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			499 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
/*
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Copyright 2014 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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    http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kubectl
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import (
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	"errors"
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	"testing"
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	"k8s.io/kubernetes/pkg/api"
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	kerrors "k8s.io/kubernetes/pkg/api/errors"
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	"k8s.io/kubernetes/pkg/apis/experimental"
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	client "k8s.io/kubernetes/pkg/client/unversioned"
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	"k8s.io/kubernetes/pkg/client/unversioned/testclient"
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)
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type ErrorReplicationControllers struct {
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	testclient.FakeReplicationControllers
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	invalid bool
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}
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func (c *ErrorReplicationControllers) Update(controller *api.ReplicationController) (*api.ReplicationController, error) {
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	if c.invalid {
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		return nil, kerrors.NewInvalid(controller.Kind, controller.Name, nil)
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	}
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	return nil, errors.New("Replication controller update failure")
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}
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type ErrorReplicationControllerClient struct {
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	testclient.Fake
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	invalid bool
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}
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func (c *ErrorReplicationControllerClient) ReplicationControllers(namespace string) client.ReplicationControllerInterface {
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	return &ErrorReplicationControllers{testclient.FakeReplicationControllers{Fake: &c.Fake, Namespace: namespace}, c.invalid}
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}
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type ErrorJobs struct {
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	testclient.FakeJobs
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	invalid bool
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}
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func (c *ErrorJobs) Update(job *experimental.Job) (*experimental.Job, error) {
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	if c.invalid {
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		return nil, kerrors.NewInvalid(job.Kind, job.Name, nil)
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	}
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	return nil, errors.New("Job update failure")
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}
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func (c *ErrorJobs) Get(name string) (*experimental.Job, error) {
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	zero := 0
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	return &experimental.Job{
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		Spec: experimental.JobSpec{
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			Parallelism: &zero,
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		},
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	}, nil
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}
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type ErrorJobClient struct {
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	testclient.FakeExperimental
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	invalid bool
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}
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func (c *ErrorJobClient) Jobs(namespace string) client.JobInterface {
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	return &ErrorJobs{testclient.FakeJobs{Fake: &c.FakeExperimental, Namespace: namespace}, c.invalid}
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}
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type ErrorExperimentalClient struct {
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	testclient.Fake
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	invalid bool
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}
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func (c *ErrorExperimentalClient) Experimental() client.ExperimentalInterface {
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	return &ErrorJobClient{testclient.FakeExperimental{&c.Fake}, c.invalid}
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}
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func TestReplicationControllerScaleRetry(t *testing.T) {
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	fake := &ErrorReplicationControllerClient{Fake: testclient.Fake{}, invalid: false}
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	scaler := ReplicationControllerScaler{fake}
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	preconditions := ScalePrecondition{-1, ""}
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	count := uint(3)
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	name := "foo"
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	namespace := "default"
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	scaleFunc := ScaleCondition(&scaler, &preconditions, namespace, name, count)
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	pass, err := scaleFunc()
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	if pass {
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		t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
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	}
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	if err != nil {
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		t.Errorf("Did not expect an error on update failure, got %v", err)
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	}
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	preconditions = ScalePrecondition{3, ""}
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	scaleFunc = ScaleCondition(&scaler, &preconditions, namespace, name, count)
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	pass, err = scaleFunc()
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	if err == nil {
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		t.Errorf("Expected error on precondition failure")
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	}
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}
