1 files changed, 9 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arguments/defaults-destructuring-function-expression.js b/js/src/jit-test/tests/arguments/defaults-destructuring-function-expression.js
new file mode 100644
index 000000000..9517a5c4d
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/defaults-destructuring-function-expression.js
@@ -0,0 +1,9 @@
+let f = function(a, bIs, cIs, dIs, {b}={b: 3}, c=4, [d]=[5]) {
+  assertEq(a, 1);
+  assertEq(b, bIs);
+  assertEq(c, cIs);
+  assertEq(d, dIs);
+};
+assertEq(f.length, 4);
+f(1, 3, 4, 5);
+f(1, 42, 43, 44, {b: 42}, 43, [44]);