Tests failing intermittently

[bengtan]

Recent failures in friendshare.test.ts:

https://circleci.com/gh/hippware/rn-chat/8801
https://circleci.com/gh/hippware/rn-chat/8805
https://circleci.com/gh/hippware/rn-chat/8807
https://circleci.com/gh/hippware/rn-chat/8808

Output:

* Friend Share › make them friends and share location

    Failed: "waitFor timed out in 10000 milliseconds.

    end sharing location"

      36 |   })
      37 | 
    > 38 |   it('make them friends and share location', async () => {
         |   ^
      39 |     let aliceBobProfile = await alice.loadProfile(bob.username!)
      40 |     const bobAliceProfile = await bob.loadProfile(alice.username!)
      41 |     expect(aliceBobProfile!.isFriend).toBeFalsy()

      at Env.it (node_modules/jest-jasmine2/build/jasmineAsyncInstall.js:89:24)
      at Suite.Object.<anonymous>.describe (__tests__/wocky/friendshare.test.ts:38:3)
      at Object.<anonymous> (__tests__/wocky/friendshare.test.ts:5:1)