Resgate disconnect tests #38
Description
Issue
Unit tests should be added to cover ResClient's behavior on unexpected disconnects.
Scope
The tests should describe unexpected disconnect, and test that:
- it does nothing if no subscriptions exists and no requests are pending
- it connects after an unexpected disconnect on first subscription
- it connects after an unexpected disconnect on first call
- it directly attempts to reconnect and resubscribe to existing subscriptions
- it rejects pending requests with a system.connectionError error