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func TestReplicationControllerScaleInvalid(t *testing.T) {
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	fake := &ErrorReplicationControllerClient{Fake: testclient.Fake{}, invalid: true}
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	scaler := ReplicationControllerScaler{fake}
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	preconditions := ScalePrecondition{-1, ""}
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	count := uint(3)
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	name := "foo"
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	namespace := "default"
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	scaleFunc := ScaleCondition(&scaler, &preconditions, namespace, name, count)
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	pass, err := scaleFunc()
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	if pass {
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		t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
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	}
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	e, ok := err.(ControllerScaleError)
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	if err == nil || !ok || e.FailureType != ControllerScaleUpdateInvalidFailure {
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		t.Errorf("Expected error on invalid update failure, got %v", err)
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	}
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}
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func TestReplicationControllerScale(t *testing.T) {
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	fake := &testclient.Fake{}
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	scaler := ReplicationControllerScaler{fake}
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	preconditions := ScalePrecondition{-1, ""}
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	count := uint(3)
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	name := "foo"
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	scaler.Scale("default", name, count, &preconditions, nil, nil)
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	actions := fake.Actions()
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	if len(actions) != 2 {
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		t.Errorf("unexpected actions: %v, expected 2 actions (get, update)", actions)
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	}
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	if action, ok := actions[0].(testclient.GetAction); !ok || action.GetResource() != "replicationcontrollers" || action.GetName() != name {
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		t.Errorf("unexpected action: %v, expected get-replicationController %s", actions[0], name)
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	}
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	if action, ok := actions[1].(testclient.UpdateAction); !ok || action.GetResource() != "replicationcontrollers" || action.GetObject().(*api.ReplicationController).Spec.Replicas != int(count) {
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		t.Errorf("unexpected action %v, expected update-replicationController with replicas = %d", actions[1], count)
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	}
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}
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func TestReplicationControllerScaleFailsPreconditions(t *testing.T) {
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	fake := testclient.NewSimpleFake(&api.ReplicationController{
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		Spec: api.ReplicationControllerSpec{
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			Replicas: 10,
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		},
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	})
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	scaler := ReplicationControllerScaler{fake}
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	preconditions := ScalePrecondition{2, ""}
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	count := uint(3)
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	name := "foo"
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	scaler.Scale("default", name, count, &preconditions, nil, nil)
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	actions := fake.Actions()
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	if len(actions) != 1 {
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		t.Errorf("unexpected actions: %v, expected 1 action (get)", actions)
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	}
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	if action, ok := actions[0].(testclient.GetAction); !ok || action.GetResource() != "replicationcontrollers" || action.GetName() != name {
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		t.Errorf("unexpected action: %v, expected get-replicationController %s", actions[0], name)
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	}
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}
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func TestValidateReplicationController(t *testing.T) {
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	tests := []struct {
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		preconditions ScalePrecondition
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		controller    api.ReplicationController
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		expectError   bool
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		test          string
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	}{
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		{
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			preconditions: ScalePrecondition{-1, ""},
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			expectError:   false,
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			test:          "defaults",
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		},
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		{
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			preconditions: ScalePrecondition{-1, ""},
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			controller: api.ReplicationController{
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				ObjectMeta: api.ObjectMeta{
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					ResourceVersion: "foo",
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				},
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				Spec: api.ReplicationControllerSpec{
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					Replicas: 10,
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				},
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			},
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			expectError: false,
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			test:        "defaults 2",
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		},
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		{
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			preconditions: ScalePrecondition{0, ""},
