1 files changed, 50 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/global-code/block-decl-global-existing-global-init.js b/js/src/tests/test262/annexB/language/global-code/block-decl-global-existing-global-init.js
new file mode 100644
index 0000000000..8f01bd2011
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/global-code/block-decl-global-existing-global-init.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/global-existing-global-init.case
+// - src/annex-b-fns/global/block.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. (Block statement in the global scope containing a function declaration)
+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: true,
+  writable: true,
+  configurable: false
+});
+
+$262.evalScript(`
+assert.sameValue(f, 'x');
+verifyProperty(global, 'f', {
+  enumerable: true,
+  writable: true,
+  configurable: false
+}, { restore: true });
+`);
+
+$262.evalScript(`
+
+{
+  function f() { return 'inner declaration'; }
+}
+
+`);
+
+$262.evalScript(`
+verifyProperty(global, 'f', {
+  enumerable: true,
+  writable: true,
+  configurable: false
+});
+`);
+
+reportCompare(0, 0);