1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/non262/Intl/Locale/cross-compartment.js b/js/src/tests/non262/Intl/Locale/cross-compartment.js
new file mode 100644
index 0000000000..d3788e3eb7
--- /dev/null
+++ b/js/src/tests/non262/Intl/Locale/cross-compartment.js
@@ -0,0 +1,28 @@
+// |reftest| skip-if(!this.hasOwnProperty('Intl'))
+
+var g = newGlobal();
+
+var tag = "de-Latn-AT-u-ca-gregory-nu-latn-co-phonebk-kf-false-kn-hc-h23";
+var locale = new Intl.Locale(tag);
+var ccwLocale = new g.Intl.Locale(tag);
+
+for (var [key, {get, value = get}] of Object.entries(Object.getOwnPropertyDescriptors(Intl.Locale.prototype))) {
+    if (typeof value === "function") {
+        if (key !== "constructor") {
+            var expectedValue = value.call(locale);
+
+            if (typeof expectedValue === "string" || typeof expectedValue === "boolean") {
+                assertEq(value.call(ccwLocale), expectedValue, key);
+            } else if (expectedValue instanceof Intl.Locale) {
+                assertEq(value.call(ccwLocale).toString(), expectedValue.toString(), key);
+            } else {
+                throw new Error("unexpected result value");
+            }
+        } else {
+            assertEq(new value(ccwLocale).toString(), new value(locale).toString(), key);
+        }
+    }
+}
+
+if (typeof reportCompare === "function")
+    reportCompare(0, 0);