watch_recursive test is not deterministic

[jimmycuadra]

Some time in the last few commits, the watch_recursive integration test has started hanging (never completing) indicating a race condition. I'm not sure whether it was from a change to the library or an update of a dependency that caused it to start doing this, so I'm not sure of the root cause. Needs to be investigated.

[jimmycuadra]

Update: I added a quick hack using sleep just to get the build passing again. I'll leave this issue open to remind me (or someone who'd like to help) to find a better way of testing this deterministically.