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			821 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
/*
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Copyright 2015 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 deployment
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import (
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	"fmt"
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	"testing"
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	"k8s.io/kubernetes/pkg/api"
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	"k8s.io/kubernetes/pkg/api/testapi"
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	"k8s.io/kubernetes/pkg/api/unversioned"
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	exp "k8s.io/kubernetes/pkg/apis/extensions"
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	"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/fake"
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	"k8s.io/kubernetes/pkg/client/record"
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	"k8s.io/kubernetes/pkg/client/testing/core"
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	"k8s.io/kubernetes/pkg/controller"
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	"k8s.io/kubernetes/pkg/runtime"
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	"k8s.io/kubernetes/pkg/util"
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	"k8s.io/kubernetes/pkg/util/intstr"
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)
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func rs(name string, replicas int, selector map[string]string) *exp.ReplicaSet {
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	return &exp.ReplicaSet{
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		ObjectMeta: api.ObjectMeta{
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			Name: name,
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		},
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		Spec: exp.ReplicaSetSpec{
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			Replicas: int32(replicas),
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			Selector: &unversioned.LabelSelector{MatchLabels: selector},
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			Template: api.PodTemplateSpec{},
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		},
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	}
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}
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func newRSWithStatus(name string, specReplicas, statusReplicas int, selector map[string]string) *exp.ReplicaSet {
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	rs := rs(name, specReplicas, selector)
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	rs.Status = exp.ReplicaSetStatus{
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		Replicas: int32(statusReplicas),
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	}
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	return rs
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}
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func deployment(name string, replicas int, maxSurge, maxUnavailable intstr.IntOrString) exp.Deployment {
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	return exp.Deployment{
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		ObjectMeta: api.ObjectMeta{
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			Name: name,
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		},
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		Spec: exp.DeploymentSpec{
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			Replicas: int32(replicas),
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			Strategy: exp.DeploymentStrategy{
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				Type: exp.RollingUpdateDeploymentStrategyType,
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				RollingUpdate: &exp.RollingUpdateDeployment{
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					MaxSurge:       maxSurge,
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					MaxUnavailable: maxUnavailable,
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				},
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			},
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		},
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	}
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}
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var alwaysReady = func() bool { return true }
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func newDeployment(replicas int, revisionHistoryLimit *int) *exp.Deployment {
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	var v *int32
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	if revisionHistoryLimit != nil {
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		v = new(int32)
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		*v = int32(*revisionHistoryLimit)
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	}
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	d := exp.Deployment{
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		TypeMeta: unversioned.TypeMeta{APIVersion: testapi.Default.GroupVersion().String()},
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		ObjectMeta: api.ObjectMeta{
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			UID:             util.NewUUID(),
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			Name:            "foobar",
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			Namespace:       api.NamespaceDefault,
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			ResourceVersion: "18",
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		},
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		Spec: exp.DeploymentSpec{
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			Strategy: exp.DeploymentStrategy{
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				Type:          exp.RollingUpdateDeploymentStrategyType,
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				RollingUpdate: &exp.RollingUpdateDeployment{},
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			},
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			Replicas: int32(replicas),
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			Selector: &unversioned.LabelSelector{MatchLabels: map[string]string{"foo": "bar"}},
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			Template: api.PodTemplateSpec{
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				ObjectMeta: api.ObjectMeta{
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					Labels: map[string]string{
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						"name": "foo",
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						"type": "production",
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					},
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				},
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				Spec: api.PodSpec{
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					Containers: []api.Container{
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						{
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							Image: "foo/bar",
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						},
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					},
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				},
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			},
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			RevisionHistoryLimit: v,
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		},
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	}
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	return &d
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}
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func newReplicaSet(d *exp.Deployment, name string, replicas int) *exp.ReplicaSet {
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	return &exp.ReplicaSet{
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		ObjectMeta: api.ObjectMeta{
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			Name:      name,
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			Namespace: api.NamespaceDefault,
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		},
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		Spec: exp.ReplicaSetSpec{
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			Replicas: int32(replicas),
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			Template: d.Spec.Template,
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		},
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	}
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}
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func newListOptions() api.ListOptions {
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	return api.ListOptions{}
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}
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func TestDeploymentController_reconcileNewReplicaSet(t *testing.T) {
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	tests := []struct {
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		deploymentReplicas  int
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		maxSurge            intstr.IntOrString
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		oldReplicas         int
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		newReplicas         int
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		scaleExpected       bool
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		expectedNewReplicas int
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	}{
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		{
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			// Should not scale up.
