1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/destructuring/binding/syntax/destructuring-array-parameters-function-arguments-length.js b/js/src/tests/test262/language/destructuring/binding/syntax/destructuring-array-parameters-function-arguments-length.js
new file mode 100644
index 0000000000..3ea3b59a00
--- /dev/null
+++ b/js/src/tests/test262/language/destructuring/binding/syntax/destructuring-array-parameters-function-arguments-length.js
@@ -0,0 +1,37 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-destructuring-binding-patterns-static-semantics-hasinitializer
+description: >
+  Function.length when ArrayBindingPattern in FormalParameterList
+info: |
+  #sec-function-definitions-static-semantics-expectedargumentcount
+
+  Static Semantics: ExpectedArgumentCount
+
+    FormalParameterList : FormalParameter
+
+    1. If HasInitializer of FormalParameter is true, return 0.
+    2. Return 1.
+
+  #sec-destructuring-binding-patterns-static-semantics-hasinitializer
+
+  Static Semantics: HasInitializer
+
+    BindingElement : BindingPattern
+
+    1. Return false.
+
+features: [destructuring-binding]
+---*/
+
+assert.sameValue((([a,b]) => {}).length, 1);
+assert.sameValue((function([a,b]) {}).length, 1);
+assert.sameValue((function * ([a,b]) {}).length, 1);
+assert.sameValue((async ([a,b]) => {}).length, 1);
+assert.sameValue((async function([a,b]) {}).length, 1);
+assert.sameValue((async function * ([a,b]) {}).length, 1);
+
+
+reportCompare(0, 0);