ceph-csi/vendor/k8s.io/kubernetes/pkg/kubectl/scale_test.go

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/*
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 kubectl
import (
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"bytes"
"encoding/json"
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"errors"
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"fmt"
"io"
"io/ioutil"
"net/http"
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"testing"
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"time"
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appsv1beta2 "k8s.io/api/apps/v1beta2"
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kerrors "k8s.io/apimachinery/pkg/api/errors"
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apimeta "k8s.io/apimachinery/pkg/api/meta"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/runtime/serializer"
"k8s.io/client-go/discovery"
fakedisco "k8s.io/client-go/discovery/fake"
"k8s.io/client-go/dynamic"
fakerest "k8s.io/client-go/rest/fake"
"k8s.io/client-go/scale"
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testcore "k8s.io/client-go/testing"
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"k8s.io/kubernetes/pkg/apis/apps"
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"k8s.io/kubernetes/pkg/apis/batch"
api "k8s.io/kubernetes/pkg/apis/core"
"k8s.io/kubernetes/pkg/apis/extensions"
"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/fake"
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appsclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/apps/internalversion"
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batchclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/batch/internalversion"
coreclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/core/internalversion"
extensionsclient "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/typed/extensions/internalversion"
)
type ErrorReplicationControllers struct {
coreclient.ReplicationControllerInterface
conflict bool
invalid bool
}
func (c *ErrorReplicationControllers) Update(controller *api.ReplicationController) (*api.ReplicationController, error) {
switch {
case c.invalid:
return nil, kerrors.NewInvalid(api.Kind(controller.Kind), controller.Name, nil)
case c.conflict:
return nil, kerrors.NewConflict(api.Resource(controller.Kind), controller.Name, nil)
}
return nil, errors.New("Replication controller update failure")
}
type ErrorReplicationControllerClient struct {
*fake.Clientset
conflict bool
invalid bool
}
func (c *ErrorReplicationControllerClient) ReplicationControllers(namespace string) coreclient.ReplicationControllerInterface {
return &ErrorReplicationControllers{
ReplicationControllerInterface: c.Clientset.Core().ReplicationControllers(namespace),
conflict: c.conflict,
invalid: c.invalid,
}
}
func TestReplicationControllerScaleRetry(t *testing.T) {
fake := &ErrorReplicationControllerClient{Clientset: fake.NewSimpleClientset(oldRc(0, 0)), conflict: true}
scaler := ReplicationControllerScaler{fake}
preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo-v1"
namespace := metav1.NamespaceDefault
scaleFunc := ScaleCondition(&scaler, &preconditions, namespace, name, count, nil)
pass, err := scaleFunc()
if pass {
t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
}
if err != nil {
t.Errorf("Did not expect an error on update conflict failure, got %v", err)
}
preconditions = ScalePrecondition{3, ""}
scaleFunc = ScaleCondition(&scaler, &preconditions, namespace, name, count, nil)
pass, err = scaleFunc()
if err == nil {
t.Errorf("Expected error on precondition failure")
}
}
func TestReplicationControllerScaleInvalid(t *testing.T) {
fake := &ErrorReplicationControllerClient{Clientset: fake.NewSimpleClientset(oldRc(0, 0)), invalid: true}
scaler := ReplicationControllerScaler{fake}
preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo-v1"
namespace := "default"
scaleFunc := ScaleCondition(&scaler, &preconditions, namespace, name, count, nil)
pass, err := scaleFunc()
if pass {
t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
}
e, ok := err.(ScaleError)
if err == nil || !ok || e.FailureType != ScaleUpdateFailure {
t.Errorf("Expected error on invalid update failure, got %v", err)
}
}
func TestReplicationControllerScale(t *testing.T) {
fake := fake.NewSimpleClientset(oldRc(0, 0))
scaler := ReplicationControllerScaler{fake.Core()}
preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo-v1"
scaler.Scale("default", name, count, &preconditions, nil, nil)
actions := fake.Actions()
if len(actions) != 2 {
t.Errorf("unexpected actions: %v, expected 2 actions (get, update)", actions)
}
if action, ok := actions[0].(testcore.GetAction); !ok || action.GetResource().GroupResource() != api.Resource("replicationcontrollers") || action.GetName() != name {
t.Errorf("unexpected action: %v, expected get-replicationController %s", actions[0], name)
}
if action, ok := actions[1].(testcore.UpdateAction); !ok || action.GetResource().GroupResource() != api.Resource("replicationcontrollers") || action.GetObject().(*api.ReplicationController).Spec.Replicas != int32(count) {
t.Errorf("unexpected action %v, expected update-replicationController with replicas = %d", actions[1], count)
}
}
func TestReplicationControllerScaleFailsPreconditions(t *testing.T) {
fake := fake.NewSimpleClientset(&api.ReplicationController{
ObjectMeta: metav1.ObjectMeta{Namespace: metav1.NamespaceDefault, Name: "foo"},
Spec: api.ReplicationControllerSpec{
Replicas: 10,
},
})
scaler := ReplicationControllerScaler{fake.Core()}
