1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/global-code/switch-case-global-block-scoping.js b/js/src/tests/test262/annexB/language/global-code/switch-case-global-block-scoping.js
new file mode 100644
index 0000000000..b03d2a4dcc
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/global-code/switch-case-global-block-scoping.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/global-block-scoping.case
+// - src/annex-b-fns/global/switch-case.template
+/*---
+description: A block-scoped binding is created (Function declaration in the `case` clause of a `switch` statement in the global scope)
+esid: sec-web-compat-globaldeclarationinstantiation
+flags: [generated, noStrict]
+info: |
+    13.2.14 Runtime Semantics: BlockDeclarationInstantiation
+
+    [...]
+    4. For each element d in declarations do
+       a. For each element dn of the BoundNames of d do
+          i. If IsConstantDeclaration of d is true, then
+             [...]
+          ii. Else,
+              2. Perform ! envRec.CreateMutableBinding(dn, false).
+
+       b. If d is a GeneratorDeclaration production or a FunctionDeclaration
+          production, then
+          i. Let fn be the sole element of the BoundNames of d.
+          ii. Let fo be the result of performing InstantiateFunctionObject for
+              d with argument env.
+          iii. Perform envRec.InitializeBinding(fn, fo).
+---*/
+var initialBV, currentBV;
+
+switch (1) {
+  case 1:
+    function f() { initialBV = f; f = 123; currentBV = f; return 'decl'; }
+}
+
+f();
+
+assert.sameValue(
+  initialBV(),
+  'decl',
+  'Block-scoped binding value is function object at execution time'
+);
+assert.sameValue(currentBV, 123, 'Block-scoped binding is mutable');
+assert.sameValue(
+  f(),
+  'decl',
+  'Block-scoped binding is independent of outer var-scoped binding'
+);
+
+reportCompare(0, 0);