1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/global-code/switch-dflt-global-skip-early-err-block.js b/js/src/tests/test262/annexB/language/global-code/switch-dflt-global-skip-early-err-block.js
new file mode 100644
index 0000000000..8bc922544a
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/global-code/switch-dflt-global-skip-early-err-block.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/global-skip-early-err-block.case
+// - src/annex-b-fns/global/switch-dflt.template
+/*---
+description: Extension not observed when creation of variable binding would produce an early error (Block statement) (Funtion declaration in the `default` 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
+    [...]
+---*/
+assert.throws(ReferenceError, function() {
+  f;
+}, 'An initialized binding is not created prior to evaluation');
+assert.sameValue(
+  typeof f,
+  'undefined',
+  'An uninitialized binding is not created prior to evaluation'
+);
+
+{
+let f = 123;
+
+switch (1) {
+  default:
+    function f() {  }
+}
+
+}
+
+assert.throws(ReferenceError, function() {
+  f;
+}, 'An initialized binding is not created following evaluation');
+assert.sameValue(
+  typeof f,
+  'undefined',
+  'An uninitialized binding is not created following evaluation'
+);
+
+reportCompare(0, 0);