Performance: use bulk request for docker stats (#7098)

src/__tests__/pages/api/docker/stats.test.js

@@ -0,0 +1,60 @@
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import createMockRes from "test-utils/create-mock-res";
+
+const { getDockerStats, logger } = vi.hoisted(() => ({
+  getDockerStats: vi.fn(),
+  logger: { error: vi.fn() },
+}));
+
+vi.mock("utils/docker/stats", () => ({ getDockerStats }));
+
+vi.mock("utils/logger", () => ({
+  default: () => logger,
+}));
+
+import handler from "pages/api/docker/stats";
+
+describe("pages/api/docker/stats", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it("returns the stats map for the requested server", async () => {
+    getDockerStats.mockResolvedValue({ stats: { app: { cpu: 20, mem: 900, rx: 4, tx: 6 } } });
+
+    const req = { query: { server: "local" } };
+    const res = createMockRes();
+
+    await handler(req, res);
+
+    expect(getDockerStats).toHaveBeenCalledWith("local");
+    expect(res.statusCode).toBe(200);
+    expect(res.body).toEqual({ stats: { app: { cpu: 20, mem: 900, rx: 4, tx: 6 } } });
+  });
+
+  it("returns 500 when the stats lookup reports an error", async () => {
+    getDockerStats.mockResolvedValue({ error: "query failed" });
+
+    const req = { query: { server: "local" } };
+    const res = createMockRes();
+
+    await handler(req, res);
+
+    expect(res.statusCode).toBe(500);
+    expect(res.body).toEqual({ error: "query failed" });
+  });
+
+  it("logs and returns 500 when the stats lookup throws", async () => {
+    getDockerStats.mockRejectedValue(new Error("boom"));
+
+    const req = { query: { server: "local" } };
+    const res = createMockRes();
+
+    await handler(req, res);
+
+    expect(res.statusCode).toBe(500);
+    expect(res.body).toEqual({ error: { message: "boom" } });
+    expect(logger.error).toHaveBeenCalled();
+  });
+});