import { describe, it, expect, beforeEach, vi } from "vitest";
import { YNABClient } from "../client.js";
import { mockBudget, mockTransaction, createApiResponse } from "./fixtures.js";
const mockFetch = vi.fn();
vi.stubGlobal("fetch", mockFetch);
describe("YNABClient", () => {
let client: YNABClient;
beforeEach(() => {
mockFetch.mockReset();
client = new YNABClient("test-token");
});
describe("listBudgets", () => {
it("returns budgets on success", async () => {
mockFetch.mockResolvedValueOnce({
ok: true,
json: () => Promise.resolve(createApiResponse({ budgets: [mockBudget] })),
});
const result = await client.listBudgets();
expect(result.budgets).toHaveLength(1);
expect(result.budgets[0].id).toBe("budget-123");
});
it("throws on API error", async () => {
mockFetch.mockResolvedValueOnce({
ok: false,
status: 401,
text: () => Promise.resolve("Unauthorized"),
});
await expect(client.listBudgets()).rejects.toThrow("YNAB API error (401)");
});
});
describe("listTransactions", () => {
it("filters by category_id client-side", async () => {
const tx1 = { ...mockTransaction, category_id: "cat-1" };
const tx2 = { ...mockTransaction, id: "tx-2", category_id: "cat-2" };
mockFetch.mockResolvedValueOnce({
ok: true,
json: () => Promise.resolve(createApiResponse({ transactions: [tx1, tx2] })),
});
const result = await client.listTransactions("budget-123", { categoryId: "cat-1" });
expect(result.transactions).toHaveLength(1);
expect(result.transactions[0].category_id).toBe("cat-1");
});
});
});
