import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
const originalEnv = { ...process.env };
describe("Config Module", () => {
beforeEach(() => {
vi.resetModules();
process.env = { ...originalEnv };
if (!process.env.YNAB_ACCESS_TOKEN) {
process.env.YNAB_ACCESS_TOKEN = "test-token-placeholder";
}
});
afterEach(() => {
process.env = { ...originalEnv };
});
it("reloads environment variables on each loadConfig call", async () => {
const { loadConfig } = await import("../config");
process.env.YNAB_ACCESS_TOKEN = "test-token-123";
expect(loadConfig().YNAB_ACCESS_TOKEN).toBe("test-token-123");
process.env.YNAB_ACCESS_TOKEN = "updated-token-456";
expect(loadConfig().YNAB_ACCESS_TOKEN).toBe("updated-token-456");
});
it("throws a detailed error if YNAB_ACCESS_TOKEN is missing", async () => {
const { loadConfig } = await import("../config");
const env = { ...process.env };
env.YNAB_ACCESS_TOKEN = undefined;
expect.assertions(2);
try {
loadConfig(env);
} catch (error) {
expect((error as { name?: string }).name).toBe("ValidationError");
expect((error as Error).message).toMatch(/YNAB_ACCESS_TOKEN/i);
}
});
it("parses LOG_LEVEL and defaults to info", async () => {
const { loadConfig } = await import("../config");
const envWithLog = {
...process.env,
YNAB_ACCESS_TOKEN: "token",
LOG_LEVEL: "debug",
};
expect(loadConfig(envWithLog).LOG_LEVEL).toBe("debug");
const envWithoutLog = { ...envWithLog };
envWithoutLog.LOG_LEVEL = undefined; // Ensure LOG_LEVEL is not set
expect(loadConfig(envWithoutLog).LOG_LEVEL).toBe("info");
});
});
