Components using Date objects produce different snapshots in different timezones

Question

I\'m using Enzyme with enzyme-to-json to do Jest snapshot testing of my React components. I\'m testing shallow snapshots of a DateRange component that renders a

Answer 1

I ended up getting around this by mocking the toLocaleString (or whatever toString method you are using) prototype. Using sinon I did:

var toLocaleString;

beforeAll(() => {
    toLocaleString = sinon.stub(Date.prototype, 'toLocaleString', () => 'fake time')
})

afterAll(() => {
    toLocaleString.restore()
})

This way if you are generating strings straight from a Date object, you're still OK.