LibJS: Add [[LanguageDisplay]] to Intl.DisplayNames's resolvedOptions

Author: https://github.com/trflynn89 Commit: 1a3e6e8a7b Pull-request: https://github.com/SerenityOS/serenity/pull/11847
2025-09-02 23:56:06 +00:00 · 2022-01-12 14:18:22 -05:00 · 2022-01-12 14:18:22 -05:00 · 1a3e6e8a7b · 2024-07-17 20:57:24 +09:00
commit 1a3e6e8a7b
parent 27c845eef2
2 changed files with 56 additions and 0 deletions
--- a/Userland/Libraries/LibJS/Tests/builtins/Intl/DisplayNames/DisplayNames.prototype.resolvedOptions.js
+++ b/Userland/Libraries/LibJS/Tests/builtins/Intl/DisplayNames/DisplayNames.prototype.resolvedOptions.js
@ -26,6 +26,58 @@ describe("correct behavior", () => {
            style: "short",
            type: "language",
            fallback: "code",
+            languageDisplay: "dialect",
+        });
+
+        const ar = new Intl.DisplayNames("ar", { type: "calendar" });
+        expect(ar.resolvedOptions()).toEqual({
+            locale: "ar",
+            style: "long",
+            type: "calendar",
+            fallback: "code",
+        });
+
+        const fr = new Intl.DisplayNames("fr", { type: "dateTimeField" });
+        expect(fr.resolvedOptions()).toEqual({
+            locale: "fr",
+            style: "long",
+            type: "dateTimeField",
+            fallback: "code",
+        });
+    });
+
+    test("all valid language displays", () => {
+        const en = new Intl.DisplayNames("en", { type: "language" });
+        expect(en.resolvedOptions()).toEqual({
+            locale: "en",
+            style: "long",
+            type: "language",
+            fallback: "code",
+            languageDisplay: "dialect",
+        });
+
+        const es419 = new Intl.DisplayNames("es-419", {
+            type: "language",
+            languageDisplay: "dialect",
+        });
+        expect(es419.resolvedOptions()).toEqual({
+            locale: "es-419",
+            style: "long",
+            type: "language",
+            fallback: "code",
+            languageDisplay: "dialect",
+        });
+
+        const zhHant = new Intl.DisplayNames(["zh-Hant"], {
+            type: "language",
+            languageDisplay: "standard",
+        });
+        expect(zhHant.resolvedOptions()).toEqual({
+            locale: "zh-Hant",
+            style: "long",
+            type: "language",
+            fallback: "code",
+            languageDisplay: "standard",
        });
    });