feat(costs): add billing, quota, and budget control plane

server/src/__tests__/quota-windows-service.test.ts

@@ -0,0 +1,56 @@
+import { describe, expect, it, vi, beforeEach, afterEach } from "vitest";
+
+vi.mock("../adapters/registry.js", () => ({
+  listServerAdapters: vi.fn(),
+}));
+
+import { listServerAdapters } from "../adapters/registry.js";
+import { fetchAllQuotaWindows } from "../services/quota-windows.js";
+
+describe("fetchAllQuotaWindows", () => {
+  beforeEach(() => {
+    vi.useFakeTimers();
+  });
+
+  afterEach(() => {
+    vi.useRealTimers();
+    vi.restoreAllMocks();
+  });
+
+  it("returns adapter results without waiting for a slower provider to finish forever", async () => {
+    vi.mocked(listServerAdapters).mockReturnValue([
+      {
+        type: "codex_local",
+        getQuotaWindows: vi.fn().mockResolvedValue({
+          provider: "openai",
+          source: "codex-rpc",
+          ok: true,
+          windows: [{ label: "5h limit", usedPercent: 2, resetsAt: null, valueLabel: null, detail: null }],
+        }),
+      },
+      {
+        type: "claude_local",
+        getQuotaWindows: vi.fn(() => new Promise(() => {})),
+      },
+    ] as never);
+
+    const promise = fetchAllQuotaWindows();
+    await vi.advanceTimersByTimeAsync(20_001);
+    const results = await promise;
+
+    expect(results).toEqual([
+      {
+        provider: "openai",
+        source: "codex-rpc",
+        ok: true,
+        windows: [{ label: "5h limit", usedPercent: 2, resetsAt: null, valueLabel: null, detail: null }],
+      },
+      {
+        provider: "anthropic",
+        ok: false,
+        error: "quota polling timed out after 20s",
+        windows: [],
+      },
+    ]);
+  });
+});