expectedResult: true,
	}, {
		name: "valid namespace",
		config: eventratelimitapi.Configuration{
			Limits: []eventratelimitapi.Limit{{
				Type:      "Namespace",
				Burst:     10,
				QPS:       2,
				CacheSize: 100,
			}},
		},
		expectedResult: true,
	}, {
		name: "valid user",
		config: eventratelimitapi.Configuration{
			Limits: []eventratelimitapi.Limit{{
				Type:      "User",
				Burst:     10,

import (
	"k8s.io/apimachinery/pkg/util/validation/field"

	eventratelimitapi "k8s.io/kubernetes/plugin/pkg/admission/eventratelimit/apis/eventratelimit"
)

var limitTypes = map[eventratelimitapi.LimitType]bool{
	eventratelimitapi.ServerLimitType:          true,
	eventratelimitapi.NamespaceLimitType:       true,
	eventratelimitapi.UserLimitType:            true,
	eventratelimitapi.SourceAndObjectLimitType: true,
}

		cache:              underlyingCache,
	}

	var keyFunc func(admission.Attributes) string
	switch t := config.Type; t {
	case eventratelimitapi.NamespaceLimitType:
		keyFunc = getNamespaceKey
	case eventratelimitapi.UserLimitType:
		keyFunc = getUserKey
	case eventratelimitapi.SourceAndObjectLimitType:
		keyFunc = getSourceAndObjectKey
	default:
		return nil, fmt.Errorf("unknown event rate limit type: %v", t)
	}

			config := &eventratelimitapi.Configuration{}
			if tc.serverBurst > 0 {
				serverLimit := eventratelimitapi.Limit{
					Type:  eventratelimitapi.ServerLimitType,
					QPS:   qps,
					Burst: tc.serverBurst,
				}
				config.Limits = append(config.Limits, serverLimit)
			}
			if tc.namespaceBurst > 0 {
				namespaceLimit := eventratelimitapi.Limit{

}

// LoadConfiguration loads the provided configuration.
func LoadConfiguration(config io.Reader) (*eventratelimitapi.Configuration, error) {
	// if no config is provided, return a default configuration
	if config == nil {
		externalConfig := &eventratelimitv1alpha1.Configuration{}
		scheme.Default(externalConfig)
		internalConfig := &eventratelimitapi.Configuration{}
		if err := scheme.Convert(externalConfig, internalConfig, nil); err != nil {

	apierrors "k8s.io/apimachinery/pkg/api/errors"
	utilerrors "k8s.io/apimachinery/pkg/util/errors"
	"k8s.io/apiserver/pkg/admission"
	"k8s.io/client-go/util/flowcontrol"
	api "k8s.io/kubernetes/pkg/apis/core"
	eventratelimitapi "k8s.io/kubernetes/plugin/pkg/admission/eventratelimit/apis/eventratelimit"
	"k8s.io/kubernetes/plugin/pkg/admission/eventratelimit/apis/eventratelimit/validation"
	"k8s.io/utils/clock"
)