1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/function-code/switch-dflt-func-init.js b/js/src/tests/test262/annexB/language/function-code/switch-dflt-func-init.js
new file mode 100644
index 0000000000..cab3d64da2
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/function-code/switch-dflt-func-init.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/func-init.case
+// - src/annex-b-fns/func/switch-dflt.template
+/*---
+description: Variable binding is initialized to `undefined` in outer scope (Funtion declaration in the `default` clause of a `switch` statement in function scope)
+esid: sec-web-compat-functiondeclarationinstantiation
+flags: [generated, noStrict]
+info: |
+    B.3.3.1 Changes to FunctionDeclarationInstantiation
+
+    [...]
+    2. If instantiatedVarNames does not contain F, then
+       a. Perform ! varEnvRec.CreateMutableBinding(F, false).
+       b. Perform varEnvRec.InitializeBinding(F, undefined).
+       c. Append F to instantiatedVarNames.
+    [...]
+---*/
+var init, changed;
+
+(function() {
+  init = f;
+  f = 123;
+  changed = f;
+
+  switch (1) {
+    default:
+      function f() {  }
+  }
+
+  
+}());
+
+assert.sameValue(init, undefined, 'binding is initialized to `undefined`');
+assert.sameValue(changed, 123, 'binding is mutable');
+assert.throws(ReferenceError, function() {
+  f;
+}, 'global binding is not created');
+
+reportCompare(0, 0);