preconditions := ScalePrecondition{2, ""}
count := uint(3)
name := "foo"
scaler.Scale("default", name, count, &preconditions, nil, nil)
actions := fake.Actions()
if len(actions) != 1 {
t.Errorf("unexpected actions: %v, expected 1 action (get)", actions)
}
if action, ok := actions[0].(testcore.GetAction); !ok || action.GetResource().GroupResource() != api.Resource("replicationcontrollers") || action.GetName() != name {
t.Errorf("unexpected action: %v, expected get-replicationController %s", actions[0], name)
}
}
func TestValidateReplicationController(t *testing.T) {
tests := []struct {
preconditions ScalePrecondition
controller api.ReplicationController
expectError bool
test string
}{
{
preconditions: ScalePrecondition{-1, ""},
expectError: false,
test: "defaults",
},
{
preconditions: ScalePrecondition{-1, ""},
controller: api.ReplicationController{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: api.ReplicationControllerSpec{
Replicas: 10,
},
},
expectError: false,
test: "defaults 2",
},
{
preconditions: ScalePrecondition{0, ""},
controller: api.ReplicationController{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: api.ReplicationControllerSpec{
Replicas: 0,
},
},
expectError: false,
test: "size matches",
},
{
preconditions: ScalePrecondition{-1, "foo"},
controller: api.ReplicationController{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: api.ReplicationControllerSpec{
Replicas: 10,
},
},
expectError: false,
test: "resource version matches",
},
{
preconditions: ScalePrecondition{10, "foo"},
controller: api.ReplicationController{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: api.ReplicationControllerSpec{
Replicas: 10,
},
},
expectError: false,
test: "both match",
},
{
preconditions: ScalePrecondition{10, "foo"},
controller: api.ReplicationController{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: api.ReplicationControllerSpec{
Replicas: 20,
},
},
expectError: true,
test: "size different",
},
{
preconditions: ScalePrecondition{10, "foo"},
controller: api.ReplicationController{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "bar",
},
Spec: api.ReplicationControllerSpec{
Replicas: 10,
},
},
expectError: true,
test: "version different",
},
{
preconditions: ScalePrecondition{10, "foo"},
controller: api.ReplicationController{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "bar",
},
Spec: api.ReplicationControllerSpec{
Replicas: 20,
},
},
expectError: true,
test: "both different",
},
}
for _, test := range tests {
err := test.preconditions.ValidateReplicationController(&test.controller)
if err != nil && !test.expectError {
t.Errorf("unexpected error: %v (%s)", err, test.test)
}
if err == nil && test.expectError {
t.Errorf("expected an error: %v (%s)", err, test.test)
}
}
}
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type errorJobs struct {
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batchclient.JobInterface
conflict bool
invalid bool
}
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func (c *errorJobs) Update(job *batch.Job) (*batch.Job, error) {
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switch {
case c.invalid:
return nil, kerrors.NewInvalid(api.Kind(job.Kind), job.Name, nil)
case c.conflict:
return nil, kerrors.NewConflict(api.Resource(job.Kind), job.Name, nil)
}
return nil, errors.New("Job update failure")
}
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func (c *errorJobs) Get(name string, options metav1.GetOptions) (*batch.Job, error) {
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zero := int32(0)
return &batch.Job{
Spec: batch.JobSpec{
Parallelism: &zero,
},
}, nil
}
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type errorJobClient struct {
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batchclient.JobsGetter
conflict bool
invalid bool
}
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func (c *errorJobClient) Jobs(namespace string) batchclient.JobInterface {
return &errorJobs{
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JobInterface: c.JobsGetter.Jobs(namespace),
conflict: c.conflict,
invalid: c.invalid,
}
}
func TestJobScaleRetry(t *testing.T) {
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fake := &errorJobClient{JobsGetter: fake.NewSimpleClientset().Batch(), conflict: true}
scaler := ScalerFor(schema.GroupKind{Group: batch.GroupName, Kind: "Job"}, fake, nil, schema.GroupResource{})
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preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
namespace := "default"
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scaleFunc := ScaleCondition(scaler, &preconditions, namespace, name, count, nil)
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pass, err := scaleFunc()
if pass != false {
t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
}
if err != nil {
t.Errorf("Did not expect an error on update failure, got %v", err)
}
preconditions = ScalePrecondition{3, ""}
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scaleFunc = ScaleCondition(scaler, &preconditions, namespace, name, count, nil)
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pass, err = scaleFunc()
if err == nil {
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t.Error("Expected error on precondition failure")
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}
}
func job() *batch.Job {
return &batch.Job{
ObjectMeta: metav1.ObjectMeta{
Namespace: metav1.NamespaceDefault,
Name: "foo",
},
}
}
func TestJobScale(t *testing.T) {
fakeClientset := fake.NewSimpleClientset(job())
