dates.test.js

import { calculateRevisionDates } from "./dates.js";
import assert from "node:assert";
import test from "node:test";

test("revision dates are correct", () => {
    const outcome = calculateRevisionDates("2026-06-11")
    assert.deepEqual(outcome, [
      "2026-06-18",
      "2026-07-11",
      "2026-09-11",
      "2026-12-11",
      "2027-06-11",
    ]);
}); 

test("revision dates are correct over DST(acrossing winter time)", () => {
  const outcome = calculateRevisionDates("2026-10-17");
  assert.deepEqual(outcome, [
    "2026-10-24" ,
    "2026-11-17",
    "2027-01-17",
    "2027-04-17",
    "2027-10-17"
  ]);
}); 

test("revision dates are correct over DST(acrossing summer time)", () => {
  const outcome = calculateRevisionDates("2027-03-26");
  assert.deepEqual(outcome, [
    "2027-04-02",
    "2027-04-26",
    "2027-06-26",
    "2027-09-26",
    "2028-03-26"
  ]);
});