Merge pull request #272 from seans3/cast-provider-interface

Verifies interfaces Provider and ManifestReader are satisfied

pkg/manifestreader/path.go

@@ -9,6 +9,9 @@ import (
 	"sigs.k8s.io/kustomize/kyaml/kio/kioutil"
 )
 
+// PathManifestReader implements ManifestReader interface.
+var _ ManifestReader = &PathManifestReader{}
+
 // PathManifestReader reads manifests from the provided path
 // and returns them as Info objects. The returned Infos will not have
 // client or mapping set.

pkg/manifestreader/stream.go

@@ -11,6 +11,9 @@ import (
 	"sigs.k8s.io/kustomize/kyaml/kio/kioutil"
 )
 
+// StreamManifestReader implements ManifestReader interface.
+var _ ManifestReader = &StreamManifestReader{}
+
 // StreamManifestReader reads manifest from the provided io.Reader
 // and returns them as Info objects. The returned Infos will not have
 // client or mapping set.

pkg/provider/provider.go

@@ -12,6 +12,9 @@ import (
 	"sigs.k8s.io/cli-utils/pkg/manifestreader"
 )
 
+// InventoryProvider implements the Provider interface.
+var _ Provider = &InventoryProvider{}
+
 // Provider is an interface which wraps the kubectl factory and
 // the inventory client.
 type Provider interface {