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			controller: api.ReplicationController{
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				ObjectMeta: api.ObjectMeta{
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					ResourceVersion: "foo",
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				},
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				Spec: api.ReplicationControllerSpec{
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					Replicas: 0,
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				},
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			},
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			expectError: false,
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			test:        "size matches",
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		},
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		{
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			preconditions: ScalePrecondition{-1, "foo"},
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			controller: api.ReplicationController{
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				ObjectMeta: api.ObjectMeta{
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					ResourceVersion: "foo",
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				},
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				Spec: api.ReplicationControllerSpec{
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					Replicas: 10,
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				},
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			},
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			expectError: false,
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			test:        "resource version matches",
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		},
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		{
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			preconditions: ScalePrecondition{10, "foo"},
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			controller: api.ReplicationController{
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				ObjectMeta: api.ObjectMeta{
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					ResourceVersion: "foo",
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				},
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				Spec: api.ReplicationControllerSpec{
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					Replicas: 10,
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				},
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			},
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			expectError: false,
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			test:        "both match",
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		},
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		{
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			preconditions: ScalePrecondition{10, "foo"},
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			controller: api.ReplicationController{
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				ObjectMeta: api.ObjectMeta{
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					ResourceVersion: "foo",
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				},
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				Spec: api.ReplicationControllerSpec{
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					Replicas: 20,
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				},
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						|
			},
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			expectError: true,
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			test:        "size different",
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		},
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		{
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			preconditions: ScalePrecondition{10, "foo"},
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			controller: api.ReplicationController{
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				ObjectMeta: api.ObjectMeta{
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					ResourceVersion: "bar",
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						|
				},
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				Spec: api.ReplicationControllerSpec{
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					Replicas: 10,
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						|
				},
 | 
						|
			},
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			expectError: true,
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			test:        "version different",
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						|
		},
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		{
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			preconditions: ScalePrecondition{10, "foo"},
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			controller: api.ReplicationController{
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				ObjectMeta: api.ObjectMeta{
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					ResourceVersion: "bar",
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						|
				},
 | 
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				Spec: api.ReplicationControllerSpec{
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					Replicas: 20,
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				},
 | 
						|
			},
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			expectError: true,
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			test:        "both different",
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						|
		},
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						|
	}
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	for _, test := range tests {
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		err := test.preconditions.ValidateReplicationController(&test.controller)
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						|
		if err != nil && !test.expectError {
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			t.Errorf("unexpected error: %v (%s)", err, test.test)
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						|
		}
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						|
		if err == nil && test.expectError {
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			t.Errorf("unexpected non-error: %v (%s)", err, test.test)
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		}
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	}
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}
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 | 
						|
func TestJobScaleRetry(t *testing.T) {
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	fake := &ErrorExperimentalClient{Fake: testclient.Fake{}, invalid: false}
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	scaler := JobScaler{fake}
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						|
	preconditions := ScalePrecondition{-1, ""}
 | 
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	count := uint(3)
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						|
	name := "foo"
