import {
  tbankSourceNeedsRefresh,
  tbankSourceTtlMs,
} from './tbank-source.policy';

describe('mutable source freshness', () => {
  it.each(Object.keys(tbankSourceTtlMs) as (keyof typeof tbankSourceTtlMs)[])(
    '%s expires at its boundary without changing source time',
    (source) => {
      const fetchedAt = new Date('2026-09-01Z');
      // eslint-disable-next-line security/detect-object-injection -- The key comes from the local source-policy test table.
      const ttl = tbankSourceTtlMs[source];
      expect(
        tbankSourceNeedsRefresh(
          source,
          fetchedAt,
          new Date(fetchedAt.valueOf() + ttl - 1000),
        ),
      ).toBe(false);
      expect(
        tbankSourceNeedsRefresh(
          source,
          fetchedAt,
          new Date(fetchedAt.valueOf() + ttl),
        ),
      ).toBe(true);
      expect(tbankSourceNeedsRefresh(source, fetchedAt, fetchedAt, true)).toBe(
        true,
      );
      expect(tbankSourceNeedsRefresh(source, null, fetchedAt)).toBe(true);
      expect(fetchedAt.toISOString()).toBe('2026-09-01T00:00:00.000Z');
    },
  );
});