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			deploymentReplicas: 10,
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			maxSurge:           intstr.FromInt(0),
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			oldReplicas:        10,
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			newReplicas:        0,
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			scaleExpected:      false,
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		},
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		{
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			deploymentReplicas:  10,
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			maxSurge:            intstr.FromInt(2),
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			oldReplicas:         10,
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			newReplicas:         0,
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			scaleExpected:       true,
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			expectedNewReplicas: 2,
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		},
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		{
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			deploymentReplicas:  10,
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			maxSurge:            intstr.FromInt(2),
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			oldReplicas:         5,
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			newReplicas:         0,
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			scaleExpected:       true,
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			expectedNewReplicas: 7,
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		},
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		{
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			deploymentReplicas: 10,
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			maxSurge:           intstr.FromInt(2),
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			oldReplicas:        10,
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			newReplicas:        2,
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			scaleExpected:      false,
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		},
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		{
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			// Should scale down.
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			deploymentReplicas:  10,
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			maxSurge:            intstr.FromInt(2),
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			oldReplicas:         2,
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			newReplicas:         11,
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			scaleExpected:       true,
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			expectedNewReplicas: 10,
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		},
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	}
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	for i, test := range tests {
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		t.Logf("executing scenario %d", i)
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		newRS := rs("foo-v2", test.newReplicas, nil)
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		oldRS := rs("foo-v2", test.oldReplicas, nil)
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		allRSs := []*exp.ReplicaSet{newRS, oldRS}
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		deployment := deployment("foo", test.deploymentReplicas, test.maxSurge, intstr.FromInt(0))
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		fake := fake.Clientset{}
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		controller := &DeploymentController{
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			client:        &fake,
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			eventRecorder: &record.FakeRecorder{},
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		}
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		scaled, err := controller.reconcileNewReplicaSet(allRSs, newRS, &deployment)
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		if err != nil {
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			t.Errorf("unexpected error: %v", err)
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			continue
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		}
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		if !test.scaleExpected {
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			if scaled || len(fake.Actions()) > 0 {
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				t.Errorf("unexpected scaling: %v", fake.Actions())
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			}
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			continue
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		}
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		if test.scaleExpected && !scaled {
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			t.Errorf("expected scaling to occur")
