Generate mocks for image and image index (#453)

Author: glyn

Gopkg.lock

@@ -1,6 +1,7 @@
-# Used for deep copy code generation and ko publish tests.
+# Used for deep copy and mock code generation and ko publish tests.
 required = [
   "k8s.io/code-generator/cmd/deepcopy-gen",
+  "github.com/maxbrunsfeld/counterfeiter",
 ]
 
 [prune]

Gopkg.toml

@@ -28,4 +28,5 @@ export GOPATH=$(go env GOPATH)
 export PATH="${GOPATH}/bin:${PATH}"
 
 go install ./vendor/k8s.io/code-generator/cmd/deepcopy-gen
+go install ./vendor/github.com/maxbrunsfeld/counterfeiter
 go generate ./...