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scaler := ScalerFor(schema.GroupKind{Group: batch.GroupName, Kind: "Job"}, fakeClientset.Batch(), nil, schema.GroupResource{})
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preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
scaler.Scale("default", name, count, &preconditions, nil, nil)
actions := fakeClientset.Actions()
if len(actions) != 2 {
t.Errorf("unexpected actions: %v, expected 2 actions (get, update)", actions)
}
if action, ok := actions[0].(testcore.GetAction); !ok || action.GetResource().GroupResource() != batch.Resource("jobs") || action.GetName() != name {
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t.Errorf("unexpected action: %v, expected get-job %s", actions[0], name)
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}
if action, ok := actions[1].(testcore.UpdateAction); !ok || action.GetResource().GroupResource() != batch.Resource("jobs") || *action.GetObject().(*batch.Job).Spec.Parallelism != int32(count) {
t.Errorf("unexpected action %v, expected update-job with parallelism = %d", actions[1], count)
}
}
func TestJobScaleInvalid(t *testing.T) {
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fake := &errorJobClient{JobsGetter: fake.NewSimpleClientset().Batch(), invalid: true}
scaler := ScalerFor(schema.GroupKind{Group: batch.GroupName, Kind: "Job"}, fake, nil, schema.GroupResource{})
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preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
namespace := "default"
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scaleFunc := ScaleCondition(scaler, &preconditions, namespace, name, count, nil)
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pass, err := scaleFunc()
if pass {
t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
}
e, ok := err.(ScaleError)
if err == nil || !ok || e.FailureType != ScaleUpdateFailure {
t.Errorf("Expected error on invalid update failure, got %v", err)
}
}
func TestJobScaleFailsPreconditions(t *testing.T) {
ten := int32(10)
fake := fake.NewSimpleClientset(&batch.Job{
ObjectMeta: metav1.ObjectMeta{
Namespace: metav1.NamespaceDefault,
Name: "foo",
},
Spec: batch.JobSpec{
Parallelism: &ten,
},
})
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scaler := ScalerFor(schema.GroupKind{Group: batch.GroupName, Kind: "Job"}, fake.Batch(), nil, schema.GroupResource{})
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preconditions := ScalePrecondition{2, ""}
count := uint(3)
name := "foo"
scaler.Scale("default", name, count, &preconditions, nil, nil)
actions := fake.Actions()
if len(actions) != 1 {
t.Errorf("unexpected actions: %v, expected 1 actions (get)", actions)
}
if action, ok := actions[0].(testcore.GetAction); !ok || action.GetResource().GroupResource() != batch.Resource("jobs") || action.GetName() != name {
t.Errorf("unexpected action: %v, expected get-job %s", actions[0], name)
}
}
func TestValidateJob(t *testing.T) {
zero, ten, twenty := int32(0), int32(10), int32(20)
tests := []struct {
preconditions ScalePrecondition
job batch.Job
expectError bool
test string
}{
{
preconditions: ScalePrecondition{-1, ""},
expectError: false,
test: "defaults",
},
{
preconditions: ScalePrecondition{-1, ""},
job: batch.Job{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: batch.JobSpec{
Parallelism: &ten,
},
},
expectError: false,
test: "defaults 2",
},
{
preconditions: ScalePrecondition{0, ""},
job: batch.Job{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: batch.JobSpec{
Parallelism: &zero,
},
},
expectError: false,
test: "size matches",
},
{
preconditions: ScalePrecondition{-1, "foo"},
job: batch.Job{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: batch.JobSpec{
Parallelism: &ten,
},
},
expectError: false,
test: "resource version matches",
},
{
preconditions: ScalePrecondition{10, "foo"},
job: batch.Job{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: batch.JobSpec{
Parallelism: &ten,
},
},
expectError: false,
test: "both match",
},
{
preconditions: ScalePrecondition{10, "foo"},
job: batch.Job{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: batch.JobSpec{
Parallelism: &twenty,
},
},
expectError: true,
test: "size different",
},
{
preconditions: ScalePrecondition{10, "foo"},
job: batch.Job{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
},
expectError: true,
test: "parallelism nil",
},
{
preconditions: ScalePrecondition{10, "foo"},
job: batch.Job{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "bar",
},
Spec: batch.JobSpec{
Parallelism: &ten,
},
},
expectError: true,
test: "version different",
},
{
preconditions: ScalePrecondition{10, "foo"},
job: batch.Job{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "bar",
},
Spec: batch.JobSpec{
Parallelism: &twenty,
},
},
expectError: true,
test: "both different",
},
}
for _, test := range tests {
err := test.preconditions.ValidateJob(&test.job)
if err != nil && !test.expectError {
t.Errorf("unexpected error: %v (%s)", err, test.test)
}
if err == nil && test.expectError {
t.Errorf("expected an error: %v (%s)", err, test.test)
}
}
}
type ErrorDeployments struct {
extensionsclient.DeploymentInterface
conflict bool
invalid bool
}
func (c *ErrorDeployments) Update(deployment *extensions.Deployment) (*extensions.Deployment, error) {
switch {
case c.invalid:
return nil, kerrors.NewInvalid(api.Kind(deployment.Kind), deployment.Name, nil)
case c.conflict:
return nil, kerrors.NewConflict(api.Resource(deployment.Kind), deployment.Name, nil)
}
return nil, errors.New("deployment update failure")
}
func (c *ErrorDeployments) Get(name string, options metav1.GetOptions) (*extensions.Deployment, error) {
