1 files changed, 64 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-fn.js b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..4c676d43fc
--- /dev/null
+++ b/js/src/tests/test262/language/statements/function/dstr/obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/func-decl.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (function declaration)
+esid: sec-function-definitions-runtime-semantics-instantiatefunctionobject
+features: [destructuring-binding]
+flags: [generated]
+info: |
+    FunctionDeclaration :
+        function BindingIdentifier ( FormalParameters ) { FunctionBody }
+
+        [...]
+        3. Let F be FunctionCreate(Normal, FormalParameters, FunctionBody,
+           scope, strict).
+        [...]
+
+    9.2.1 [[Call]] ( thisArgument, argumentsList)
+
+    [...]
+    7. Let result be OrdinaryCallEvaluateBody(F, argumentsList).
+    [...]
+
+    9.2.1.3 OrdinaryCallEvaluateBody ( F, argumentsList )
+
+    1. Let status be FunctionDeclarationInstantiation(F, argumentsList).
+    [...]
+
+    9.2.12 FunctionDeclarationInstantiation(func, argumentsList)
+
+    [...]
+    23. Let iteratorRecord be Record {[[iterator]]:
+        CreateListIterator(argumentsList), [[done]]: false}.
+    24. If hasDuplicates is true, then
+        [...]
+    25. Else,
+        b. Let formalStatus be IteratorBindingInitialization for formals with
+           iteratorRecord and env as arguments.
+    [...]
+
+    13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+    SingleNameBinding : BindingIdentifier Initializeropt
+
+    [...]
+    6. If Initializer is present and v is undefined, then
+       [...]
+       d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+          i. Let hasNameProperty be HasOwnProperty(v, "name").
+          ii. ReturnIfAbrupt(hasNameProperty).
+          iii. If hasNameProperty is false, perform SetFunctionName(v,
+               bindingId).
+---*/
+
+var callCount = 0;
+function f({ fn = function () {}, xFn = function x() {} }) {
+  assert.sameValue(fn.name, 'fn');
+  assert.notSameValue(xFn.name, 'xFn');
+  callCount = callCount + 1;
+};
+f({});
+assert.sameValue(callCount, 1, 'function invoked exactly once');
+
+reportCompare(0, 0);