import { describe, expect, test } from "bun:test";

import { CURRENT_POLICY_EPOCH, isStaleEpoch } from "../policy.js";

describe("policy epoch", () => {
  test("CURRENT_POLICY_EPOCH is 1", () => {
    expect(CURRENT_POLICY_EPOCH).toBe(1);
  });

  test("epoch equal to current is not stale", () => {
    expect(isStaleEpoch(CURRENT_POLICY_EPOCH)).toBe(false);
  });

  test("epoch greater than current is not stale", () => {
    expect(isStaleEpoch(CURRENT_POLICY_EPOCH + 1)).toBe(false);
  });

  test("epoch less than current is stale", () => {
    expect(isStaleEpoch(CURRENT_POLICY_EPOCH - 1)).toBe(true);
  });

  test("epoch 0 is stale", () => {
    expect(isStaleEpoch(0)).toBe(true);
  });

  test("negative epoch is stale", () => {
    expect(isStaleEpoch(-1)).toBe(true);
  });
});