1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/fields/argument-iterable-not-array.js b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/fields/argument-iterable-not-array.js
new file mode 100644
index 0000000000..ead494c99e
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/fields/argument-iterable-not-array.js
@@ -0,0 +1,30 @@
+// |reftest| skip-if(!this.hasOwnProperty('Temporal')) -- Temporal is not enabled unconditionally
+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-temporal.calendar.prototype.fields
+description: A non-Array iterable passed as the argument is exhausted
+info: |
+    sec-temporal.calendar.prototype.fields step 4:
+      4. Let _fieldNames_ be ? IterableToList(_fields_).
+includes: [compareArray.js]
+features: [Temporal]
+---*/
+
+const fieldNames = ["day", "month", "monthCode", "year"];
+const iterable = {
+  iteratorExhausted: false,
+  *[Symbol.iterator]() {
+    yield* fieldNames;
+    this.iteratorExhausted = true;
+  },
+};
+
+const calendar = new Temporal.Calendar("iso8601");
+const result = calendar.fields(iterable);
+
+assert.compareArray(result, fieldNames);
+assert(iterable.iteratorExhausted);
+
+reportCompare(0, 0);