Add glide.yaml and vendor deps

vendor/k8s.io/kubernetes/pkg/apiserver/resthandler_test.go

@@ -0,0 +1,474 @@
+/*
+Copyright 2014 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 apiserver
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"testing"
+	"time"
+
+	"github.com/emicklei/go-restful"
+	"github.com/evanphx/json-patch"
+
+	"k8s.io/kubernetes/pkg/api"
+	apierrors "k8s.io/kubernetes/pkg/api/errors"
+	"k8s.io/kubernetes/pkg/api/rest"
+	"k8s.io/kubernetes/pkg/api/testapi"
+	"k8s.io/kubernetes/pkg/api/v1"
+	metav1 "k8s.io/kubernetes/pkg/apis/meta/v1"
+	"k8s.io/kubernetes/pkg/runtime"
+	"k8s.io/kubernetes/pkg/runtime/schema"
+	"k8s.io/kubernetes/pkg/types"
+	"k8s.io/kubernetes/pkg/util/diff"
+	"k8s.io/kubernetes/pkg/util/strategicpatch"
+)
+
+type testPatchType struct {
+	metav1.TypeMeta `json:",inline"`
+
+	TestPatchSubType `json:",inline"`
+}
+
+// We explicitly make it public as private types doesn't
+// work correctly with json inlined types.
+type TestPatchSubType struct {
+	StringField string `json:"theField"`
+}
+
+func (obj *testPatchType) GetObjectKind() schema.ObjectKind { return &obj.TypeMeta }
+
+func TestPatchAnonymousField(t *testing.T) {
+	originalJS := `{"kind":"testPatchType","theField":"my-value"}`
+	patch := `{"theField": "changed!"}`
+	expectedJS := `{"kind":"testPatchType","theField":"changed!"}`
+
+	actualBytes, err := getPatchedJS(api.StrategicMergePatchType, []byte(originalJS), []byte(patch), &testPatchType{})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if string(actualBytes) != expectedJS {
+		t.Errorf("expected %v, got %v", expectedJS, string(actualBytes))
+	}
+}
+
+type testPatcher struct {
+	t *testing.T
+
+	// startingPod is used for the first Update
+	startingPod *api.Pod
+
+	// updatePod is the pod that is used for conflict comparison and used for subsequent Update calls
+	updatePod *api.Pod
+
+	numUpdates int
+}
+
+func (p *testPatcher) New() runtime.Object {
+	return &api.Pod{}
+}
+
+func (p *testPatcher) Update(ctx api.Context, name string, objInfo rest.UpdatedObjectInfo) (runtime.Object, bool, error) {
+	currentPod := p.startingPod
+	if p.numUpdates > 0 {
+		currentPod = p.updatePod
+	}
+	p.numUpdates++
+
+	obj, err := objInfo.UpdatedObject(ctx, currentPod)
+	if err != nil {
+		return nil, false, err
+	}
+	inPod := obj.(*api.Pod)
+	if inPod.ResourceVersion != p.updatePod.ResourceVersion {
+		return nil, false, apierrors.NewConflict(api.Resource("pods"), inPod.Name, fmt.Errorf("existing %v, new %v", p.updatePod.ResourceVersion, inPod.ResourceVersion))
+	}
+
+	return inPod, false, nil
+}
+
+func (p *testPatcher) Get(ctx api.Context, name string) (runtime.Object, error) {
+	p.t.Fatal("Unexpected call to testPatcher.Get")
+	return nil, errors.New("Unexpected call to testPatcher.Get")
+}
+
+type testNamer struct {
+	namespace string
+	name      string
+}
+
+func (p *testNamer) Namespace(req *restful.Request) (namespace string, err error) {
+	return p.namespace, nil
+}
+
+// Name returns the name from the request, and an optional namespace value if this is a namespace
+// scoped call. An error is returned if the name is not available.
+func (p *testNamer) Name(req *restful.Request) (namespace, name string, err error) {
+	return p.namespace, p.name, nil
+}
+
+// ObjectName returns the namespace and name from an object if they exist, or an error if the object
+// does not support names.
