1 files changed, 27 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/global-code/switch-dflt-global-existing-block-fn-no-init.js b/js/src/tests/test262/annexB/language/global-code/switch-dflt-global-existing-block-fn-no-init.js
new file mode 100644
index 0000000000..5a8d67620a
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/global-code/switch-dflt-global-existing-block-fn-no-init.js
@@ -0,0 +1,27 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/global-existing-block-fn-no-init.case
+// - src/annex-b-fns/global/switch-dflt.template
+/*---
+description: Does not re-initialize binding created by similar forms (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 declaredFunctionOrVarNames does not contain F, then
+       i. Perform ? envRec.CreateGlobalFunctionBinding(F, undefined, false).
+       ii. Append F to declaredFunctionOrVarNames.
+---*/
+assert.sameValue(f, undefined);
+
+{
+  function f() {}
+}
+
+switch (1) {
+  default:
+    function f() {  }
+}
+
+reportCompare(0, 0);