vendor update for CSI 0.3.0

vendor/k8s.io/kubernetes/pkg/scheduler/testing/util.go

@@ -0,0 +1,173 @@
+/*
+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 testing
+
+import (
+	"fmt"
+	"mime"
+	"os"
+	"reflect"
+	"strings"
+
+	"k8s.io/apimachinery/pkg/runtime"
+	"k8s.io/apimachinery/pkg/runtime/schema"
+	"k8s.io/kubernetes/pkg/api/legacyscheme"
+	api "k8s.io/kubernetes/pkg/apis/core"
+
+	// Init the core api installation
+	_ "k8s.io/kubernetes/pkg/apis/core/install"
+)
+
+// TestGroup defines a api group for testing.
+type TestGroup struct {
+	externalGroupVersion schema.GroupVersion
+	internalGroupVersion schema.GroupVersion
+	internalTypes        map[string]reflect.Type
+	externalTypes        map[string]reflect.Type
+}
+
+var (
+	// Groups defines a TestGroup map.
+	Groups = make(map[string]TestGroup)
+	// Test defines a TestGroup object.
+	Test TestGroup
+
+	serializer runtime.SerializerInfo
+)
+
+func init() {
+	if apiMediaType := os.Getenv("KUBE_TEST_API_TYPE"); len(apiMediaType) > 0 {
+		var ok bool
+		mediaType, _, err := mime.ParseMediaType(apiMediaType)
+		if err != nil {
+			panic(err)
+		}
+		serializer, ok = runtime.SerializerInfoForMediaType(legacyscheme.Codecs.SupportedMediaTypes(), mediaType)
+		if !ok {
+			panic(fmt.Sprintf("no serializer for %s", apiMediaType))
+		}
+	}
+
+	kubeTestAPI := os.Getenv("KUBE_TEST_API")
+	if len(kubeTestAPI) != 0 {
+		// priority is "first in list preferred", so this has to run in reverse order
+		testGroupVersions := strings.Split(kubeTestAPI, ",")
+		for i := len(testGroupVersions) - 1; i >= 0; i-- {
+			gvString := testGroupVersions[i]
+			groupVersion, err := schema.ParseGroupVersion(gvString)
+			if err != nil {
+				panic(fmt.Sprintf("Error parsing groupversion %v: %v", gvString, err))
+			}
+
+			internalGroupVersion := schema.GroupVersion{Group: groupVersion.Group, Version: runtime.APIVersionInternal}
+			Groups[groupVersion.Group] = TestGroup{
+				externalGroupVersion: groupVersion,
+				internalGroupVersion: internalGroupVersion,
+				internalTypes:        legacyscheme.Scheme.KnownTypes(internalGroupVersion),
+				externalTypes:        legacyscheme.Scheme.KnownTypes(groupVersion),
+			}
+		}
+	}
+
+	if _, ok := Groups[api.GroupName]; !ok {
+		externalGroupVersion := schema.GroupVersion{Group: api.GroupName, Version: "v1"}
+		Groups[api.GroupName] = TestGroup{
+			externalGroupVersion: externalGroupVersion,
+			internalGroupVersion: api.SchemeGroupVersion,
+			internalTypes:        legacyscheme.Scheme.KnownTypes(api.SchemeGroupVersion),
+			externalTypes:        legacyscheme.Scheme.KnownTypes(externalGroupVersion),
+		}
+	}
+
+	Test = Groups[api.GroupName]
+}
+
+// Codec returns the codec for the API version to test against, as set by the
+// KUBE_TEST_API_TYPE env var.
+func (g TestGroup) Codec() runtime.Codec {
+	if serializer.Serializer == nil {
+		return legacyscheme.Codecs.LegacyCodec(g.externalGroupVersion)
+	}
+	return legacyscheme.Codecs.CodecForVersions(serializer.Serializer, legacyscheme.Codecs.UniversalDeserializer(), schema.GroupVersions{g.externalGroupVersion}, nil)
+}
+
+// SelfLink returns a self link that will appear to be for the version Version().
+// 'resource' should be the resource path, e.g. "pods" for the Pod type. 'name' should be
+// empty for lists.
+func (g TestGroup) SelfLink(resource, name string) string {
+	if g.externalGroupVersion.Group == api.GroupName {
+		if name == "" {
+			return fmt.Sprintf("/api/%s/%s", g.externalGroupVersion.Version, resource)
+		}
+		return fmt.Sprintf("/api/%s/%s/%s", g.externalGroupVersion.Version, resource, name)
+	}
+
+	// TODO: will need a /apis prefix once we have proper multi-group
+	// support
+	if name == "" {
+		return fmt.Sprintf("/apis/%s/%s/%s", g.externalGroupVersion.Group, g.externalGroupVersion.Version, resource)
+	}
+	return fmt.Sprintf("/apis/%s/%s/%s/%s", g.externalGroupVersion.Group, g.externalGroupVersion.Version, resource, name)
+}
+
+// ResourcePathWithPrefix returns the appropriate path for the given prefix (watch, proxy, redirect, etc), resource, namespace and name.
+// For ex, this is of the form:
+// /api/v1/watch/namespaces/foo/pods/pod0 for v1.
+func (g TestGroup) ResourcePathWithPrefix(prefix, resource, namespace, name string) string {
+	var path string
+	if g.externalGroupVersion.Group == api.GroupName {
+		path = "/api/" + g.externalGroupVersion.Version
+	} else {
+		// TODO: switch back once we have proper multiple group support
+		// path = "/apis/" + g.Group + "/" + Version(group...)
+		path = "/apis/" + g.externalGroupVersion.Group + "/" + g.externalGroupVersion.Version
+	}
+
+	if prefix != "" {
+		path = path + "/" + prefix
+	}
+	if namespace != "" {
+		path = path + "/namespaces/" + namespace
+	}
+	// Resource names are lower case.
+	resource = strings.ToLower(resource)
+	if resource != "" {
+		path = path + "/" + resource
+	}
+	if name != "" {
+		path = path + "/" + name
+	}
+	return path
+}
+
+// ResourcePath returns the appropriate path for the given resource, namespace and name.
+// For example, this is of the form:
+// /api/v1/namespaces/foo/pods/pod0 for v1.
+func (g TestGroup) ResourcePath(resource, namespace, name string) string {
+	return g.ResourcePathWithPrefix("", resource, namespace, name)
+}
+
+// SubResourcePath returns the appropriate path for the given resource, namespace,
+// name and subresource.
+func (g TestGroup) SubResourcePath(resource, namespace, name, sub string) string {
+	path := g.ResourcePathWithPrefix("", resource, namespace, name)
+	if sub != "" {
+		path = path + "/" + sub
+	}
+
+	return path
+}