useMockDateNow.md

elections-cpl.api.hscc.bdpa.org • Docs

---

elections-cpl.api.hscc.bdpa.org / lib/jest-mock-date / useMockDateNow

Function: useMockDateNow()

useMockDateNow(options?): void

Sets up a Jest spy on the Date object's now method such that it returns mockNow or mockDateNowMs (default) rather than the actual date. If you want to restore the mock, you will have to do so manually (or use Jest configuration to do so automatically).

This is useful when testing against/playing with dummy data containing values derived from the current time (i.e. unix epoch).

Parameters

• options?

• options.mockNow?: number

Returns

void

Source

lib/jest-mock-date/index.ts:15