test: add widget proxy tests (batch 1)

src/widgets/npm/proxy.test.js

@@ -0,0 +1,114 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import createMockRes from "test-utils/create-mock-res";
+
+const { httpProxy, getServiceWidget, cache, logger } = vi.hoisted(() => {
+  const store = new Map();
+
+  return {
+    httpProxy: vi.fn(),
+    getServiceWidget: vi.fn(),
+    cache: {
+      get: vi.fn((k) => store.get(k)),
+      put: vi.fn((k, v) => store.set(k, v)),
+      del: vi.fn((k) => store.delete(k)),
+      _reset: () => store.clear(),
+    },
+    logger: {
+      debug: vi.fn(),
+      error: vi.fn(),
+    },
+  };
+});
+
+vi.mock("utils/logger", () => ({
+  default: () => logger,
+}));
+
+vi.mock("utils/config/service-helpers", () => ({
+  default: getServiceWidget,
+}));
+
+vi.mock("utils/proxy/http", () => ({
+  httpProxy,
+}));
+
+vi.mock("memory-cache", () => ({
+  default: cache,
+  ...cache,
+}));
+
+vi.mock("widgets/widgets", () => ({
+  default: {
+    npm: {
+      api: "{url}/{endpoint}",
+    },
+  },
+}));
+
+import npmProxyHandler from "./proxy";
+
+describe("widgets/npm/proxy", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    cache._reset();
+  });
+
+  it("logs in when token is missing and uses Bearer token for requests", async () => {
+    getServiceWidget.mockResolvedValue({
+      type: "npm",
+      url: "http://npm",
+      username: "u",
+      password: "p",
+    });
+
+    httpProxy
+      .mockResolvedValueOnce([
+        200,
+        "application/json",
+        Buffer.from(JSON.stringify({ token: "t1", expires: new Date(Date.now() + 60_000).toISOString() })),
+      ])
+      .mockResolvedValueOnce([200, "application/json", Buffer.from("data")]);
+
+    const req = { query: { group: "g", service: "svc", endpoint: "api/v1/stats", index: "0" } };
+    const res = createMockRes();
+
+    await npmProxyHandler(req, res);
+
+    expect(httpProxy).toHaveBeenCalledTimes(2);
+    expect(httpProxy.mock.calls[0][0]).toBe("http://npm/api/tokens");
+    expect(httpProxy.mock.calls[1][1].headers.Authorization).toBe("Bearer t1");
+    expect(res.body).toEqual(Buffer.from("data"));
+  });
+
+  it("retries after a 403 response by clearing cache and logging in again", async () => {
+    cache.put("npmProxyHandler__token.svc", "old");
+
+    getServiceWidget.mockResolvedValue({
+      type: "npm",
+      url: "http://npm",
+      username: "u",
+      password: "p",
+    });
+
+    httpProxy
+      .mockResolvedValueOnce([403, "application/json", Buffer.from("nope")])
+      .mockResolvedValueOnce([
+        200,
+        "application/json",
+        Buffer.from(JSON.stringify({ token: "new", expires: new Date(Date.now() + 60_000).toISOString() })),
+      ])
+      .mockResolvedValueOnce([200, "application/json", Buffer.from("ok")]);
+
+    const req = { query: { group: "g", service: "svc", endpoint: "api/v1/stats", index: "0" } };
+    const res = createMockRes();
+
+    await npmProxyHandler(req, res);
+
+    expect(httpProxy).toHaveBeenCalledTimes(3);
+    expect(httpProxy.mock.calls[0][1].headers.Authorization).toBe("Bearer old");
+    expect(httpProxy.mock.calls[1][0]).toBe("http://npm/api/tokens");
+    expect(httpProxy.mock.calls[2][1].headers.Authorization).toBe("Bearer new");
+    expect(res.body).toEqual(Buffer.from("ok"));
+  });
+});