Add tests to ensure storage feature gate changes don't escape packages

pkg/api/persistentvolumeclaim/BUILD

@@ -32,7 +32,10 @@ filegroup(
 
 go_test(
     name = "go_default_test",
-    srcs = ["util_test.go"],
+    srcs = [
+        "main_test.go",
+        "util_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/apis/core:go_default_library",

pkg/api/persistentvolumeclaim/main_test.go

+/*
+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 persistentvolumeclaim
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/api/pod/BUILD

@@ -33,7 +33,10 @@ filegroup(
 
 go_test(
     name = "go_default_test",
-    srcs = ["util_test.go"],
+    srcs = [
+        "main_test.go",
+        "util_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/apis/core:go_default_library",

pkg/api/pod/main_test.go

+/*
+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 pod
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/api/podsecuritypolicy/BUILD

@@ -32,12 +32,16 @@ filegroup(
 
 go_test(
     name = "go_default_test",
-    srcs = ["util_test.go"],
+    srcs = [
+        "main_test.go",
+        "util_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/apis/core:go_default_library",
         "//pkg/apis/policy:go_default_library",
         "//pkg/features:go_default_library",
         "//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
+        "//staging/src/k8s.io/apiserver/pkg/util/feature/testing:go_default_library",
     ],
 )

pkg/api/podsecuritypolicy/main_test.go

+/*
+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 podsecuritypolicy
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/apis/batch/validation/BUILD

@@ -27,7 +27,10 @@ go_library(
 
 go_test(
     name = "go_default_test",
-    srcs = ["validation_test.go"],
+    srcs = [
+        "main_test.go",
+        "validation_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/apis/batch:go_default_library",
@@ -36,6 +39,7 @@ go_test(
         "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
         "//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
+        "//staging/src/k8s.io/apiserver/pkg/util/feature/testing:go_default_library",
     ],
 )
 

pkg/apis/batch/validation/main_test.go

+/*
+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 validation
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/apis/core/v1/BUILD

@@ -36,6 +36,7 @@ go_test(
     srcs = [
         "conversion_test.go",
         "defaults_test.go",
+        "main_test.go",
     ],
     embed = [":go_default_library"],
     deps = [
@@ -44,6 +45,7 @@ go_test(
         "//pkg/apis/apps:go_default_library",
         "//pkg/apis/core:go_default_library",
         "//pkg/apis/core/fuzzer:go_default_library",
+        "//pkg/features:go_default_library",
         "//staging/src/k8s.io/api/apps/v1:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/api/apitesting/fuzzer:go_default_library",
@@ -55,6 +57,7 @@ go_test(
         "//staging/src/k8s.io/apimachinery/pkg/util/diff:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/intstr:go_default_library",
         "//staging/src/k8s.io/apiserver/pkg/util/feature:go_default_library",
+        "//staging/src/k8s.io/apiserver/pkg/util/feature/testing:go_default_library",
         "//vendor/k8s.io/utils/pointer:go_default_library",
     ],
 )

pkg/apis/core/v1/main_test.go

+/*
+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 v1
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/apis/core/validation/BUILD

@@ -47,6 +47,7 @@ go_test(
     name = "go_default_test",
     srcs = [
         "events_test.go",
+        "main_test.go",
         "validation_test.go",
     ],
     embed = [":go_default_library"],

pkg/apis/core/validation/main_test.go

+/*
+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 validation
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/apis/storage/util/BUILD

@@ -36,7 +36,10 @@ filegroup(
 
 go_test(
     name = "go_default_test",
-    srcs = ["util_test.go"],
+    srcs = [
+        "main_test.go",
+        "util_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/apis/core:go_default_library",

pkg/apis/storage/util/main_test.go

+/*
+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 util
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/apis/storage/v1/BUILD

@@ -47,7 +47,10 @@ filegroup(
 
 go_test(
     name = "go_default_test",
-    srcs = ["defaults_test.go"],
+    srcs = [
+        "defaults_test.go",
+        "main_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/api/legacyscheme:go_default_library",

pkg/apis/storage/v1/main_test.go

+/*
+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 v1
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/apis/storage/v1beta1/BUILD

@@ -47,7 +47,10 @@ filegroup(
 
 go_test(
     name = "go_default_test",
-    srcs = ["defaults_test.go"],
+    srcs = [
+        "defaults_test.go",
+        "main_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/api/legacyscheme:go_default_library",

pkg/apis/storage/v1beta1/main_test.go

+/*
+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 v1beta1
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/apis/storage/validation/BUILD

@@ -26,7 +26,10 @@ go_library(
 
 go_test(
     name = "go_default_test",
-    srcs = ["validation_test.go"],
+    srcs = [
+        "main_test.go",
+        "validation_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/apis/core:go_default_library",

pkg/apis/storage/validation/main_test.go

+/*
+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 validation
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/controller/volume/persistentvolume/BUILD

@@ -70,6 +70,7 @@ go_test(
         "delete_test.go",
         "framework_test.go",
         "index_test.go",
+        "main_test.go",
         "provision_test.go",
         "pv_controller_test.go",
         "recycle_test.go",

pkg/controller/volume/persistentvolume/main_test.go

+/*
+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 (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/kubelet/volumemanager/populator/BUILD

