1 files changed, 52 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/global-code/switch-dflt-global-existing-non-enumerable-global-init.js b/js/src/tests/test262/annexB/language/global-code/switch-dflt-global-existing-non-enumerable-global-init.js
new file mode 100644
index 0000000000..355df49ab1
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/global-code/switch-dflt-global-existing-non-enumerable-global-init.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/global-existing-non-enumerable-global-init.case
+// - src/annex-b-fns/global/switch-dflt.template
+/*---
+description: Variable binding is left in place by legacy function hoisting. CreateGlobalVariableBinding leaves the binding as non-enumerable even if it has the chance to change it to be enumerable. (Funtion declaration in the `default` clause of a `switch` statement in the global scope)
+esid: sec-web-compat-globaldeclarationinstantiation
+flags: [generated, noStrict]
+includes: [fnGlobalObject.js, propertyHelper.js]
+info: |
+    B.3.3.3 Changes to GlobalDeclarationInstantiation
+
+    [...]
+    Perform ? varEnvRec.CreateGlobalVarBinding(F, true).
+    [...]
+
+---*/
+var global = fnGlobalObject();
+Object.defineProperty(global, 'f', {
+  value: 'x',
+  enumerable: false,
+  writable: true,
+  configurable: true
+});
+
+$262.evalScript(`
+assert.sameValue(f, 'x');
+verifyProperty(global, 'f', {
+  enumerable: false,
+  writable: true,
+  configurable: true
+}, { restore: true });
+`);
+
+$262.evalScript(`
+
+switch (1) {
+  default:
+    function f() { return 'inner declaration'; }
+}
+
+`);
+
+$262.evalScript(`
+assert.sameValue(f(), 'inner declaration');
+verifyProperty(global, 'f', {
+  enumerable: false,
+  writable: true,
+  configurable: true
+});
+`);
+
+reportCompare(0, 0);