantics-evaluation
+description: Creation of new lexical environment for BlockStatement
+info: |
+    1. Let oldEnv be the running execution context's LexicalEnvironment.
+    2. Let blockEnv be NewDeclarativeEnvironment(oldEnv).
+    3. Perform BlockDeclarationInstantiation(StatementList, blockEnv).
+    4. Set the running execution context's LexicalEnvironment to blockEnv.
+    5. Let blockValue be the result of evaluating StatementList.
+    [...]
+features: [let]
+---*/
+
+let x = 'outside';
+var probeBefore = function() { return x; };
+var probeInside;
+
+{
+  let x = 'inside';
+  probeInside = function() { return x; };
+}
+
+assert.sameValue(probeBefore(), 'outside');
+assert.sameValue(probeInside(), 'inside');
+
+reportCompare(0, 0);