@@ -47,7 +47,10 @@ filegroup(
 
 go_test(
     name = "go_default_test",
-    srcs = ["desired_state_of_world_populator_test.go"],
+    srcs = [
+        "desired_state_of_world_populator_test.go",
+        "main_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/features:go_default_library",

pkg/kubelet/volumemanager/populator/main_test.go

+/*
+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 populator
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/kubelet/volumemanager/reconciler/BUILD

@@ -35,7 +35,10 @@ go_library(
 
 go_test(
     name = "go_default_test",
-    srcs = ["reconciler_test.go"],
+    srcs = [
+        "main_test.go",
+        "reconciler_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/features:go_default_library",

pkg/kubelet/volumemanager/reconciler/main_test.go

+/*
+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 reconciler
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/volume/csi/BUILD

@@ -44,6 +44,7 @@ go_test(
         "csi_client_test.go",
         "csi_mounter_test.go",
         "csi_plugin_test.go",
+        "main_test.go",
     ],
     embed = [":go_default_library"],
     deps = [

pkg/volume/csi/main_test.go

+/*
+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 csi
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

pkg/volume/util/BUILD

@@ -52,6 +52,7 @@ go_test(
         "atomic_writer_test.go",
         "attach_limit_test.go",
         "device_util_linux_test.go",
+        "main_test.go",
         "nested_volumes_test.go",
         "resize_util_test.go",
         "util_test.go",

pkg/volume/util/main_test.go

+/*
+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 util
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

plugin/pkg/admission/storage/persistentvolume/label/BUILD

@@ -32,7 +32,10 @@ go_library(
 
 go_test(
     name = "go_default_test",
-    srcs = ["admission_test.go"],
+    srcs = [
+        "admission_test.go",
+        "main_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/apis/core:go_default_library",

plugin/pkg/admission/storage/persistentvolume/label/main_test.go

+/*
+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 label
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

plugin/pkg/admission/storage/storageobjectinuseprotection/BUILD

@@ -17,7 +17,10 @@ go_library(
 
 go_test(
     name = "go_default_test",
-    srcs = ["admission_test.go"],
+    srcs = [
+        "admission_test.go",
+        "main_test.go",
+    ],
     embed = [":go_default_library"],
     deps = [
         "//pkg/apis/core:go_default_library",

plugin/pkg/admission/storage/storageobjectinuseprotection/main_test.go

+/*
+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 storageobjectinuseprotection
+
+import (
+	"testing"
+
+	utilfeature "k8s.io/apiserver/pkg/util/feature"
+	utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+	_ "k8s.io/kubernetes/pkg/features"
+)
+
+func TestMain(m *testing.M) {
+	utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+}

staging/src/k8s.io/apiserver/pkg/util/feature/testing/feature_gate_testing.go

@@ -18,13 +18,57 @@ package testing
 
 import (
 	"fmt"
+	"os"
+	"strings"
 	"testing"
 
 	"k8s.io/apiserver/pkg/util/feature"
 )
 
+// VerifyFeatureGatesUnchanged ensures the provided gate does not change any values when tests() are completed.
+// Intended to be placed into unit test packages that mess with feature gates.
+//
+// Example use:
+//
+// import (
+//   "testing"
+//
+//   utilfeature "k8s.io/apiserver/pkg/util/feature"
+//   utilfeaturetesting "k8s.io/apiserver/pkg/util/feature/testing"
+//   _ "k8s.io/kubernetes/pkg/features"
+// )
+//
+// func TestMain(m *testing.M) {
+//   utilfeaturetesting.VerifyFeatureGatesUnchanged(utilfeature.DefaultFeatureGate, m.Run)
+// }
+func VerifyFeatureGatesUnchanged(gate feature.FeatureGate, tests func() int) {
+	originalGates := gate.DeepCopy()
+	originalSet := fmt.Sprint(gate)
+
+	rc := tests()
+
+	finalSet := fmt.Sprint(gate)
+	if finalSet != originalSet {
+		for _, kv := range strings.Split(finalSet, ",") {
+			k := strings.Split(kv, "=")[0]
+			if originalGates.Enabled(feature.Feature(k)) != gate.Enabled(feature.Feature(k)) {
+				fmt.Println(fmt.Sprintf("VerifyFeatureGatesUnchanged: mutated %s feature gate from %v to %v", k, originalGates.Enabled(feature.Feature(k)), gate.Enabled(feature.Feature(k))))
+				rc = 1
+			}
+		}
+	}
+
+	if rc != 0 {
+		os.Exit(rc)
+	}
+}
+
 // SetFeatureGateDuringTest sets the specified gate to the specified value, and returns a function that restores the original value.
 // Failures to set or restore cause the test to fail.
+//
+// Example use:
+//
+// defer utilfeaturetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.<FeatureName>, true)()
 func SetFeatureGateDuringTest(t *testing.T, gate feature.FeatureGate, feature feature.Feature, value bool) func() {
 	originalValue := gate.Enabled(feature)