kotlin-node/node.test/MockTimers/setTime

setTime

You can use the .setTime() method to manually move the mocked date to another time. This method only accepts a positive integer. Note: This method will execute any mocked timers that are in the past from the new time. In the below example we are setting a new time for the mocked date.

import assert from 'node:assert';
import { test } from 'node:test';
test('sets the time of a date object', (context) => {
  // Optionally choose what to mock
  context.mock.timers.enable({ apis: ['Date'], now: 100 });
  assert.strictEqual(Date.now(), 100);
  // Advance in time will also advance the date
  context.mock.timers.setTime(1000);
  context.mock.timers.tick(200);
  assert.strictEqual(Date.now(), 1200);
});