import { accountHistory, ledgerRange } from './investment-sync-plan';

// Missing opening dates must not silently narrow the reported history boundary.
describe('account history boundaries', () => {
  const now = new Date('2026-09-25T12:00:00Z');
  const accounts = [{ accountId: 'a', openedOn: null }];

  it('retains the unknown opening boundary for history and instrument ledger', () => {
    expect(accountHistory(accounts, now)[0].from.toISOString()).toBe(
      '1970-01-01T00:00:00.000Z',
    );
    expect(
      ledgerRange(undefined, undefined, 'uid', accounts, now).from.toISOString(),
    ).toBe('1970-01-01T00:00:00.000Z');
  });
});