+func (p *testNamer) ObjectName(obj runtime.Object) (namespace, name string, err error) {
+	return p.namespace, p.name, nil
+}
+
+// SetSelfLink sets the provided URL onto the object. The method should return nil if the object
+// does not support selfLinks.
+func (p *testNamer) SetSelfLink(obj runtime.Object, url string) error {
+	return errors.New("not implemented")
+}
+
+// GenerateLink creates a path and query for a given runtime object that represents the canonical path.
+func (p *testNamer) GenerateLink(req *restful.Request, obj runtime.Object) (uri string, err error) {
+	return "", errors.New("not implemented")
+}
+
+// GenerateLink creates a path and query for a list that represents the canonical path.
+func (p *testNamer) GenerateListLink(req *restful.Request) (uri string, err error) {
+	return "", errors.New("not implemented")
+}
+
+type patchTestCase struct {
+	name string
+
+	// admission chain to use, nil is fine
+	admit updateAdmissionFunc
+
+	// startingPod is used as the starting point for the first Update
+	startingPod *api.Pod
+	// changedPod is the "destination" pod for the patch.  The test will create a patch from the startingPod to the changedPod
+	// to use when calling the patch operation
+	changedPod *api.Pod
+	// updatePod is the pod that is used for conflict comparison and as the starting point for the second Update
+	updatePod *api.Pod
+
+	// expectedPod is the pod that you expect to get back after the patch is complete
+	expectedPod   *api.Pod
+	expectedError string
+}
+
+func (tc *patchTestCase) Run(t *testing.T) {
+	t.Logf("Starting test %s", tc.name)
+
+	namespace := tc.startingPod.Namespace
+	name := tc.startingPod.Name
+
+	codec := testapi.Default.Codec()
+	admit := tc.admit
+	if admit == nil {
+		admit = func(updatedObject runtime.Object, currentObject runtime.Object) error {
+			return nil
+		}
+	}
+
+	testPatcher := &testPatcher{}
+	testPatcher.t = t
+	testPatcher.startingPod = tc.startingPod
+	testPatcher.updatePod = tc.updatePod
+
+	ctx := api.NewDefaultContext()
+	ctx = api.WithNamespace(ctx, namespace)
+
+	namer := &testNamer{namespace, name}
+	copier := runtime.ObjectCopier(api.Scheme)
+	resource := schema.GroupVersionResource{Group: "", Version: "v1", Resource: "pods"}
+	versionedObj := &v1.Pod{}
+
+	for _, patchType := range []api.PatchType{api.JSONPatchType, api.MergePatchType, api.StrategicMergePatchType} {
+		// TODO SUPPORT THIS!
+		if patchType == api.JSONPatchType {
+			continue
+		}
+		t.Logf("Working with patchType %v", patchType)
+
+		originalObjJS, err := runtime.Encode(codec, tc.startingPod)
+		if err != nil {
+			t.Errorf("%s: unexpected error: %v", tc.name, err)
+			return
+		}
+		changedJS, err := runtime.Encode(codec, tc.changedPod)
+		if err != nil {
+			t.Errorf("%s: unexpected error: %v", tc.name, err)
+			return
+		}
+
+		patch := []byte{}
+		switch patchType {
+		case api.JSONPatchType:
+			continue
+
+		case api.StrategicMergePatchType:
+			patch, err = strategicpatch.CreateStrategicMergePatch(originalObjJS, changedJS, versionedObj)
+			if err != nil {
+				t.Errorf("%s: unexpected error: %v", tc.name, err)
+				return
+			}
+
+		case api.MergePatchType:
+			patch, err = jsonpatch.CreateMergePatch(originalObjJS, changedJS)