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			continue
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		}
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		if len(fake.Actions()) != 1 {
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			t.Errorf("expected 1 action during scale, got: %v", fake.Actions())
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			continue
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		}
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		updated := fake.Actions()[0].(core.UpdateAction).GetObject().(*exp.ReplicaSet)
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		if e, a := test.expectedNewReplicas, int(updated.Spec.Replicas); e != a {
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			t.Errorf("expected update to %d replicas, got %d", e, a)
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		}
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	}
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}
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func TestDeploymentController_reconcileOldReplicaSets(t *testing.T) {
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	tests := []struct {
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		deploymentReplicas  int
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		maxUnavailable      intstr.IntOrString
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		oldReplicas         int
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		newReplicas         int
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		readyPodsFromOldRS  int
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		readyPodsFromNewRS  int
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		scaleExpected       bool
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		expectedOldReplicas int
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	}{
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		{
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			deploymentReplicas:  10,
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			maxUnavailable:      intstr.FromInt(0),
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			oldReplicas:         10,
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			newReplicas:         0,
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			readyPodsFromOldRS:  10,
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			readyPodsFromNewRS:  0,
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			scaleExpected:       true,
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			expectedOldReplicas: 9,
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		},
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		{
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			deploymentReplicas:  10,
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			maxUnavailable:      intstr.FromInt(2),
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			oldReplicas:         10,
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			newReplicas:         0,
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			readyPodsFromOldRS:  10,
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			readyPodsFromNewRS:  0,
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			scaleExpected:       true,
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			expectedOldReplicas: 8,
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		},
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		{ // expect unhealthy replicas from old replica sets been cleaned up
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			deploymentReplicas:  10,
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			maxUnavailable:      intstr.FromInt(2),
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			oldReplicas:         10,
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			newReplicas:         0,
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			readyPodsFromOldRS:  8,
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			readyPodsFromNewRS:  0,
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			scaleExpected:       true,
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			expectedOldReplicas: 8,
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		},
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		{ // expect 1 unhealthy replica from old replica sets been cleaned up, and 1 ready pod been scaled down
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			deploymentReplicas:  10,
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			maxUnavailable:      intstr.FromInt(2),
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			oldReplicas:         10,
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			newReplicas:         0,
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			readyPodsFromOldRS:  9,
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			readyPodsFromNewRS:  0,
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			scaleExpected:       true,
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			expectedOldReplicas: 8,
