Mocking Date

Vitest comes with mockdate package that lets you easily manipulate system date in your tests.

All useful methods are located on vi object that you can import from vitest package or access globally, if you have global config enabled.

mockCurrentDate

Type: (date: string | number | Date) => void

Sets current date to the one that was passed. All Date calls will return this date.

Useful if you need to test anything that depends on the current date - for example luxon calls inside your code.

const date = new Date(1998, 11, 19)

vi.mockCurrentDate(date)

expect(Date.now()).toBe(date.valueOf())

getMockedDate

Type: () => string | number | Date

Returns mocked current date that was set using mockCurrentDate. If date is not mocked, will return null.

restoreCurrentDate

Type: () => void

Restores Date back to its native implementation.

Mocking Requests