return &extensions.Deployment{
Spec: extensions.DeploymentSpec{
Replicas: 0,
},
}, nil
}
type ErrorDeploymentClient struct {
extensionsclient.DeploymentsGetter
conflict bool
invalid bool
}
func (c *ErrorDeploymentClient) Deployments(namespace string) extensionsclient.DeploymentInterface {
return &ErrorDeployments{
DeploymentInterface: c.DeploymentsGetter.Deployments(namespace),
invalid: c.invalid,
conflict: c.conflict,
}
}
func TestDeploymentScaleRetry(t *testing.T) {
fake := &ErrorDeploymentClient{DeploymentsGetter: fake.NewSimpleClientset().Extensions(), conflict: true}
scaler := &DeploymentScaler{fake}
preconditions := &ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
namespace := "default"
scaleFunc := ScaleCondition(scaler, preconditions, namespace, name, count, nil)
pass, err := scaleFunc()
if pass != false {
t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
}
if err != nil {
t.Errorf("Did not expect an error on update failure, got %v", err)
}
preconditions = &ScalePrecondition{3, ""}
scaleFunc = ScaleCondition(scaler, preconditions, namespace, name, count, nil)
pass, err = scaleFunc()
if err == nil {
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t.Error("Expected error on precondition failure")
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}
}
func deployment() *extensions.Deployment {
return &extensions.Deployment{
ObjectMeta: metav1.ObjectMeta{
Namespace: metav1.NamespaceDefault,
Name: "foo",
},
}
}
func TestDeploymentScale(t *testing.T) {
fake := fake.NewSimpleClientset(deployment())
scaler := DeploymentScaler{fake.Extensions()}
preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
scaler.Scale("default", name, count, &preconditions, nil, nil)
actions := fake.Actions()
if len(actions) != 2 {
t.Errorf("unexpected actions: %v, expected 2 actions (get, update)", actions)
}
if action, ok := actions[0].(testcore.GetAction); !ok || action.GetResource().GroupResource() != extensions.Resource("deployments") || action.GetName() != name {
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t.Errorf("unexpected action: %v, expected get-deployment %s", actions[0], name)
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}
if action, ok := actions[1].(testcore.UpdateAction); !ok || action.GetResource().GroupResource() != extensions.Resource("deployments") || action.GetObject().(*extensions.Deployment).Spec.Replicas != int32(count) {
t.Errorf("unexpected action %v, expected update-deployment with replicas = %d", actions[1], count)
}
}
func TestDeploymentScaleInvalid(t *testing.T) {
fake := &ErrorDeploymentClient{DeploymentsGetter: fake.NewSimpleClientset().Extensions(), invalid: true}
scaler := DeploymentScaler{fake}
preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
namespace := "default"
scaleFunc := ScaleCondition(&scaler, &preconditions, namespace, name, count, nil)
pass, err := scaleFunc()
if pass {
t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
}
e, ok := err.(ScaleError)
if err == nil || !ok || e.FailureType != ScaleUpdateFailure {
t.Errorf("Expected error on invalid update failure, got %v", err)
}
}
func TestDeploymentScaleFailsPreconditions(t *testing.T) {
fake := fake.NewSimpleClientset(&extensions.Deployment{
ObjectMeta: metav1.ObjectMeta{
Namespace: metav1.NamespaceDefault,
Name: "foo",
},
Spec: extensions.DeploymentSpec{
Replicas: 10,
},
})
scaler := DeploymentScaler{fake.Extensions()}
preconditions := ScalePrecondition{2, ""}
count := uint(3)
name := "foo"
scaler.Scale("default", name, count, &preconditions, nil, nil)
actions := fake.Actions()
if len(actions) != 1 {
t.Errorf("unexpected actions: %v, expected 1 actions (get)", actions)
}
if action, ok := actions[0].(testcore.GetAction); !ok || action.GetResource().GroupResource() != extensions.Resource("deployments") || action.GetName() != name {
t.Errorf("unexpected action: %v, expected get-deployment %s", actions[0], name)
}
}
func TestValidateDeployment(t *testing.T) {
zero, ten, twenty := int32(0), int32(10), int32(20)
tests := []struct {
preconditions ScalePrecondition
deployment extensions.Deployment
expectError bool
test string
}{
{
preconditions: ScalePrecondition{-1, ""},
expectError: false,
test: "defaults",
},
{
preconditions: ScalePrecondition{-1, ""},
deployment: extensions.Deployment{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: extensions.DeploymentSpec{
Replicas: ten,
},
},
expectError: false,
test: "defaults 2",
},
{
preconditions: ScalePrecondition{0, ""},
deployment: extensions.Deployment{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: extensions.DeploymentSpec{
Replicas: zero,
},
},
expectError: false,
test: "size matches",
},
{
preconditions: ScalePrecondition{-1, "foo"},
deployment: extensions.Deployment{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: extensions.DeploymentSpec{
Replicas: ten,
},
},
expectError: false,
test: "resource version matches",
},
{
preconditions: ScalePrecondition{10, "foo"},
deployment: extensions.Deployment{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: extensions.DeploymentSpec{
Replicas: ten,
},
},
expectError: false,
test: "both match",
},
{
preconditions: ScalePrecondition{10, "foo"},
deployment: extensions.Deployment{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: extensions.DeploymentSpec{
Replicas: twenty,
},
},
expectError: true,
test: "size different",
},
{
preconditions: ScalePrecondition{10, "foo"},
deployment: extensions.Deployment{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
},
expectError: true,
test: "no replicas",
},
{