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		},
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		{ // the unavailable pods from the newRS would not make us scale down old RSs in a further step
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			deploymentReplicas: 10,
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			maxUnavailable:     intstr.FromInt(2),
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			oldReplicas:        8,
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			newReplicas:        2,
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			readyPodsFromOldRS: 8,
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			readyPodsFromNewRS: 0,
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			scaleExpected:      false,
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		},
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	}
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	for i, test := range tests {
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		t.Logf("executing scenario %d", i)
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		newSelector := map[string]string{"foo": "new"}
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		oldSelector := map[string]string{"foo": "old"}
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		newRS := rs("foo-new", test.newReplicas, newSelector)
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		oldRS := rs("foo-old", test.oldReplicas, oldSelector)
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		oldRSs := []*exp.ReplicaSet{oldRS}
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		allRSs := []*exp.ReplicaSet{oldRS, newRS}
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		deployment := deployment("foo", test.deploymentReplicas, intstr.FromInt(0), test.maxUnavailable)
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						|
		fakeClientset := fake.Clientset{}
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						|
		fakeClientset.AddReactor("list", "pods", func(action core.Action) (handled bool, ret runtime.Object, err error) {
 | 
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			switch action.(type) {
 | 
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			case core.ListAction:
 | 
						|
				podList := &api.PodList{}
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						|
				for podIndex := 0; podIndex < test.readyPodsFromOldRS; podIndex++ {
 | 
						|
					podList.Items = append(podList.Items, api.Pod{
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						|
						ObjectMeta: api.ObjectMeta{
 | 
						|
							Name:   fmt.Sprintf("%s-oldReadyPod-%d", oldRS.Name, podIndex),
 | 
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							Labels: oldSelector,
 | 
						|
						},
 | 
						|
						Status: api.PodStatus{
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						|
							Conditions: []api.PodCondition{
 | 
						|
								{
 | 
						|
									Type:   api.PodReady,
 | 
						|
									Status: api.ConditionTrue,
 | 
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								},
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						|
							},
 | 
						|
						},
 | 
						|
					})
 | 
						|
				}
 | 
						|
				for podIndex := 0; podIndex < test.oldReplicas-test.readyPodsFromOldRS; podIndex++ {
 | 
						|
					podList.Items = append(podList.Items, api.Pod{
 | 
						|
						ObjectMeta: api.ObjectMeta{
 | 
						|
							Name:   fmt.Sprintf("%s-oldUnhealthyPod-%d", oldRS.Name, podIndex),
 | 
						|
							Labels: oldSelector,
 | 
						|
						},
 | 
						|
						Status: api.PodStatus{
 | 
						|
							Conditions: []api.PodCondition{
 | 
						|
								{
 | 
						|
									Type:   api.PodReady,
 | 
						|
									Status: api.ConditionFalse,
 | 
						|
								},
 | 
						|
							},
 | 
						|
						},
 | 
						|
					})
 | 
						|
				}
 | 
						|
				for podIndex := 0; podIndex < test.readyPodsFromNewRS; podIndex++ {
 | 
						|
					podList.Items = append(podList.Items, api.Pod{
 | 
						|
						ObjectMeta: api.ObjectMeta{
 | 
						|
							Name:   fmt.Sprintf("%s-newReadyPod-%d", oldRS.Name, podIndex),
 | 
						|
							Labels: newSelector,
 | 
						|
						},
 | 
						|
						Status: api.PodStatus{
 | 
						|
							Conditions: []api.PodCondition{
 | 
						|
								{
 | 
						|
									Type:   api.PodReady,
 | 
						|
									Status: api.ConditionTrue,
 | 
						|
								},
 | 
						|
							},
 | 
						|
						},
 | 
						|
					})
 | 
						|
				}
 | 
						|
				for podIndex := 0; podIndex < test.oldReplicas-test.readyPodsFromOldRS; podIndex++ {
 | 
						|
					podList.Items = append(podList.Items, api.Pod{
 | 
						|
						ObjectMeta: api.ObjectMeta{
 | 
						|
							Name:   fmt.Sprintf("%s-newUnhealthyPod-%d", oldRS.Name, podIndex),
 | 
						|
							Labels: newSelector,
 | 
						|
						},
 | 
						|
						Status: api.PodStatus{
 | 
						|
							Conditions: []api.PodCondition{
 | 
						|
								{
 | 
						|
