@variantjs/core/src/__tests__/dates/isToday.test.ts

VariantJS common functions and utilities

import isToday from '../../dates/isToday';

describe('isToday', () => {
  it('determines that is same day for current date', () => {
    const date = new Date();

    expect(isToday(date)).toBe(true);
  });
  it('determines that is same day for a date at the end of the day', () => {
    const date = new Date();
    const today = new Date(date.getFullYear(), date.getMonth(), date.getDate(), 23, 59, 59, 999);

    expect(isToday(today)).toBe(true);
  });

  it('determines that is same day for a date at the start of the day', () => {
    const date = new Date();
    const today = new Date(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0, 0);

    expect(isToday(today)).toBe(true);
  });
});