Replace gmock, and hand-crafted mocks with counterfeiter

agentclient/generate.go

@@ -0,0 +1,5 @@
+package agentclient
+
+//go:generate go run github.com/maxbrunsfeld/counterfeiter/v6 -generate
+
+//counterfeiter:generate github.com/cloudfoundry/bosh-agent/v2/agentclient.AgentClient

blobstore/blobstore.go

@@ -10,6 +10,10 @@ import (
 	boshuuid "github.com/cloudfoundry/bosh-utils/uuid"
 )
 
+//go:generate go run github.com/maxbrunsfeld/counterfeiter/v6 -generate
+
+//counterfeiter:generate . Blobstore
+
 type Blobstore interface {
 	Get(blobID string) (LocalBlob, error)
 	Add(sourcePath string) (blobID string, err error)

blobstore/blobstore_factory.go

@@ -13,6 +13,8 @@ import (
 	boshuuid "github.com/cloudfoundry/bosh-utils/uuid"
 )
 
+//counterfeiter:generate . Factory
+
 type Factory interface {
 	Create(string, *http.Client) (Blobstore, error)
 }