									Type:   api.PodReady,
 | 
						|
									Status: api.ConditionFalse,
 | 
						|
								},
 | 
						|
							},
 | 
						|
						},
 | 
						|
					})
 | 
						|
				}
 | 
						|
				return true, podList, nil
 | 
						|
			}
 | 
						|
			return false, nil, nil
 | 
						|
		})
 | 
						|
		controller := &DeploymentController{
 | 
						|
			client:        &fakeClientset,
 | 
						|
			eventRecorder: &record.FakeRecorder{},
 | 
						|
		}
 | 
						|
 | 
						|
		scaled, err := controller.reconcileOldReplicaSets(allRSs, oldRSs, newRS, &deployment)
 | 
						|
		if err != nil {
 | 
						|
			t.Errorf("unexpected error: %v", err)
 | 
						|
			continue
 | 
						|
		}
 | 
						|
		if !test.scaleExpected && scaled {
 | 
						|
			t.Errorf("unexpected scaling: %v", fakeClientset.Actions())
 | 
						|
		}
 | 
						|
		if test.scaleExpected && !scaled {
 | 
						|
			t.Errorf("expected scaling to occur")
 | 
						|
			continue
 | 
						|
		}
 | 
						|
		continue
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestDeploymentController_cleanupUnhealthyReplicas(t *testing.T) {
 | 
						|
	tests := []struct {
 | 
						|
		oldReplicas          int
 | 
						|
		readyPods            int
 | 
						|
		unHealthyPods        int
 | 
						|
		maxCleanupCount      int
 | 
						|
		cleanupCountExpected int
 | 
						|
	}{
 | 
						|
		{
 | 
						|
			oldReplicas:          10,
 | 
						|
			readyPods:            8,
 | 
						|
			unHealthyPods:        2,
 | 
						|
			maxCleanupCount:      1,
 | 
						|
			cleanupCountExpected: 1,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			oldReplicas:          10,
 | 
						|
			readyPods:            8,
 | 
						|
			unHealthyPods:        2,
 | 
						|
			maxCleanupCount:      3,
 | 
						|
			cleanupCountExpected: 2,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			oldReplicas:          10,
 | 
						|
			readyPods:            8,
 | 
						|
			unHealthyPods:        2,
 | 
						|
			maxCleanupCount:      0,
 | 
						|
			cleanupCountExpected: 0,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			oldReplicas:          10,
 | 
						|
			readyPods:            10,
 | 
						|
			unHealthyPods:        0,
 | 
						|
			maxCleanupCount:      3,
 | 
						|
			cleanupCountExpected: 0,
 | 
						|
		},
 | 
						|
	}
 | 
						|
 | 
						|
	for i, test := range tests {
 | 
						|
		t.Logf("executing scenario %d", i)
 | 
						|
		oldRS := rs("foo-v2", test.oldReplicas, nil)
 | 
						|
		oldRSs := []*exp.ReplicaSet{oldRS}
 | 
						|
		deployment := deployment("foo", 10, intstr.FromInt(2), intstr.FromInt(2))
 | 
						|
		fakeClientset := fake.Clientset{}
 | 
						|
		fakeClientset.AddReactor("list", "pods", func(action core.Action) (handled bool, ret runtime.Object, err error) {
 | 
						|
			switch action.(type) {
 | 
						|
			case core.ListAction:
 | 
						|
				podList := &api.PodList{}
 | 
						|
				for podIndex := 0; podIndex < test.readyPods; podIndex++ {
 | 
						|
					podList.Items = append(podList.Items, api.Pod{
 | 
						|
						ObjectMeta: api.ObjectMeta{
 | 
						|
							Name: fmt.Sprintf("%s-readyPod-%d", oldRS.Name, podIndex),
 | 
						|
						},
 | 
						|
						Status: api.PodStatus{
 | 
						|
							Conditions: []api.PodCondition{
 | 
						|
								{
 | 
						|
									Type:   api.PodReady,
 | 
						|
									Status: api.ConditionTrue,
 | 
						|
								},
 | 
						|
							},
 | 
						|
						},
 | 
						|
					})
 | 
						|
				}
 | 
						|
				for podIndex := 0; podIndex < test.unHealthyPods; podIndex++ {
 | 
						|
					podList.Items = append(podList.Items, api.Pod{
 | 
						|
						ObjectMeta: api.ObjectMeta{
 | 
						|
							Name: fmt.Sprintf("%s-unHealthyPod-%d", oldRS.Name, podIndex),
 | 
						|
						},
 | 
						|
						Status: api.PodStatus{
 | 
						|
							Conditions: []api.PodCondition{
 | 
						|
								{
 | 
						|
									Type:   api.PodReady,
 | 
						|
									Status: api.ConditionFalse,
 | 
						|
								},
 | 
						|
							},
 | 
						|
						},
 | 
						|
					})
 | 
						|
				}
 | 
						|
				return true, podList, nil
 | 
						|
			}
 | 
						|
			return false, nil, nil
 | 
						|
		})
 | 
						|
 | 
						|
		controller := &DeploymentController{
 | 
						|
			client:        &fakeClientset,
 | 
						|
			eventRecorder: &record.FakeRecorder{},
 | 
						|
		}
 | 
						|
		_, cleanupCount, err := controller.cleanupUnhealthyReplicas(oldRSs, &deployment, int32(test.maxCleanupCount))
 | 
						|
		if err != nil {
 | 
						|
			t.Errorf("unexpected error: %v", err)
 | 
						|
			continue
 | 
						|
		}
 | 
						|
		if int(cleanupCount) != test.cleanupCountExpected {
 | 
						|
			t.Errorf("expected %v unhealthy replicas been cleaned up, got %v", test.cleanupCountExpected, cleanupCount)
 | 
						|
			continue
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestDeploymentController_scaleDownOldReplicaSetsForRollingUpdate(t *testing.T) {
 | 
						|
	tests := []struct {
 | 
						|
		deploymentReplicas  int
