1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/function-code/switch-case-func-existing-var-update.js b/js/src/tests/test262/annexB/language/function-code/switch-case-func-existing-var-update.js
new file mode 100644
index 0000000000..ec37b546af
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/function-code/switch-case-func-existing-var-update.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/func-existing-var-update.case
+// - src/annex-b-fns/func/switch-case.template
+/*---
+description: Variable-scoped binding is updated following evaluation (Function declaration in the `case` clause of a `switch` statement in function scope)
+esid: sec-web-compat-functiondeclarationinstantiation
+flags: [generated, noStrict]
+info: |
+    B.3.3.1 Changes to FunctionDeclarationInstantiation
+
+    [...]
+    3. When the FunctionDeclaration f is evaluated, perform the following steps
+       in place of the FunctionDeclaration Evaluation algorithm provided in
+       14.1.21:
+       a. Let fenv be the running execution context's VariableEnvironment.
+       b. Let fenvRec be fenv's EnvironmentRecord.
+       c. Let benv be the running execution context's LexicalEnvironment.
+       d. Let benvRec be benv's EnvironmentRecord.
+       e. Let fobj be ! benvRec.GetBindingValue(F, false).
+       f. Perform ! fenvRec.SetMutableBinding(F, fobj, false).
+       g. Return NormalCompletion(empty). 
+---*/
+var after;
+
+(function() {
+  
+
+  switch (1) {
+    case 1:
+      function f() { return 'function declaration'; }
+  }
+
+  after = f;
+
+  var f = 123;
+}());
+
+assert.sameValue(typeof after, 'function');
+assert.sameValue(after(), 'function declaration');
+
+
+reportCompare(0, 0);