vendor files

vendor/k8s.io/kubernetes/pkg/registry/registrytest/validate.go

@@ -0,0 +1,80 @@
+/*
+Copyright 2017 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 registrytest
+
+import (
+	"fmt"
+
+	"k8s.io/apiserver/pkg/registry/generic/registry"
+	"k8s.io/apiserver/pkg/registry/rest"
+	"k8s.io/kubernetes/pkg/util/slice"
+)
+
+// ValidateStorageStrategies ensures any instances of the generic registry.Store in the given storage map
+// have expected strategies defined.
+func ValidateStorageStrategies(storageMap map[string]rest.Storage, exceptions StrategyExceptions) []error {
+	errs := []error{}
+
+	// Used to ensure we saw all the expected exceptions:
+	hasExportExceptionsSeen := []string{}
+
+	for k, storage := range storageMap {
+		switch t := storage.(type) {
+		case registry.GenericStore:
+			// At this point it appears all uses of the generic registry store should have a create, update, and
+			// delete strategy set:
+			if t.GetCreateStrategy() == nil {
+				errs = append(errs, fmt.Errorf("store for type [%v] does not have a CreateStrategy", k))
+			}
+			if t.GetUpdateStrategy() == nil {
+				errs = append(errs, fmt.Errorf("store for type [%v] does not have an UpdateStrategy", k))
+			}
+			if t.GetDeleteStrategy() == nil {
+				errs = append(errs, fmt.Errorf("store for type [%v] does not have a DeleteStrategy", k))
+			}
+
+			// Check that ExportStrategy is set if applicable:
+			if slice.ContainsString(exceptions.HasExportStrategy, k, nil) {
+				hasExportExceptionsSeen = append(hasExportExceptionsSeen, k)
+				if t.GetExportStrategy() == nil {
+					errs = append(errs, fmt.Errorf("store for type [%v] does not have an ExportStrategy", k))
+				}
+			} else {
+				// By default we expect Stores to not have additional export logic:
+				if t.GetExportStrategy() != nil {
+					errs = append(errs, fmt.Errorf("store for type [%v] has an unexpected ExportStrategy", k))
+				}
+			}
+
+		}
+	}
+
+	// Ensure that we saw all our expected exceptions:
+	for _, expKey := range exceptions.HasExportStrategy {
+		if !slice.ContainsString(hasExportExceptionsSeen, expKey, nil) {
+			errs = append(errs, fmt.Errorf("no generic store seen for expected ExportStrategy: %v", expKey))
+		}
+	}
+
+	return errs
+}
+
+// StrategyExceptions carries information on what exceptions to default strategy expectations are expected.
+type StrategyExceptions struct {
+	// HasExportStrategy is a list of the resource keys whose store should have a custom export strategy.
+	HasExportStrategy []string
+}