1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/non262/Intl/DisplayNames/abbreviated.js b/js/src/tests/non262/Intl/DisplayNames/abbreviated.js
new file mode 100644
index 0000000000..4203ffcbac
--- /dev/null
+++ b/js/src/tests/non262/Intl/DisplayNames/abbreviated.js
@@ -0,0 +1,28 @@
+// |reftest| skip-if(!this.hasOwnProperty('Intl')||!this.hasOwnProperty('addIntlExtras'))
+
+addMozIntlDisplayNames(this);
+
+const tests = {
+  "en": {
+    long: ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"],
+    abbreviated: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
+    short: ["Mo", "Tu", "We", "Th", "Fr", "Sa", "Su"],
+    narrow: ["M", "T", "W", "T", "F", "S", "S"],
+  },
+};
+
+for (let [locale, localeTests] of Object.entries(tests)) {
+  for (let [style, weekdays] of Object.entries(localeTests)) {
+    let dn = new Intl.DisplayNames(locale, {type: "weekday", style});
+
+    let resolved = dn.resolvedOptions();
+    assertEq(resolved.style, style);
+
+    for (let [day, expected] of weekdays.entries()) {
+      assertEq(dn.of(day + 1), expected);
+    }
+  }
+}
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);