+			if err != nil {
+				t.Errorf("%s: unexpected error: %v", tc.name, err)
+				return
+			}
+
+		}
+
+		resultObj, err := patchResource(ctx, admit, 1*time.Second, versionedObj, testPatcher, name, patchType, patch, namer, copier, resource, codec)
+		if len(tc.expectedError) != 0 {
+			if err == nil || err.Error() != tc.expectedError {
+				t.Errorf("%s: expected error %v, but got %v", tc.name, tc.expectedError, err)
+				return
+			}
+		} else {
+			if err != nil {
+				t.Errorf("%s: unexpected error: %v", tc.name, err)
+				return
+			}
+		}
+
+		if tc.expectedPod == nil {
+			if resultObj != nil {
+				t.Errorf("%s: unexpected result: %v", tc.name, resultObj)
+			}
+			return
+		}
+
+		resultPod := resultObj.(*api.Pod)
+
+		// roundtrip to get defaulting
+		expectedJS, err := runtime.Encode(codec, tc.expectedPod)
+		if err != nil {
+			t.Errorf("%s: unexpected error: %v", tc.name, err)
+			return
+		}
+		expectedObj, err := runtime.Decode(codec, expectedJS)
+		if err != nil {
+			t.Errorf("%s: unexpected error: %v", tc.name, err)
+			return
+		}
+		reallyExpectedPod := expectedObj.(*api.Pod)
+
+		if !reflect.DeepEqual(*reallyExpectedPod, *resultPod) {
+			t.Errorf("%s mismatch: %v\n", tc.name, diff.ObjectGoPrintDiff(reallyExpectedPod, resultPod))
+			return
+		}
+	}
+
+}
+
+func TestPatchResourceWithVersionConflict(t *testing.T) {
+	namespace := "bar"
+	name := "foo"
+	uid := types.UID("uid")
+	fifteen := int64(15)
+	thirty := int64(30)
+
+	tc := &patchTestCase{
+		name: "TestPatchResourceWithVersionConflict",
+
+		startingPod: &api.Pod{},
+		changedPod:  &api.Pod{},
+		updatePod:   &api.Pod{},
+
+		expectedPod: &api.Pod{},
+	}
+
+	tc.startingPod.Name = name
+	tc.startingPod.Namespace = namespace
+	tc.startingPod.UID = uid
+	tc.startingPod.ResourceVersion = "1"
+	tc.startingPod.APIVersion = "v1"
+	tc.startingPod.Spec.ActiveDeadlineSeconds = &fifteen
+
+	tc.changedPod.Name = name
+	tc.changedPod.Namespace = namespace
+	tc.changedPod.UID = uid
+	tc.changedPod.ResourceVersion = "1"
+	tc.changedPod.APIVersion = "v1"
+	tc.changedPod.Spec.ActiveDeadlineSeconds = &thirty
+
+	tc.updatePod.Name = name
+	tc.updatePod.Namespace = namespace
+	tc.updatePod.UID = uid
+	tc.updatePod.ResourceVersion = "2"
+	tc.updatePod.APIVersion = "v1"
+	tc.updatePod.Spec.ActiveDeadlineSeconds = &fifteen
+	tc.updatePod.Spec.NodeName = "anywhere"
+
+	tc.expectedPod.Name = name
+	tc.expectedPod.Namespace = namespace
+	tc.expectedPod.UID = uid
+	tc.expectedPod.ResourceVersion = "2"
+	tc.expectedPod.Spec.ActiveDeadlineSeconds = &thirty
+	tc.expectedPod.Spec.NodeName = "anywhere"
+
+	tc.Run(t)
+}
+
+func TestPatchResourceWithConflict(t *testing.T) {
+	namespace := "bar"
+	name := "foo"
+	uid := types.UID("uid")
+
+	tc := &patchTestCase{
+		name: "TestPatchResourceWithConflict",
+
+		startingPod: &api.Pod{},
+		changedPod:  &api.Pod{},
+		updatePod:   &api.Pod{},
+
+		expectedError: `Operation cannot be fulfilled on pods "foo": existing 2, new 1`,
+	}
+
+	tc.startingPod.Name = name
+	tc.startingPod.Namespace = namespace
+	tc.startingPod.UID = uid
+	tc.startingPod.ResourceVersion = "1"
+	tc.startingPod.APIVersion = "v1"
+	tc.startingPod.Spec.NodeName = "here"
+
+	tc.changedPod.Name = name
+	tc.changedPod.Namespace = namespace
