Add m-esr52 at 52.6.0

1 files changed, 27 insertions, 0 deletions

diff --git a/js/src/tests/test262/intl402/ch09/9.2/9.2.6_2.js b/js/src/tests/test262/intl402/ch09/9.2/9.2.6_2.js
new file mode 100644
index 000000000..8d4f7efa9
--- /dev/null
+++ b/js/src/tests/test262/intl402/ch09/9.2/9.2.6_2.js
@@ -0,0 +1,27 @@
+// Copyright 2012 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * @description Tests that the behavior of a List is not affected by adversarial
+ *     changes to Array.prototype.
+ * @author Norbert Lindenberg
+ */
+
+$INCLUDE("testIntl.js");
+
+taintArray();
+
+testWithIntlConstructors(function (Constructor) {
+    // this test should work equally for both matching algorithms
+    ["lookup", "best fit"].forEach(function (matcher) {
+        var defaultLocale = new Constructor().resolvedOptions().locale;
+        var canonicalized = Constructor.supportedLocalesOf([defaultLocale, defaultLocale],
+            {localeMatcher: matcher});
+        if (canonicalized.length > 1) {
+            $ERROR("Canonicalization with matcher " + matcher + " didn't remove duplicate language tags from locale list.");
+        }
+    });
+
+    return true;
+});
+