Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 30 insertions, 0 deletions

diff --git a/js/src/tests/test262/intl402/NumberFormat/subclassing.js b/js/src/tests/test262/intl402/NumberFormat/subclassing.js
new file mode 100644
index 0000000000..e143233d50
--- /dev/null
+++ b/js/src/tests/test262/intl402/NumberFormat/subclassing.js
@@ -0,0 +1,30 @@
+// Copyright 2011-2012 Norbert Lindenberg. All rights reserved.
+// Copyright 2012 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 11.1.2
+description: Tests that Intl.NumberFormat can be subclassed.
+author: Norbert Lindenberg
+includes: [compareArray.js]
+---*/
+
+// get a number format and have it format an array of numbers for comparison with the subclass
+var locales = ["tlh", "id", "en"];
+var a = [0, 1, -1, -123456.789, -Infinity, NaN];
+var referenceNumberFormat = new Intl.NumberFormat(locales);
+var referenceFormatted = a.map(referenceNumberFormat.format);
+
+class MyNumberFormat extends Intl.NumberFormat {
+  constructor(locales, options) {
+    super(locales, options);
+    // could initialize MyNumberFormat properties
+  }
+  // could add methods to MyNumberFormat.prototype
+}
+
+var format = new MyNumberFormat(locales);
+var actual = a.map(format.format);
+assert.compareArray(actual, referenceFormatted);
+
+reportCompare(0, 0);