diff --git a/apps/client/src/widgets/type_widgets/text/config.spec.ts b/apps/client/src/widgets/type_widgets/text/config.spec.ts
new file mode 100644
index 000000000..5e85bab3b
--- /dev/null
+++ b/apps/client/src/widgets/type_widgets/text/config.spec.ts
@@ -0,0 +1,39 @@
+import { DISPLAYABLE_LOCALE_IDS, LOCALES } from "@triliumnext/commons";
+import { describe, expect, it, vi } from "vitest";
+
+vi.mock('../../../services/options.js', () => ({
+    default: {
+        get(name: string) {
+            if (name === "allowedHtmlTags") return "[]";
+            return undefined;
+        },
+        getJson: () => []
+    }
+}));
+
+describe("CK config", () => {
+    it("maps all languages correctly", async () => {
+        const { buildConfig } = await import("./config.js");
+        for (const locale of LOCALES) {
+            if (locale.contentOnly || locale.devOnly) continue;
+
+            const config = await buildConfig({
+                uiLanguage: locale.id as DISPLAYABLE_LOCALE_IDS,
+                contentLanguage: locale.id,
+                forceGplLicense: false,
+                isClassicEditor: false,
+                templates: []
+            });
+
+            let expectedLocale = locale.id.substring(0, 2);
+            if (expectedLocale === "cn") expectedLocale = "zh";
+            if (expectedLocale === "tw") expectedLocale = "zh-tw";
+
+            if (locale.id !== "en") {
+                expect((config.language as any).ui).toMatch(new RegExp(`^${expectedLocale}`));
+                expect(config.translations, locale.id).toBeDefined();
+                expect(config.translations, locale.id).toHaveLength(2);
+            }
+        }
+    });
+});