Add test in State.

.circleci/config.yml

@@ -14,7 +14,7 @@ jobs:
           command: |
             go get -u github.com/golang/dep/cmd/dep
             dep ensure
-            go test -coverprofile=coverage.txt -covermode=atomic -p 1 . ./worker ./cli
+            go test -coverprofile=coverage.txt -covermode=atomic -p 1 . ./worker ./cli ./State
             bash <(curl -s https://codecov.io/bash)
   docker:
     docker: