1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/tests/non262/Tuple/4.1.2.6.js b/js/src/tests/non262/Tuple/4.1.2.6.js
new file mode 100644
index 0000000000..c1533bd7f6
--- /dev/null
+++ b/js/src/tests/non262/Tuple/4.1.2.6.js
@@ -0,0 +1,19 @@
+// |reftest| skip-if(!this.hasOwnProperty("Tuple"))
+
+/*
+4.1.2.6 [[Set]] ( P, Receiver )
+The [[Set]] internal method of a Tuple exotic object takes arguments P and Receiver. It performs the following steps when called:
+
+1. Assert: IsPropertyKey(P) is true.
+2. Return false.
+*/
+
+// Setting properties should have no effect
+var t = #[1];
+t[4294967295] = "not a tuple element";
+assertEq(t[4294967295], undefined);
+assertEq(t.length, 1);
+t[1] = 5;
+assertEq(t.length, 1);
+
+reportCompare(0, 0);