diff --git a/tests/unit/ui-store.test.ts b/tests/unit/ui-store.test.ts
new file mode 100644
index 0000000..bd0bc51
--- /dev/null
+++ b/tests/unit/ui-store.test.ts
@@ -0,0 +1,28 @@
+import { beforeEach, describe, expect, it } from "vitest";
+import { useUiStore } from "@/stores/ui-store";
+
+describe("ui store", () => {
+  beforeEach(() => {
+    useUiStore.setState({
+      sidebarCollapsed: false,
+      commandOpen: false,
+      favorites: ["/files"],
+      recent: [],
+      density: "compact",
+      theme: "light",
+    });
+  });
+
+  it("remembers routes without duplicates", () => {
+    useUiStore.getState().rememberRoute("/dashboard");
+    useUiStore.getState().rememberRoute("/files");
+    useUiStore.getState().rememberRoute("/dashboard");
+
+    expect(useUiStore.getState().recent.slice(0, 2)).toEqual(["/dashboard", "/files"]);
+  });
+
+  it("toggles favorites", () => {
+    useUiStore.getState().toggleFavorite("/files");
+    expect(useUiStore.getState().favorites).not.toContain("/files");
+  });
+});