1 files changed, 8 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/bug1666856.js b/js/src/jit-test/tests/basic/bug1666856.js
new file mode 100644
index 0000000000..ea6e6942d2
--- /dev/null
+++ b/js/src/jit-test/tests/basic/bug1666856.js
@@ -0,0 +1,8 @@
+// |jit-test| skip-if: !this.oomTest
+
+let i = 10000;
+oomTest(() => {
+  let arr = [];
+  arr[i++] = 1;
+  for (var key in arr) {}
+});