delay

delay.test.ts
import { delay } from "../../utility/function/delay";
​
describe('delay', () => {
  test('delay should fire the callback after wait ms', () => {
    const received = function () {
      expect(true).toBeTruthy();
    }
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    delay(received, 500);
  });
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  test('delay should receive params that passed', () => {
    const received = function (name: string, age: number) {
      expect(name).toBe('ddzy');
      expect(age).toBe(21);
    }
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    delay(received, 1000, 'ddzy', 21);
  });
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  test('delay should return the timeout id', () => {
    const received = function () {
      expect(true).toBeTruthy();
    }
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    const result = delay(received, 1500);
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    expect(typeof result).toBe('number');
  });
});