preconditions: ScalePrecondition{10, "foo"},
deployment: extensions.Deployment{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "bar",
},
Spec: extensions.DeploymentSpec{
Replicas: ten,
},
},
expectError: true,
test: "version different",
},
{
preconditions: ScalePrecondition{10, "foo"},
deployment: extensions.Deployment{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "bar",
},
Spec: extensions.DeploymentSpec{
Replicas: twenty,
},
},
expectError: true,
test: "both different",
},
}
for _, test := range tests {
err := test.preconditions.ValidateDeployment(&test.deployment)
if err != nil && !test.expectError {
t.Errorf("unexpected error: %v (%s)", err, test.test)
}
if err == nil && test.expectError {
t.Errorf("expected an error: %v (%s)", err, test.test)
}
}
}
2018-03-06 22:33:18 +00:00
type ErrorStatefulSets struct {
appsclient.StatefulSetInterface
conflict bool
invalid bool
}
func (c *ErrorStatefulSets) Update(statefulSet *apps.StatefulSet) (*apps.StatefulSet, error) {
switch {
case c.invalid:
return nil, kerrors.NewInvalid(api.Kind(statefulSet.Kind), statefulSet.Name, nil)
case c.conflict:
return nil, kerrors.NewConflict(api.Resource(statefulSet.Kind), statefulSet.Name, nil)
}
return nil, errors.New("statefulSet update failure")
}
func (c *ErrorStatefulSets) Get(name string, options metav1.GetOptions) (*apps.StatefulSet, error) {
return &apps.StatefulSet{
Spec: apps.StatefulSetSpec{
Replicas: 0,
},
}, nil
}
type ErrorStatefulSetClient struct {
appsclient.StatefulSetsGetter
conflict bool
invalid bool
}
func (c *ErrorStatefulSetClient) StatefulSets(namespace string) appsclient.StatefulSetInterface {
return &ErrorStatefulSets{
StatefulSetInterface: c.StatefulSetsGetter.StatefulSets(namespace),
invalid: c.invalid,
conflict: c.conflict,
}
}
func statefulSet() *apps.StatefulSet {
return &apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{
Namespace: metav1.NamespaceDefault,
Name: "foo",
},
}
}
func TestStatefulSetScale(t *testing.T) {
fake := fake.NewSimpleClientset(statefulSet())
scaler := StatefulSetScaler{fake.Apps()}
preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
scaler.Scale("default", name, count, &preconditions, nil, nil)
actions := fake.Actions()
if len(actions) != 2 {
t.Errorf("unexpected actions: %v, expected 2 actions (get, update)", actions)
}
if action, ok := actions[0].(testcore.GetAction); !ok || action.GetResource().GroupResource() != apps.Resource("statefulsets") || action.GetName() != name {
t.Errorf("unexpected action: %v, expected get-statefulsets %s", actions[0], name)
}
if action, ok := actions[1].(testcore.UpdateAction); !ok || action.GetResource().GroupResource() != apps.Resource("statefulsets") || action.GetObject().(*apps.StatefulSet).Spec.Replicas != int32(count) {
t.Errorf("unexpected action %v, expected update-statefulset with replicas = %d", actions[1], count)
}
}
func TestStatefulSetScaleRetry(t *testing.T) {
fake := &ErrorStatefulSetClient{StatefulSetsGetter: fake.NewSimpleClientset().Apps(), conflict: true}
scaler := &StatefulSetScaler{fake}
preconditions := &ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
namespace := "default"
scaleFunc := ScaleCondition(scaler, preconditions, namespace, name, count, nil)
pass, err := scaleFunc()
if pass != false {
t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
}
if err != nil {
t.Errorf("Did not expect an error on update failure, got %v", err)
}
preconditions = &ScalePrecondition{3, ""}
scaleFunc = ScaleCondition(scaler, preconditions, namespace, name, count, nil)
pass, err = scaleFunc()
if err == nil {
t.Error("Expected error on precondition failure")
}
}
func TestStatefulSetScaleInvalid(t *testing.T) {
fake := &ErrorStatefulSetClient{StatefulSetsGetter: fake.NewSimpleClientset().Apps(), invalid: true}
scaler := StatefulSetScaler{fake}
preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
namespace := "default"
scaleFunc := ScaleCondition(&scaler, &preconditions, namespace, name, count, nil)
pass, err := scaleFunc()
if pass {
t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
}
e, ok := err.(ScaleError)
if err == nil || !ok || e.FailureType != ScaleUpdateFailure {
t.Errorf("Expected error on invalid update failure, got %v", err)
}
}
func TestStatefulSetScaleFailsPreconditions(t *testing.T) {
fake := fake.NewSimpleClientset(&apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{
Namespace: metav1.NamespaceDefault,
Name: "foo",
},
Spec: apps.StatefulSetSpec{
Replicas: 10,
},
})
scaler := StatefulSetScaler{fake.Apps()}
preconditions := ScalePrecondition{2, ""}
count := uint(3)
name := "foo"
scaler.Scale("default", name, count, &preconditions, nil, nil)
actions := fake.Actions()
if len(actions) != 1 {
t.Errorf("unexpected actions: %v, expected 1 actions (get)", actions)
}
if action, ok := actions[0].(testcore.GetAction); !ok || action.GetResource().GroupResource() != apps.Resource("statefulsets") || action.GetName() != name {
t.Errorf("unexpected action: %v, expected get-statefulset %s", actions[0], name)
}
}
func TestValidateStatefulSet(t *testing.T) {
zero, ten, twenty := int32(0), int32(10), int32(20)
tests := []struct {
preconditions ScalePrecondition
statefulset apps.StatefulSet
expectError bool
test string
}{
{
preconditions: ScalePrecondition{-1, ""},
expectError: false,
test: "defaults",
},
{
preconditions: ScalePrecondition{-1, ""},
statefulset: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: apps.StatefulSetSpec{
Replicas: ten,
},
},
expectError: false,
test: "defaults 2",
},
{
preconditions: ScalePrecondition{0, ""},
