1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/tests/test262/annexB/language/eval-code/direct/func-switch-dflt-eval-func-no-skip-param.js b/js/src/tests/test262/annexB/language/eval-code/direct/func-switch-dflt-eval-func-no-skip-param.js
new file mode 100644
index 0000000000..a12601f4be
--- /dev/null
+++ b/js/src/tests/test262/annexB/language/eval-code/direct/func-switch-dflt-eval-func-no-skip-param.js
@@ -0,0 +1,34 @@
+// This file was procedurally generated from the following sources:
+// - src/annex-b-fns/eval-func-no-skip-param.case
+// - src/annex-b-fns/eval-func/direct-switch-dflt.template
+/*---
+description: Extension observed when there is a formal parameter with the same name (Funtion declaration in the `default` clause of a `switch` statement in eval code in the global scope)
+esid: sec-web-compat-evaldeclarationinstantiation
+flags: [generated, noStrict]
+info: |
+    B.3.3.3 Changes to EvalDeclarationInstantiation
+
+    [...]
+    ii. If replacing the FunctionDeclaration f with a VariableStatement that
+        has F as a BindingIdentifier would not produce any Early Errors for
+        body, then
+    [...]
+---*/
+var init, after;
+
+(function(f) {
+  eval(
+    'init = f;switch (1) {' +
+    '  default:' +
+    '    function f() {  }' +
+    '}\
+    after = f;'
+  );
+}(123));
+
+assert.sameValue(init, 123, 'binding is not initialized to `undefined`');
+assert.sameValue(
+  typeof after, 'function', 'value is updated following evaluation'
+);
+
+reportCompare(0, 0);