Add core unit tests (config, highlights, proxy handlers)

src/pages/api/services/proxy.test.js

@@ -0,0 +1,79 @@
+import { describe, expect, it, vi } from "vitest";
+
+const { getServiceWidget } = vi.hoisted(() => ({ getServiceWidget: vi.fn() }));
+
+vi.mock("utils/logger", () => ({
+  default: () => ({ debug: vi.fn(), error: vi.fn() }),
+}));
+
+vi.mock("utils/config/service-helpers", () => ({ default: getServiceWidget }));
+
+const handlerFn = vi.hoisted(() => ({ handler: vi.fn() }));
+vi.mock("utils/proxy/handlers/generic", () => ({ default: handlerFn.handler }));
+
+// Calendar proxy is only used for an exception; keep it stubbed.
+vi.mock("widgets/calendar/proxy", () => ({ default: vi.fn() }));
+
+// Provide a minimal widget registry for mapping tests.
+vi.mock("widgets/widgets", () => ({
+  default: {
+    linkwarden: {
+      api: "{url}/api/v1/{endpoint}",
+      mappings: {
+        collections: { endpoint: "collections" },
+      },
+    },
+  },
+}));
+
+import servicesProxy from "./proxy";
+
+function createMockRes() {
+  const res = {
+    statusCode: undefined,
+    body: undefined,
+    status: (code) => {
+      res.statusCode = code;
+      return res;
+    },
+    json: (data) => {
+      res.body = data;
+      return res;
+    },
+    send: (data) => {
+      res.body = data;
+      return res;
+    },
+    end: () => res,
+    setHeader: vi.fn(),
+  };
+  return res;
+}
+
+describe("pages/api/services/proxy", () => {
+  it("maps opaque endpoints using widget.mappings and calls the handler", async () => {
+    getServiceWidget.mockResolvedValue({ type: "linkwarden" });
+    handlerFn.handler.mockImplementation(async (req, res) => res.status(200).json({ endpoint: req.query.endpoint }));
+
+    const req = { method: "GET", query: { group: "g", service: "s", index: "0", endpoint: "collections" } };
+    const res = createMockRes();
+
+    await servicesProxy(req, res);
+
+    expect(handlerFn.handler).toHaveBeenCalled();
+    expect(res.statusCode).toBe(200);
+    expect(res.body).toEqual({ endpoint: "collections" });
+  });
+
+  it("returns 403 for unsupported endpoint mapping", async () => {
+    getServiceWidget.mockResolvedValue({ type: "linkwarden" });
+
+    const req = { method: "GET", query: { group: "g", service: "s", index: "0", endpoint: "nope" } };
+    const res = createMockRes();
+
+    await servicesProxy(req, res);
+
+    expect(res.statusCode).toBe(403);
+    expect(res.body).toEqual({ error: "Unsupported service endpoint" });
+  });
+});