statefulset: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: apps.StatefulSetSpec{
Replicas: zero,
},
},
expectError: false,
test: "size matches",
},
{
preconditions: ScalePrecondition{-1, "foo"},
statefulset: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: apps.StatefulSetSpec{
Replicas: ten,
},
},
expectError: false,
test: "resource version matches",
},
{
preconditions: ScalePrecondition{10, "foo"},
statefulset: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: apps.StatefulSetSpec{
Replicas: ten,
},
},
expectError: false,
test: "both match",
},
{
preconditions: ScalePrecondition{10, "foo"},
statefulset: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: apps.StatefulSetSpec{
Replicas: twenty,
},
},
expectError: true,
test: "size different",
},
{
preconditions: ScalePrecondition{10, "foo"},
statefulset: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
},
expectError: true,
test: "no replicas",
},
{
preconditions: ScalePrecondition{10, "foo"},
statefulset: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "bar",
},
Spec: apps.StatefulSetSpec{
Replicas: ten,
},
},
expectError: true,
test: "version different",
},
{
preconditions: ScalePrecondition{10, "foo"},
statefulset: apps.StatefulSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "bar",
},
Spec: apps.StatefulSetSpec{
Replicas: twenty,
},
},
expectError: true,
test: "both different",
},
}
for _, test := range tests {
err := test.preconditions.ValidateStatefulSet(&test.statefulset)
if err != nil && !test.expectError {
t.Errorf("unexpected error: %v (%s)", err, test.test)
}
if err == nil && test.expectError {
t.Errorf("expected an error: %v (%s)", err, test.test)
}
}
}
type ErrorReplicaSets struct {
extensionsclient.ReplicaSetInterface
conflict bool
invalid bool
}
func (c *ErrorReplicaSets) Update(replicaSets *extensions.ReplicaSet) (*extensions.ReplicaSet, error) {
switch {
case c.invalid:
return nil, kerrors.NewInvalid(api.Kind(replicaSets.Kind), replicaSets.Name, nil)
case c.conflict:
return nil, kerrors.NewConflict(api.Resource(replicaSets.Kind), replicaSets.Name, nil)
}
return nil, errors.New("replicaSets update failure")
}
func (c *ErrorReplicaSets) Get(name string, options metav1.GetOptions) (*extensions.ReplicaSet, error) {
return &extensions.ReplicaSet{
Spec: extensions.ReplicaSetSpec{
Replicas: 0,
},
}, nil
}
type ErrorReplicaSetClient struct {
extensionsclient.ReplicaSetsGetter
conflict bool
invalid bool
}
func (c *ErrorReplicaSetClient) ReplicaSets(namespace string) extensionsclient.ReplicaSetInterface {
return &ErrorReplicaSets{
ReplicaSetInterface: c.ReplicaSetsGetter.ReplicaSets(namespace),
invalid: c.invalid,
conflict: c.conflict,
}
}
func replicaSet() *extensions.ReplicaSet {
return &extensions.ReplicaSet{
ObjectMeta: metav1.ObjectMeta{
Namespace: metav1.NamespaceDefault,
Name: "foo",
},
}
}
func TestReplicaSetScale(t *testing.T) {
fake := fake.NewSimpleClientset(replicaSet())
scaler := ReplicaSetScaler{fake.Extensions()}
preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
scaler.Scale("default", name, count, &preconditions, nil, nil)
actions := fake.Actions()
if len(actions) != 2 {
t.Errorf("unexpected actions: %v, expected 2 actions (get, update)", actions)
}
if action, ok := actions[0].(testcore.GetAction); !ok || action.GetResource().GroupResource() != extensions.Resource("replicasets") || action.GetName() != name {
t.Errorf("unexpected action: %v, expected get-replicationSet %s", actions[0], name)
}
if action, ok := actions[1].(testcore.UpdateAction); !ok || action.GetResource().GroupResource() != extensions.Resource("replicasets") || action.GetObject().(*extensions.ReplicaSet).Spec.Replicas != int32(count) {
t.Errorf("unexpected action %v, expected update-replicaSet with replicas = %d", actions[1], count)
}
}
func TestReplicaSetScaleRetry(t *testing.T) {
fake := &ErrorReplicaSetClient{ReplicaSetsGetter: fake.NewSimpleClientset().Extensions(), conflict: true}
scaler := &ReplicaSetScaler{fake}
preconditions := &ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
namespace := "default"
scaleFunc := ScaleCondition(scaler, preconditions, namespace, name, count, nil)
pass, err := scaleFunc()
if pass != false {
t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
}
if err != nil {
t.Errorf("Did not expect an error on update failure, got %v", err)
}
preconditions = &ScalePrecondition{3, ""}
scaleFunc = ScaleCondition(scaler, preconditions, namespace, name, count, nil)
pass, err = scaleFunc()
if err == nil {
t.Error("Expected error on precondition failure")
}
}
func TestReplicaSetScaleInvalid(t *testing.T) {
fake := &ErrorReplicaSetClient{ReplicaSetsGetter: fake.NewSimpleClientset().Extensions(), invalid: true}
scaler := ReplicaSetScaler{fake}
preconditions := ScalePrecondition{-1, ""}
count := uint(3)
name := "foo"
namespace := "default"
scaleFunc := ScaleCondition(&scaler, &preconditions, namespace, name, count, nil)
pass, err := scaleFunc()
if pass {
t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
}
e, ok := err.(ScaleError)
if err == nil || !ok || e.FailureType != ScaleUpdateFailure {
t.Errorf("Expected error on invalid update failure, got %v", err)
}
}
func TestReplicaSetsGetterFailsPreconditions(t *testing.T) {
fake := fake.NewSimpleClientset(&extensions.ReplicaSet{
ObjectMeta: metav1.ObjectMeta{
Namespace: metav1.NamespaceDefault,
Name: "foo",
},
Spec: extensions.ReplicaSetSpec{
Replicas: 10,
},
})
scaler := ReplicaSetScaler{fake.Extensions()}
preconditions := ScalePrecondition{2, ""}
count := uint(3)
name := "foo"
scaler.Scale("default", name, count, &preconditions, nil, nil)
