1 files changed, 10 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/for-of/arrays-2.js b/js/src/jit-test/tests/for-of/arrays-2.js
new file mode 100644
index 0000000000..df20f92232
--- /dev/null
+++ b/js/src/jit-test/tests/for-of/arrays-2.js
@@ -0,0 +1,10 @@
+// A for-of loop over an array does not take a snapshot of the array elements.
+// Instead, each time the loop needs an element from the array, it gets its current value.
+
+var a = [3, 5, 5, 4, 0, 5];
+var s = '';
+for (var i of a) {
+    s += i;
+    a[i] = 'X';
+}
+assertEq(s, '355X0X');