diff --git a/internal/discovery/types.go b/internal/discovery/types.go
index 9d31176ed9..9337e2c7ae 100644
--- a/internal/discovery/types.go
+++ b/internal/discovery/types.go
@@ -19,6 +19,7 @@ import (
 	"k8s.io/apimachinery/pkg/runtime/schema"
 )
 
+// GroupVersionKindPlural is GVK + Plural
 type GroupVersionKindPlural struct {
 	schema.GroupVersionKind
 	Plural string
@@ -28,6 +29,7 @@ func (g GroupVersionKindPlural) String() string {
 	return fmt.Sprintf("%s/%s, Kind=%s, Plural=%s", g.Group, g.Version, g.Kind, g.Plural)
 }
 
+// KindPlural is Kind + Plural
 type KindPlural struct {
 	Kind   string
 	Plural string
diff --git a/pkg/customresourcestate/config.go b/pkg/customresourcestate/config.go
index 174694c865..101c3ee8e0 100644
--- a/pkg/customresourcestate/config.go
+++ b/pkg/customresourcestate/config.go
@@ -165,6 +165,7 @@ type ConfigDecoder interface {
 	Decode(v interface{}) (err error)
 }
 
+// GVKToGVKP interface implements ResolveGVKToGVKPs
 type GVKToGVKP interface {
 	ResolveGVKToGVKPs(gvk schema.GroupVersionKind) (resolvedGVKPs []discovery.GroupVersionKindPlural, err error)
 }
diff --git a/tests/e2e/discovery_test.go b/tests/e2e/discovery_test.go
index 144e2c05d7..225792bfdc 100644
--- a/tests/e2e/discovery_test.go
+++ b/tests/e2e/discovery_test.go
@@ -29,12 +29,12 @@ import (
 	"k8s.io/klog/v2"
 
 	"k8s.io/kube-state-metrics/v2/internal"
-	"k8s.io/kube-state-metrics/v2/pkg/customresourcestate"
 	"k8s.io/kube-state-metrics/v2/pkg/options"
 )
 
 // PopulateTimeout is the timeout on populating the cache for the first time.
 const PopulateTimeout = 10 * time.Second
+const Interval = 3 * time.Second
 
 func TestVariableVKsDiscoveryAndResolution(t *testing.T) {
 
@@ -140,7 +140,8 @@ func TestVariableVKsDiscoveryAndResolution(t *testing.T) {
 	// Wait for the metric to be available.
 	ch := make(chan bool, 1)
 	klog.InfoS("waiting for metrics to become available")
-	err = wait.PollUntilContextTimeout(context.TODO(), customresourcestate.Interval, PopulateTimeout, true, func(ctx context.Context) (bool, error) {
+
+	err = wait.PollUntilContextTimeout(context.TODO(), Interval, PopulateTimeout, true, func(ctx context.Context) (bool, error) {
 		out, err := exec.Command("curl", "localhost:8080/metrics").Output()
 		if err != nil {
 			return false, err