1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/DateTimeFormat/constructor-no-instanceof.js b/js/src/tests/test262/intl402/DateTimeFormat/constructor-no-instanceof.js
new file mode 100644
index 0000000000..c2905aa57b
--- /dev/null
+++ b/js/src/tests/test262/intl402/DateTimeFormat/constructor-no-instanceof.js
@@ -0,0 +1,25 @@
+// Copyright (C) 2021 Igalia S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl-datetimeformat-constructor
+description: >
+  Tests that the Intl.DateTimeFormat constructor calls
+  OrdinaryHasInstance instead of the instanceof operator which includes a
+  Symbol.hasInstance lookup and call among other things.
+info: >
+  ChainDateTimeFormat ( dateTimeFormat, newTarget, this )
+  1.  If newTarget is undefined and ? OrdinaryHasInstance(%DateTimeFormat%, this) is true, then
+      a.  Perform ? DefinePropertyOrThrow(this, %Intl%.[[FallbackSymbol]], PropertyDescriptor{
+          [[Value]]: dateTimeFormat, [[Writable]]: false, [[Enumerable]]: false,
+          [[Configurable]]: false }).
+      b.  Return this.
+---*/
+
+Object.defineProperty(Intl.DateTimeFormat, Symbol.hasInstance, {
+    get() { throw new Test262Error(); }
+});
+
+Intl.DateTimeFormat();
+
+reportCompare(0, 0);