+	tc.changedPod.UID = uid
+	tc.changedPod.ResourceVersion = "1"
+	tc.changedPod.APIVersion = "v1"
+	tc.changedPod.Spec.NodeName = "there"
+
+	tc.updatePod.Name = name
+	tc.updatePod.Namespace = namespace
+	tc.updatePod.UID = uid
+	tc.updatePod.ResourceVersion = "2"
+	tc.updatePod.APIVersion = "v1"
+	tc.updatePod.Spec.NodeName = "anywhere"
+
+	tc.Run(t)
+}
+
+func TestPatchWithAdmissionRejection(t *testing.T) {
+	namespace := "bar"
+	name := "foo"
+	uid := types.UID("uid")
+	fifteen := int64(15)
+	thirty := int64(30)
+
+	tc := &patchTestCase{
+		name: "TestPatchWithAdmissionRejection",
+
+		admit: func(updatedObject runtime.Object, currentObject runtime.Object) error {
+			return errors.New("admission failure")
+		},
+
+		startingPod: &api.Pod{},
+		changedPod:  &api.Pod{},
+		updatePod:   &api.Pod{},
+
+		expectedError: "admission failure",
+	}
+
+	tc.startingPod.Name = name
+	tc.startingPod.Namespace = namespace
+	tc.startingPod.UID = uid
+	tc.startingPod.ResourceVersion = "1"
+	tc.startingPod.APIVersion = "v1"
+	tc.startingPod.Spec.ActiveDeadlineSeconds = &fifteen
+
+	tc.changedPod.Name = name
+	tc.changedPod.Namespace = namespace
+	tc.changedPod.UID = uid
+	tc.changedPod.ResourceVersion = "1"
+	tc.changedPod.APIVersion = "v1"
+	tc.changedPod.Spec.ActiveDeadlineSeconds = &thirty
+
+	tc.Run(t)
+}
+
+func TestPatchWithVersionConflictThenAdmissionFailure(t *testing.T) {
+	namespace := "bar"
+	name := "foo"
+	uid := types.UID("uid")
+	fifteen := int64(15)
+	thirty := int64(30)
+	seen := false
+
+	tc := &patchTestCase{
+		name: "TestPatchWithVersionConflictThenAdmissionFailure",
+
+		admit: func(updatedObject runtime.Object, currentObject runtime.Object) error {
+			if seen {
+				return errors.New("admission failure")
+			}
+
+			seen = true
+			return nil
+		},
+
+		startingPod: &api.Pod{},
+		changedPod:  &api.Pod{},
+		updatePod:   &api.Pod{},
+
+		expectedError: "admission failure",
+	}
+
+	tc.startingPod.Name = name
+	tc.startingPod.Namespace = namespace
+	tc.startingPod.UID = uid
+	tc.startingPod.ResourceVersion = "1"
+	tc.startingPod.APIVersion = "v1"
+	tc.startingPod.Spec.ActiveDeadlineSeconds = &fifteen
+
+	tc.changedPod.Name = name
+	tc.changedPod.Namespace = namespace
+	tc.changedPod.UID = uid
+	tc.changedPod.ResourceVersion = "1"
+	tc.changedPod.APIVersion = "v1"
+	tc.changedPod.Spec.ActiveDeadlineSeconds = &thirty
+
+	tc.updatePod.Name = name
+	tc.updatePod.Namespace = namespace
+	tc.updatePod.UID = uid
+	tc.updatePod.ResourceVersion = "2"
+	tc.updatePod.APIVersion = "v1"
+	tc.updatePod.Spec.ActiveDeadlineSeconds = &fifteen
+	tc.updatePod.Spec.NodeName = "anywhere"
+
+	tc.Run(t)
+}
+
+func TestHasUID(t *testing.T) {
+	testcases := []struct {
+		obj    runtime.Object
+		hasUID bool
+	}{
+		{obj: nil, hasUID: false},
+		{obj: &api.Pod{}, hasUID: false},
+		{obj: nil, hasUID: false},
+		{obj: runtime.Object(nil), hasUID: false},
+		{obj: &api.Pod{ObjectMeta: api.ObjectMeta{UID: types.UID("A")}}, hasUID: true},
+	}
+	for i, tc := range testcases {
+		actual, err := hasUID(tc.obj)
+		if err != nil {
+			t.Errorf("%d: unexpected error %v", i, err)
+			continue
+		}
+		if tc.hasUID != actual {
+			t.Errorf("%d: expected %v, got %v", i, tc.hasUID, actual)
+		}
+	}
+}