Refactor unit test to handle different timing scenarios (#2328)
Refactor unit test to handle different timing scenarios (#2328)

* Refactor skipped seq test to handle different timing scenarios

* Ensure termination of changes feed

ceejatec/sync_gateway,ceejatec/sync_gateway,ceejatec/sync_gateway,couchbaselabs/sync_gateway,ceejatec/sync_gateway,tophatch/sync_gateway,couchbaselabs/sync_gateway,tophatch/sync_gateway,couchbaselabs/sync_gateway,tophatch/sync_gateway,tophatch/sync_gateway,couchbaselabs/sync_gateway