actions := fake.Actions()
if len(actions) != 1 {
t.Errorf("unexpected actions: %v, expected 1 actions (get)", actions)
}
if action, ok := actions[0].(testcore.GetAction); !ok || action.GetResource().GroupResource() != extensions.Resource("replicasets") || action.GetName() != name {
t.Errorf("unexpected action: %v, expected get-replicaSets %s", actions[0], name)
}
}
func TestValidateReplicaSets(t *testing.T) {
zero, ten, twenty := int32(0), int32(10), int32(20)
tests := []struct {
preconditions ScalePrecondition
replicaSets extensions.ReplicaSet
expectError bool
test string
}{
{
preconditions: ScalePrecondition{-1, ""},
expectError: false,
test: "defaults",
},
{
preconditions: ScalePrecondition{-1, ""},
replicaSets: extensions.ReplicaSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: extensions.ReplicaSetSpec{
Replicas: ten,
},
},
expectError: false,
test: "defaults 2",
},
{
preconditions: ScalePrecondition{0, ""},
replicaSets: extensions.ReplicaSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: extensions.ReplicaSetSpec{
Replicas: zero,
},
},
expectError: false,
test: "size matches",
},
{
preconditions: ScalePrecondition{-1, "foo"},
replicaSets: extensions.ReplicaSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: extensions.ReplicaSetSpec{
Replicas: ten,
},
},
expectError: false,
test: "resource version matches",
},
{
preconditions: ScalePrecondition{10, "foo"},
replicaSets: extensions.ReplicaSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: extensions.ReplicaSetSpec{
Replicas: ten,
},
},
expectError: false,
test: "both match",
},
{
preconditions: ScalePrecondition{10, "foo"},
replicaSets: extensions.ReplicaSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
Spec: extensions.ReplicaSetSpec{
Replicas: twenty,
},
},
expectError: true,
test: "size different",
},
{
preconditions: ScalePrecondition{10, "foo"},
replicaSets: extensions.ReplicaSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "foo",
},
},
expectError: true,
test: "no replicas",
},
{
preconditions: ScalePrecondition{10, "foo"},
replicaSets: extensions.ReplicaSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "bar",
},
Spec: extensions.ReplicaSetSpec{
Replicas: ten,
},
},
expectError: true,
test: "version different",
},
{
preconditions: ScalePrecondition{10, "foo"},
replicaSets: extensions.ReplicaSet{
ObjectMeta: metav1.ObjectMeta{
ResourceVersion: "bar",
},
Spec: extensions.ReplicaSetSpec{
Replicas: twenty,
},
},
expectError: true,
test: "both different",
},
}
for _, test := range tests {
err := test.preconditions.ValidateReplicaSet(&test.replicaSets)
if err != nil && !test.expectError {
t.Errorf("unexpected error: %v (%s)", err, test.test)
}
if err == nil && test.expectError {
t.Errorf("expected an error: %v (%s)", err, test.test)
}
}
}
// TestGenericScaleSimple exercises GenericScaler.ScaleSimple method
func TestGenericScaleSimple(t *testing.T) {
// test data
discoveryResources := []*metav1.APIResourceList{
{
GroupVersion: appsv1beta2.SchemeGroupVersion.String(),
APIResources: []metav1.APIResource{
{Name: "deployments", Namespaced: true, Kind: "Deployment"},
{Name: "deployments/scale", Namespaced: true, Kind: "Scale", Group: "apps", Version: "v1beta2"},
},
},
}
appsV1beta2Scale := &appsv1beta2.Scale{
TypeMeta: metav1.TypeMeta{
Kind: "Scale",
APIVersion: appsv1beta2.SchemeGroupVersion.String(),
},
ObjectMeta: metav1.ObjectMeta{
Name: "abc",
},
Spec: appsv1beta2.ScaleSpec{Replicas: 10},
Status: appsv1beta2.ScaleStatus{
Replicas: 10,
},
}
pathsResources := map[string]runtime.Object{
"/apis/apps/v1beta2/namespaces/default/deployments/abc/scale": appsV1beta2Scale,
}
scaleClient, err := fakeScaleClient(discoveryResources, pathsResources)
if err != nil {
t.Fatal(err)
}
// test scenarios
scenarios := []struct {
name string
precondition ScalePrecondition
newSize int
targetGR schema.GroupResource
resName string
scaleGetter scale.ScalesGetter
expectError bool
}{
// scenario 1: scale up the "abc" deployment
{
name: "scale up the \"abc\" deployment",
precondition: ScalePrecondition{10, ""},
newSize: 20,
targetGR: schema.GroupResource{Group: "apps", Resource: "deployment"},
resName: "abc",
scaleGetter: scaleClient,
},
// scenario 2: scale down the "abc" deployment
{
name: "scale down the \"abs\" deplyment",
precondition: ScalePrecondition{20, ""},
newSize: 5,
targetGR: schema.GroupResource{Group: "apps", Resource: "deployment"},
resName: "abc",
scaleGetter: scaleClient,
},
// scenario 3: precondition error, expected size is 1,
// note that the previous scenario (2) set the size to 5
{
name: "precondition error, expected size is 1",
precondition: ScalePrecondition{1, ""},
newSize: 5,
targetGR: schema.GroupResource{Group: "apps", Resource: "deployment"},
resName: "abc",
scaleGetter: scaleClient,
expectError: true,
},
// scenario 4: precondition is not validated when the precondition size is set to -1
{
name: "precondition is not validated when the size is set to -1",
precondition: ScalePrecondition{-1, ""},
newSize: 5,
targetGR: schema.GroupResource{Group: "apps", Resource: "deployment"},
resName: "abc",
scaleGetter: scaleClient,
},
// scenario 5: precondition error, resource version mismatch
{
name: "precondition error, resource version mismatch",
precondition: ScalePrecondition{5, "v1"},
newSize: 5,
targetGR: schema.GroupResource{Group: "apps", Resource: "deployment"},
resName: "abc",
scaleGetter: scaleClient,
expectError: true,
},
}
// act
for index, scenario := range scenarios {
t.Run(fmt.Sprintf("running scenario %d: %s", index+1, scenario.name), func(t *testing.T) {
