Add test for stats resource route loader

app/routes/__tests__/resources.stats.test.tsx

@@ -0,0 +1,38 @@
+import { describe, test, expect, vi } from "vitest";
+import { loader } from "../resources.stats";
+
+describe("resources.stats loader", () => {
+    test("returns formatted stats from analytics engine", async () => {
+        const mockGetCounts = vi.fn().mockResolvedValue({
+            views: 1000,
+            visits: 500,
+            visitors: 250,
+        });
+
+        const context = {
+            analyticsEngine: {
+                getCounts: mockGetCounts,
+            },
+        };
+
+        const request = new Request(
+            "https://example.com/resources/stats?site=test-site&interval=24h&timezone=UTC",
+        );
+
+        const response = await loader({ context, request } as any);
+        const data = await response.json();
+
+        expect(mockGetCounts).toHaveBeenCalledWith(
+            "test-site",
+            "24h",
+            "UTC",
+            expect.any(Object),
+        );
+
+        expect(data).toEqual({
+            views: 1000,
+            visits: 500,
+            visitors: 250,
+        });
+    });
+});