fix(csr): preserve translations across navigation

2026-08-15 12:26:01 +05:30
parent f88dd47408
commit 52b3e6d378
4 changed files with 53 additions and 2 deletions
@@ -161,6 +161,36 @@ test("synchronizes and rebinds i18n data during client navigation", async () =>
  expect(boundRoot).toBe(win.document.getElementById("app"));
 });

+test("preserves same-language translations when an incoming navigation catalog is partial", async () => {
+  install(`<div id="app"><a href="/about" id="lnk">About</a></div>`);
+  win.__wrnI18n = {
+    lang: "en",
+    messages: { navigation: { home: "Home" }, footer: { contact: "Contact" } },
+    fallbackMessages: {},
+  };
+  win.__wrnLang = {
+    bind: (root: ParentNode) => {
+      root.querySelectorAll("[data-t]").forEach((node) => {
+        const parts = String(node.getAttribute("data-t") || "").split(".");
+        let value: any = win.__wrnI18n.messages;
+        for (const part of parts) value = value?.[part];
+        node.textContent = typeof value === "string" ? value : node.getAttribute("data-t");
+      });
+    },
+  };
+  nextHtml =
+    `<html lang="en"><body><div id="app"><p data-t="navigation.home">navigation.home</p></div>` +
+    `<script>window.__wrnI18n={"lang":"en","messages":{},"fallbackMessages":{}};</script>` +
+    `</body></html>`;
+
+  win.document.getElementById("lnk").click();
+  await flush();
+
+  expect(win.__wrnI18n.messages.navigation.home).toBe("Home");
+  expect(win.__wrnI18n.messages.footer.contact).toBe("Contact");
+  expect(win.document.querySelector("[data-t]")?.textContent).toBe("Home");
+});
+
 test("unmounts and remounts package runtimes during client navigation", async () => {
  install(
    `<div id="app"><div data-wrnexus-runtime="captcha">Old</div><a href="/next" id="lnk">Next</a></div>`,