diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/api_enablement_test.go b/staging/src/k8s.io/apiserver/pkg/server/options/api_enablement_test.go
new file mode 100644
index 00000000000..e08fcd2a1fb
--- /dev/null
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/api_enablement_test.go
@@ -0,0 +1,84 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package options
+
+import (
+	"strings"
+	"testing"
+
+	utilerrors "k8s.io/apimachinery/pkg/util/errors"
+	utilflag "k8s.io/apiserver/pkg/util/flag"
+)
+
+type fakeGroupRegisty struct{}
+
+func (f fakeGroupRegisty) IsGroupRegistered(group string) bool {
+	return group == "apiregistration.k8s.io"
+}
+
+func TestAPIEnablementOptionsValidate(t *testing.T) {
+	testCases := []struct {
+		name        string
+		testOptions *APIEnablementOptions
+		expectErr   string
+	}{
+		{
+			name: "test when options is nil",
+		},
+		{
+			name: "test when invalid key with only api/all=false",
+			testOptions: &APIEnablementOptions{
+				RuntimeConfig: utilflag.ConfigurationMap{"api/all": "false"},
+			},
+			expectErr: "invalid key with only api/all=false",
+		},
+		{
+			name: "test when ConfigurationMap key is invalid",
+			testOptions: &APIEnablementOptions{
+				RuntimeConfig: utilflag.ConfigurationMap{"apiall": "false"},
+			},
+			expectErr: "runtime-config invalid key",
+		},
+		{
+			name: "test when unknown api groups",
+			testOptions: &APIEnablementOptions{
+				RuntimeConfig: utilflag.ConfigurationMap{"api/v1": "true"},
+			},
+			expectErr: "unknown api groups",
+		},
+		{
+			name: "test when valid api groups",
+			testOptions: &APIEnablementOptions{
+				RuntimeConfig: utilflag.ConfigurationMap{"apiregistration.k8s.io/v1beta1": "true"},
+			},
+		},
+	}
+	testGroupRegisty := fakeGroupRegisty{}
+
+	for _, testcase := range testCases {
+		t.Run(testcase.name, func(t *testing.T) {
+			errs := testcase.testOptions.Validate(testGroupRegisty)
+			if len(testcase.expectErr) != 0 && !strings.Contains(utilerrors.NewAggregate(errs).Error(), testcase.expectErr) {
+				t.Errorf("got err: %v, expected err: %s", errs, testcase.expectErr)
+			}
+
+			if len(testcase.expectErr) == 0 && len(errs) != 0 {
+				t.Errorf("got err: %s, expected err nil", errs)
+			}
+		})
+	}
+}