wave2_escrow_invariants.test.ts

/**
 * Wave 2 Test Suite: Milestone Settlement and Dispute Invariant Specs
 */

describe('Lily Contracts Escrow Invariant Verification (Wave 2)', () => {
  it('should calculate accurate basis point fee splits without precision loss', () => {
    const calculateFee = (amountWei: bigint, feeBps: bigint): bigint => {
      return (amountWei * feeBps) / 10000n;
    };

    const payout = 1000000000000000000n; // 1 ETH in Wei
    const feeBps = 250n; // 2.5%
    const fee = calculateFee(payout, feeBps);
    const netPayout = payout - fee;

    expect(fee).toBe(25000000000000000n);
    expect(netPayout).toBe(975000000000000000n);
    expect(netPayout + fee).toBe(payout);
  });

  it('should ensure dispute challenge period cannot be set to zero', () => {
    const MIN_DISPUTE_PERIOD = 86400; // 24 hours in seconds
    const validateDisputePeriod = (seconds: number): boolean => {
      return seconds >= MIN_DISPUTE_PERIOD;
    };

    expect(validateDisputePeriod(0)).toBe(false);
    expect(validateDisputePeriod(3600)).toBe(false);
    expect(validateDisputePeriod(86400)).toBe(true);
    expect(validateDisputePeriod(172800)).toBe(true);
  });
});