remove ExpandCSIVolume feature gate

pkg/api/persistentvolume/util_test.go

@@ -1,117 +0,0 @@
-/*
-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 persistentvolume
-
-import (
-	"reflect"
-	"testing"
-
-	"github.com/google/go-cmp/cmp"
-
-	utilfeature "k8s.io/apiserver/pkg/util/feature"
-	featuregatetesting "k8s.io/component-base/featuregate/testing"
-	api "k8s.io/kubernetes/pkg/apis/core"
-	"k8s.io/kubernetes/pkg/features"
-)
-
-func TestDropDisabledFields(t *testing.T) {
-	secretRef := &api.SecretReference{
-		Name:      "expansion-secret",
-		Namespace: "default",
-	}
-
-	tests := map[string]struct {
-		oldSpec             *api.PersistentVolumeSpec
-		newSpec             *api.PersistentVolumeSpec
-		expectOldSpec       *api.PersistentVolumeSpec
-		expectNewSpec       *api.PersistentVolumeSpec
-		csiExpansionEnabled bool
-	}{
-		"disabled csi expansion clears secrets": {
-			csiExpansionEnabled: false,
-			newSpec:             specWithCSISecrets(secretRef),
-			expectNewSpec:       specWithCSISecrets(nil),
-			oldSpec:             nil,
-			expectOldSpec:       nil,
-		},
-		"enabled csi expansion preserve secrets": {
-			csiExpansionEnabled: true,
-			newSpec:             specWithCSISecrets(secretRef),
-			expectNewSpec:       specWithCSISecrets(secretRef),
-			oldSpec:             nil,
-			expectOldSpec:       nil,
-		},
-		"enabled csi expansion preserve secrets when both old and new have it": {
-			csiExpansionEnabled: true,
-			newSpec:             specWithCSISecrets(secretRef),
-			expectNewSpec:       specWithCSISecrets(secretRef),
-			oldSpec:             specWithCSISecrets(secretRef),
-			expectOldSpec:       specWithCSISecrets(secretRef),
-		},
-		"disabled csi expansion old pv had secrets": {
-			csiExpansionEnabled: false,
-			newSpec:             specWithCSISecrets(secretRef),
-			expectNewSpec:       specWithCSISecrets(secretRef),
-			oldSpec:             specWithCSISecrets(secretRef),
-			expectOldSpec:       specWithCSISecrets(secretRef),
-		},
-		"enabled csi expansion preserves secrets when old pv did not had secrets": {
-			csiExpansionEnabled: true,
-			newSpec:             specWithCSISecrets(secretRef),
-			expectNewSpec:       specWithCSISecrets(secretRef),
-			oldSpec:             specWithCSISecrets(nil),
-			expectOldSpec:       specWithCSISecrets(nil),
-		},
-		"disabled csi expansion clears secrets when old pv did not had secrets": {
-			csiExpansionEnabled: false,
-			newSpec:             specWithCSISecrets(secretRef),
-			expectNewSpec:       specWithCSISecrets(nil),
-			oldSpec:             specWithCSISecrets(nil),
-			expectOldSpec:       specWithCSISecrets(nil),
-		},
-	}
-
-	for name, tc := range tests {
-		t.Run(name, func(t *testing.T) {
-			defer featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.ExpandCSIVolumes, tc.csiExpansionEnabled)()
-
-			DropDisabledFields(tc.newSpec, tc.oldSpec)
-			if !reflect.DeepEqual(tc.newSpec, tc.expectNewSpec) {
-				t.Error(cmp.Diff(tc.newSpec, tc.expectNewSpec))
-			}
-			if !reflect.DeepEqual(tc.oldSpec, tc.expectOldSpec) {
-				t.Error(cmp.Diff(tc.oldSpec, tc.expectOldSpec))
-			}
-		})
-	}
-}
-
-func specWithCSISecrets(secret *api.SecretReference) *api.PersistentVolumeSpec {
-	pvSpec := &api.PersistentVolumeSpec{
-		PersistentVolumeSource: api.PersistentVolumeSource{
-			CSI: &api.CSIPersistentVolumeSource{
-				Driver:       "com.google.gcepd",
-				VolumeHandle: "foobar",
-			},
-		},
-	}
-
-	if secret != nil {
-		pvSpec.CSI.ControllerExpandSecretRef = secret
-	}
-	return pvSpec
-}