1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/mergeFields/not-a-constructor.js b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/mergeFields/not-a-constructor.js
new file mode 100644
index 0000000000..c53ddcbf32
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/Calendar/prototype/mergeFields/not-a-constructor.js
@@ -0,0 +1,24 @@
+// |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.mergefields
+description: >
+  Temporal.Calendar.prototype.mergeFields does not implement [[Construct]], is not new-able
+info: |
+    Built-in function objects that are not identified as constructors do not implement the
+    [[Construct]] internal method unless otherwise specified in the description of a particular
+    function.
+includes: [isConstructor.js]
+features: [Reflect.construct, Temporal]
+---*/
+
+assert.throws(TypeError, () => {
+  new Temporal.Calendar.prototype.mergeFields();
+}, "Calling as constructor");
+
+assert.sameValue(isConstructor(Temporal.Calendar.prototype.mergeFields), false,
+  "isConstructor(Temporal.Calendar.prototype.mergeFields)");
+
+reportCompare(0, 0);