[WIP] feat: adds tests for name.publish and name.resolve

[alanshaw]

• Adds test which:
  1. creates two nodes
  2. connects them (swarm.connect)
  3. calls name.publish on node0
  4. calls name.resolve(/ipns/${node0.peerid}) on the other

I could do with some advice possibly from the go-ipfs team(?), as step 4 fails with Error: Could not resolve name.. Why might that be?

Also:

• Pulls repeated spawnWithId function into a module
• Updates doc to reflect return value from go-ipfs

[victorb]

Should try to use the new experimental feature for pubsub resolve (but still test the old one as well), but with the flag --enable-namesys-pubsub together with --enable-pubsub-experiment will make publish/resolve a lot faster.

[daviddias]

What's missing here?

[alanshaw]

Just the fact that the tests don't pass and I couldn't figure out why...