1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/tests/non262/Temporal/PlainDate/from-with-modified-array-iterator-state.js b/js/src/tests/non262/Temporal/PlainDate/from-with-modified-array-iterator-state.js
new file mode 100644
index 0000000000..ac0febc1e6
--- /dev/null
+++ b/js/src/tests/non262/Temporal/PlainDate/from-with-modified-array-iterator-state.js
@@ -0,0 +1,22 @@
+// |reftest| skip-if(!this.hasOwnProperty("Temporal"))
+
+const ArrayIteratorPrototype = Object.getPrototypeOf([][Symbol.iterator]());
+
+// Modify the ArrayIteratorPrototype prototype chain to disable optimisations.
+Object.setPrototypeOf(ArrayIteratorPrototype, {});
+
+let calendar = new Temporal.Calendar("iso8601");
+
+let dateLike = {
+  calendar,
+  day: 1,
+  month: 1,
+  year: 0,
+};
+
+let result = Temporal.PlainDate.from(dateLike);
+
+assertEq(result.toString(), "0000-01-01");
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);