1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Temporal/PlainMonthDay/builtin.js b/js/src/tests/test262/built-ins/Temporal/PlainMonthDay/builtin.js
new file mode 100644
index 0000000000..0f9124ee4a
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Temporal/PlainMonthDay/builtin.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.plainmonthday
+description: Tests that Temporal.PlainMonthDay meets the requirements for built-in objects
+info: |
+    Unless specified otherwise, a built-in object that is callable as a function is a built-in
+    function object with the characteristics described in 10.3. Unless specified otherwise, the
+    [[Extensible]] internal slot of a built-in object initially has the value true.
+
+    Unless otherwise specified every built-in function and every built-in constructor has the
+    Function prototype object [...] as the value of its [[Prototype]] internal slot.
+features: [Temporal]
+---*/
+
+assert.sameValue(Object.isExtensible(Temporal.PlainMonthDay),
+  true, "Built-in objects must be extensible.");
+
+assert.sameValue(Object.prototype.toString.call(Temporal.PlainMonthDay),
+  "[object Function]", "Object.prototype.toString");
+
+assert.sameValue(Object.getPrototypeOf(Temporal.PlainMonthDay),
+  Function.prototype, "prototype");
+
+assert.sameValue(typeof Temporal.PlainMonthDay.prototype,
+  "object", "prototype property");
+
+reportCompare(0, 0);