target := ScalerFor(schema.GroupKind{}, nil, scenario.scaleGetter, scenario.targetGR)
resVersion, err := target.ScaleSimple("default", scenario.resName, &scenario.precondition, uint(scenario.newSize))
if scenario.expectError && err == nil {
t.Fatal("expected an error but was not returned")
}
if !scenario.expectError && err != nil {
t.Fatalf("unexpected error: %v", err)
}
if resVersion != "" {
t.Fatalf("unexpected resource version returned = %s, wanted = %s", resVersion, "")
}
})
}
}
// TestGenericScale exercises GenericScaler.Scale method
func TestGenericScale(t *testing.T) {
// test data
discoveryResources := []*metav1.APIResourceList{
{
GroupVersion: appsv1beta2.SchemeGroupVersion.String(),
APIResources: []metav1.APIResource{
{Name: "deployments", Namespaced: true, Kind: "Deployment"},
{Name: "deployments/scale", Namespaced: true, Kind: "Scale", Group: "apps", Version: "v1beta2"},
},
},
}
appsV1beta2Scale := &appsv1beta2.Scale{
TypeMeta: metav1.TypeMeta{
Kind: "Scale",
APIVersion: appsv1beta2.SchemeGroupVersion.String(),
},
ObjectMeta: metav1.ObjectMeta{
Name: "abc",
},
Spec: appsv1beta2.ScaleSpec{Replicas: 10},
Status: appsv1beta2.ScaleStatus{
Replicas: 10,
},
}
pathsResources := map[string]runtime.Object{
"/apis/apps/v1beta2/namespaces/default/deployments/abc/scale": appsV1beta2Scale,
}
scaleClient, err := fakeScaleClient(discoveryResources, pathsResources)
if err != nil {
t.Fatal(err)
}
// test scenarios
scenarios := []struct {
name string
precondition ScalePrecondition
newSize int
targetGR schema.GroupResource
resName string
scaleGetter scale.ScalesGetter
waitForReplicas *RetryParams
expectError bool
}{
// scenario 1: scale up the "abc" deployment
{
name: "scale up the \"abc\" deployment",
precondition: ScalePrecondition{10, ""},
newSize: 20,
targetGR: schema.GroupResource{Group: "apps", Resource: "deployment"},
resName: "abc",
scaleGetter: scaleClient,
},
// scenario 2: a resource name cannot be empty
{
name: "a resource name cannot be empty",
precondition: ScalePrecondition{10, ""},
newSize: 20,
targetGR: schema.GroupResource{Group: "apps", Resource: "deployment"},
resName: "",
scaleGetter: scaleClient,
expectError: true,
},
// scenario 3: wait for replicas error due to status.Replicas != spec.Replicas
{
name: "wait for replicas error due to status.Replicas != spec.Replicas",
precondition: ScalePrecondition{10, ""},
newSize: 20,
targetGR: schema.GroupResource{Group: "apps", Resource: "deployment"},
resName: "abc",
scaleGetter: scaleClient,
waitForReplicas: &RetryParams{time.Duration(5 * time.Second), time.Duration(5 * time.Second)},
expectError: true,
},
}
// act
for index, scenario := range scenarios {
t.Run(fmt.Sprintf("running scenario %d: %s", index+1, scenario.name), func(t *testing.T) {
target := ScalerFor(schema.GroupKind{}, nil, scenario.scaleGetter, scenario.targetGR)
err := target.Scale("default", scenario.resName, uint(scenario.newSize), &scenario.precondition, nil, scenario.waitForReplicas)
if scenario.expectError && err == nil {
t.Fatal("expected an error but was not returned")
}
if !scenario.expectError && err != nil {
t.Fatalf("unexpected error: %v", err)
}
})
}
}
func fakeScaleClient(discoveryResources []*metav1.APIResourceList, pathsResources map[string]runtime.Object) (scale.ScalesGetter, error) {
fakeDiscoveryClient := &fakedisco.FakeDiscovery{Fake: &testcore.Fake{}}
fakeDiscoveryClient.Resources = discoveryResources
restMapperRes, err := discovery.GetAPIGroupResources(fakeDiscoveryClient)
if err != nil {
return nil, err
}
restMapper := discovery.NewRESTMapper(restMapperRes, apimeta.InterfacesForUnstructured)
codecs := serializer.NewCodecFactory(scale.NewScaleConverter().Scheme())
fakeReqHandler := func(req *http.Request) (*http.Response, error) {
path := req.URL.Path
scale, isScalePath := pathsResources[path]
if !isScalePath {
return nil, fmt.Errorf("unexpected request for URL %q with method %q", req.URL.String(), req.Method)
}
switch req.Method {
case "GET":
res, err := json.Marshal(scale)
if err != nil {
return nil, err
}
return &http.Response{StatusCode: 200, Header: defaultHeaders(), Body: bytesBody(res)}, nil
case "PUT":
decoder := codecs.UniversalDeserializer()
body, err := ioutil.ReadAll(req.Body)
if err != nil {
return nil, err
}
newScale, newScaleGVK, err := decoder.Decode(body, nil, nil)
if err != nil {
return nil, fmt.Errorf("unexpected request body: %v", err)
}
if *newScaleGVK != scale.GetObjectKind().GroupVersionKind() {
return nil, fmt.Errorf("unexpected scale API version %s (expected %s)", newScaleGVK.String(), scale.GetObjectKind().GroupVersionKind().String())
}
res, err := json.Marshal(newScale)
if err != nil {
return nil, err
}
pathsResources[path] = newScale
return &http.Response{StatusCode: 200, Header: defaultHeaders(), Body: bytesBody(res)}, nil
default:
return nil, fmt.Errorf("unexpected request for URL %q with method %q", req.URL.String(), req.Method)
}
}
fakeClient := &fakerest.RESTClient{
Client: fakerest.CreateHTTPClient(fakeReqHandler),
NegotiatedSerializer: serializer.DirectCodecFactory{
CodecFactory: serializer.NewCodecFactory(scale.NewScaleConverter().Scheme()),
},
GroupVersion: schema.GroupVersion{},
VersionedAPIPath: "/not/a/real/path",
}
resolver := scale.NewDiscoveryScaleKindResolver(fakeDiscoveryClient)
client := scale.New(fakeClient, restMapper, dynamic.LegacyAPIPathResolverFunc, resolver)
return client, nil
}
func bytesBody(bodyBytes []byte) io.ReadCloser {
return ioutil.NopCloser(bytes.NewReader(bodyBytes))
}
func defaultHeaders() http.Header {
header := http.Header{}
header.Set("Content-Type", runtime.ContentTypeJSON)
return header
}