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	namespace := "default"
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						|
 | 
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	scaleFunc := ScaleCondition(&scaler, &preconditions, namespace, name, count)
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	pass, err := scaleFunc()
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						|
	if pass != false {
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		t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
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						|
	}
 | 
						|
	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)
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	pass, err = scaleFunc()
 | 
						|
	if err == nil {
 | 
						|
		t.Errorf("Expected error on precondition failure")
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	}
 | 
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}
 | 
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 | 
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func TestJobScale(t *testing.T) {
 | 
						|
	fake := &testclient.Fake{}
 | 
						|
	scaler := JobScaler{fake}
 | 
						|
	preconditions := ScalePrecondition{-1, ""}
 | 
						|
	count := uint(3)
 | 
						|
	name := "foo"
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						|
	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].(testclient.GetAction); !ok || action.GetResource() != "jobs" || action.GetName() != name {
 | 
						|
		t.Errorf("unexpected action: %v, expected get-replicationController %s", actions[0], name)
 | 
						|
	}
 | 
						|
	if action, ok := actions[1].(testclient.UpdateAction); !ok || action.GetResource() != "jobs" || *action.GetObject().(*experimental.Job).Spec.Parallelism != int(count) {
 | 
						|
		t.Errorf("unexpected action %v, expected update-job with parallelism = %d", actions[1], count)
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestJobScaleInvalid(t *testing.T) {
 | 
						|
	fake := &ErrorExperimentalClient{Fake: testclient.Fake{}, invalid: true}
 | 
						|
	scaler := JobScaler{fake}
 | 
						|
	preconditions := ScalePrecondition{-1, ""}
 | 
						|
	count := uint(3)
 | 
						|
	name := "foo"
 | 
						|
	namespace := "default"
 | 
						|
 | 
						|
	scaleFunc := ScaleCondition(&scaler, &preconditions, namespace, name, count)
 | 
						|
	pass, err := scaleFunc()
 | 
						|
	if pass {
 | 
						|
		t.Errorf("Expected an update failure to return pass = false, got pass = %v", pass)
 | 
						|
	}
 | 
						|
	e, ok := err.(ControllerScaleError)
 | 
						|
	if err == nil || !ok || e.FailureType != ControllerScaleUpdateInvalidFailure {
 | 
						|
		t.Errorf("Expected error on invalid update failure, got %v", err)
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestJobScaleFailsPreconditions(t *testing.T) {
 | 
						|
	ten := 10
 | 
						|
	fake := testclient.NewSimpleFake(&experimental.Job{
 | 
						|
		Spec: experimental.JobSpec{
 | 
						|
			Parallelism: &ten,
 | 
						|
		},
 | 
						|
	})
 | 
						|
	scaler := JobScaler{fake}
 | 
						|
	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].(testclient.GetAction); !ok || action.GetResource() != "jobs" || action.GetName() != name {
 | 
						|
		t.Errorf("unexpected action: %v, expected get-job %s", actions[0], name)
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestValidateJob(t *testing.T) {
 | 
						|
	zero, ten, twenty := 0, 10, 20
 | 
						|
	tests := []struct {
 | 
						|
		preconditions ScalePrecondition
 | 
						|
		job           experimental.Job
 | 
						|
		expectError   bool
 | 
						|
		test          string
 | 
						|
	}{
 | 
						|
		{
 | 
						|
			preconditions: ScalePrecondition{-1, ""},
 | 
						|
			expectError:   false,
 | 
						|
			test:          "defaults",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			preconditions: ScalePrecondition{-1, ""},
 | 
						|
			job: experimental.Job{
 | 
						|
				ObjectMeta: api.ObjectMeta{
 | 
						|
					ResourceVersion: "foo",
 | 
						|
				},
 | 
						|
				Spec: experimental.JobSpec{
 | 
						|
					Parallelism: &ten,
 | 
						|
				},
 | 
						|
			},
 | 
						|
			expectError: false,
 | 
						|
			test:        "defaults 2",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			preconditions: ScalePrecondition{0, ""},
 | 
						|
			job: experimental.Job{
 | 
						|
				ObjectMeta: api.ObjectMeta{
 | 
						|
					ResourceVersion: "foo",
 | 
						|
				},
 | 
						|
				Spec: experimental.JobSpec{
 | 
						|
					Parallelism: &zero,
 | 
						|
				},
 | 
						|
			},
 | 
						|
			expectError: false,
 | 
						|
			test:        "size matches",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			preconditions: ScalePrecondition{-1, "foo"},
 | 
						|
			job: experimental.Job{
 | 
						|
				ObjectMeta: api.ObjectMeta{
 | 
						|
					ResourceVersion: "foo",
 | 
						|
				},
 | 
						|
				Spec: experimental.JobSpec{
 | 
						|
					Parallelism: &ten,
 | 
						|
				},
 | 
						|
			},
 | 
						|
			expectError: false,
 | 
						|
			test:        "resource version matches",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			preconditions: ScalePrecondition{10, "foo"},
 | 
						|
			job: experimental.Job{
 | 
						|
				ObjectMeta: api.ObjectMeta{
 | 
						|
					ResourceVersion: "foo",
 | 
						|
				},
 | 
						|
				Spec: experimental.JobSpec{
 | 
						|
					Parallelism: &ten,
 | 
						|
				},
 | 
						|
			},
 | 
						|
			expectError: false,
 | 
						|
			test:        "both match",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			preconditions: ScalePrecondition{10, "foo"},
 | 
						|
			job: experimental.Job{
 | 
						|
				ObjectMeta: api.ObjectMeta{
 | 
						|
					ResourceVersion: "foo",
 | 
						|
				},
 | 
						|
				Spec: experimental.JobSpec{
 | 
						|
					Parallelism: &twenty,
 | 
						|
				},
 | 
						|
			},
 | 
						|
			expectError: true,
 | 
						|
			test:        "size different",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			preconditions: ScalePrecondition{10, "foo"},
 | 
						|
			job: experimental.Job{
 | 
						|
				ObjectMeta: api.ObjectMeta{
 | 
						|
					ResourceVersion: "foo",
 | 
						|
				},
 | 
						|
			},
 | 
						|
			expectError: true,
 | 
						|
			test:        "parallelism nil",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			preconditions: ScalePrecondition{10, "foo"},
 | 
						|
			job: experimental.Job{
 | 
						|
				ObjectMeta: api.ObjectMeta{
 | 
						|
					ResourceVersion: "bar",
 | 
						|
				},
 | 
						|
				Spec: experimental.JobSpec{
 | 
						|
					Parallelism: &ten,
 | 
						|
				},
 | 
						|
			},
 | 
						|
			expectError: true,
 | 
						|
			test:        "version different",
 | 
						|
		},
 | 
						|
		{
 | 
						|
			preconditions: ScalePrecondition{10, "foo"},
 | 
						|
			job: experimental.Job{
 | 
						|
				ObjectMeta: api.ObjectMeta{
 | 
						|
					ResourceVersion: "bar",
 | 
						|
				},
 | 
						|
				Spec: experimental.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("unexpected non-error: %v (%s)", err, test.test)
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 |