1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/global-code/switch-case-global-skip-early-err.js b/js/src/tests/test262/annexB/language/global-code/switch-case-global-skip-early-err.js
new file mode 100644
index 0000000000..a85069836a
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/global-code/switch-case-global-skip-early-err.js
@@ -0,0 +1,27 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/global-skip-early-err.case
+// - src/annex-b-fns/global/switch-case.template
+/*---
+description: Extension not observed when creation of variable binding would produce an early error (Function declaration in the `case` clause of a `switch` statement in the global scope)
+esid: sec-web-compat-globaldeclarationinstantiation
+flags: [generated, noStrict]
+info: |
+    B.3.3.2 Changes to GlobalDeclarationInstantiation
+
+    [...]
+    b. If replacing the FunctionDeclaration f with a VariableStatement that has
+       F as a BindingIdentifier would not produce any Early Errors for script,
+       then
+    [...]
+---*/
+let f = 123;
+assert.sameValue(f, 123, 'binding is not initialized to `undefined`');
+
+switch (1) {
+  case 1:
+    function f() {  }
+}
+
+assert.sameValue(f, 123, 'value is not updated following evaluation');
+
+reportCompare(0, 0);