Add .stop method

[caub]

No description provided.

[caub]

Hi @mattpker , can we merge this simple PR? just adding .stop(), useful for tests teardowns

[markstos]

@caub How does this help with test teardown? What happens to the tests if ,stop() is not called?

[caub]

@markstos it helps speeding up tests teardown, it also works without, but test are longer because of the remaining interval

[markstos]

@caub Is that because the event loop is blocked until the interval expires?

[caub]

Yes I remember so, we refactored our tests so that we don't start is-master to avoid that issue

So it's as you like, no longer something annoying for us

[markstos]

We have had trouble with our tests blocking the event loop-- maybe this was it! How did you realize the problem was caused by is-master?

[caub]

probably with https://www.npmjs.com/package/why-is-node-running