isInRange

1/**
2 * Checks if a date is within a given range (inclusive).
3 *
4 * @param date - The date to check.
5 * @param start - Start of the range.
6 * @param end - End of the range.
7 * @returns True if the date is between start and end, inclusive.
8 */
9export function isInRange(date: Date, start: Date, end: Date): boolean {
10  const time = date.getTime();
11
12  return time >= start.getTime() && time <= end.getTime();
13}

1test('isInRange - returns true for a date inside the range', () => {
2  const start = new Date('2024-01-01');
3  const end = new Date('2024-12-31');
4  const date = new Date('2024-06-15');
5  expect(isInRange(date, start, end)).toBe(true);
6});
7
8test('isInRange - returns true for start boundary', () => {
9  const start = new Date('2024-01-01');
10  const end = new Date('2024-12-31');
11  expect(isInRange(start, start, end)).toBe(true);
12});
13
14test('isInRange - returns true for end boundary', () => {
15  const start = new Date('2024-01-01');
16  const end = new Date('2024-12-31');
17  expect(isInRange(end, start, end)).toBe(true);
18});
19
20test('isInRange - returns false for date before range', () => {
21  const start = new Date('2024-01-01');
22  const end = new Date('2024-12-31');
23  const date = new Date('2023-12-31');
24  expect(isInRange(date, start, end)).toBe(false);
25});
26
27test('isInRange - returns false for date after range', () => {
28  const start = new Date('2024-01-01');
29  const end = new Date('2024-12-31');
30  const date = new Date('2025-01-01');
31  expect(isInRange(date, start, end)).toBe(false);
32});