 | 
						|
		maxUnavailable      intstr.IntOrString
 | 
						|
		readyPods           int
 | 
						|
		oldReplicas         int
 | 
						|
		scaleExpected       bool
 | 
						|
		expectedOldReplicas int
 | 
						|
	}{
 | 
						|
		{
 | 
						|
			deploymentReplicas:  10,
 | 
						|
			maxUnavailable:      intstr.FromInt(0),
 | 
						|
			readyPods:           10,
 | 
						|
			oldReplicas:         10,
 | 
						|
			scaleExpected:       true,
 | 
						|
			expectedOldReplicas: 9,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			deploymentReplicas:  10,
 | 
						|
			maxUnavailable:      intstr.FromInt(2),
 | 
						|
			readyPods:           10,
 | 
						|
			oldReplicas:         10,
 | 
						|
			scaleExpected:       true,
 | 
						|
			expectedOldReplicas: 8,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			deploymentReplicas: 10,
 | 
						|
			maxUnavailable:     intstr.FromInt(2),
 | 
						|
			readyPods:          8,
 | 
						|
			oldReplicas:        10,
 | 
						|
			scaleExpected:      false,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			deploymentReplicas: 10,
 | 
						|
			maxUnavailable:     intstr.FromInt(2),
 | 
						|
			readyPods:          10,
 | 
						|
			oldReplicas:        0,
 | 
						|
			scaleExpected:      false,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			deploymentReplicas: 10,
 | 
						|
			maxUnavailable:     intstr.FromInt(2),
 | 
						|
			readyPods:          1,
 | 
						|
			oldReplicas:        10,
 | 
						|
			scaleExpected:      false,
 | 
						|
		},
 | 
						|
	}
 | 
						|
 | 
						|
	for i, test := range tests {
 | 
						|
		t.Logf("executing scenario %d", i)
 | 
						|
		oldRS := rs("foo-v2", test.oldReplicas, nil)
 | 
						|
		allRSs := []*exp.ReplicaSet{oldRS}
 | 
						|
		oldRSs := []*exp.ReplicaSet{oldRS}
 | 
						|
		deployment := deployment("foo", test.deploymentReplicas, intstr.FromInt(0), test.maxUnavailable)
 | 
						|
		fakeClientset := fake.Clientset{}
 | 
						|
		fakeClientset.AddReactor("list", "pods", func(action core.Action) (handled bool, ret runtime.Object, err error) {
 | 
						|
			switch action.(type) {
 | 
						|
			case core.ListAction:
 | 
						|
				podList := &api.PodList{}
 | 
						|
				for podIndex := 0; podIndex < test.readyPods; podIndex++ {
 | 
						|
					podList.Items = append(podList.Items, api.Pod{
 | 
						|
						ObjectMeta: api.ObjectMeta{
 | 
						|
							Name:   fmt.Sprintf("%s-pod-%d", oldRS.Name, podIndex),
 | 
						|
							Labels: map[string]string{"foo": "bar"},
 | 
						|
						},
 | 
						|
						Status: api.PodStatus{
 | 
						|
							Conditions: []api.PodCondition{
 | 
						|
								{
 | 
						|
									Type:   api.PodReady,
 | 
						|
									Status: api.ConditionTrue,
 | 
						|
								},
 | 
						|
							},
 | 
						|
						},
 | 
						|
					})
 | 
						|
				}
 | 
						|
				return true, podList, nil
 | 
						|
			}
 | 
						|
			return false, nil, nil
 | 
						|
		})
 | 
						|
		controller := &DeploymentController{
 | 
						|
			client:        &fakeClientset,
 | 
						|
			eventRecorder: &record.FakeRecorder{},
 | 
						|
		}
 | 
						|
		scaled, err := controller.scaleDownOldReplicaSetsForRollingUpdate(allRSs, oldRSs, &deployment)
 | 
						|
		if err != nil {
 | 
						|
			t.Errorf("unexpected error: %v", err)
 | 
						|
			continue
 | 
						|
		}
 | 
						|
		if !test.scaleExpected {
 | 
						|
			if scaled != 0 {
 | 
						|
				t.Errorf("unexpected scaling: %v", fakeClientset.Actions())
 | 
						|
			}
 | 
						|
			continue
 | 
						|
		}
 | 
						|
		if test.scaleExpected && scaled == 0 {
 | 
						|
			t.Errorf("expected scaling to occur; actions: %v", fakeClientset.Actions())
 | 
						|
			continue
 | 
						|
		}
 | 
						|
		// There are both list and update actions logged, so extract the update
 | 
						|
		// action for verification.
 | 
						|
		var updateAction core.UpdateAction
 | 
						|
		for _, action := range fakeClientset.Actions() {
 | 
						|
			switch a := action.(type) {
 | 
						|
			case core.UpdateAction:
 | 
						|
				if updateAction != nil {
 | 
						|
					t.Errorf("expected only 1 update action; had %v and found %v", updateAction, a)
 | 
						|
				} else {
 | 
						|
					updateAction = a
 | 
						|
				}
 | 
						|
			}
 | 
						|
		}
 | 
						|
		if updateAction == nil {
 | 
						|
			t.Errorf("expected an update action")
 | 
						|
			continue
 | 
						|
		}
 | 
						|
		updated := updateAction.GetObject().(*exp.ReplicaSet)
 | 
						|
		if e, a := test.expectedOldReplicas, int(updated.Spec.Replicas); e != a {
 | 
						|
			t.Errorf("expected update to %d replicas, got %d", e, a)
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestDeploymentController_cleanupOldReplicaSets(t *testing.T) {
 | 
						|
	selector := map[string]string{"foo": "bar"}
 | 
						|
 | 
						|
	tests := []struct {
 | 
						|
		oldRSs               []*exp.ReplicaSet
 | 
						|
		revisionHistoryLimit int
 | 
						|
		expectedDeletions    int
 | 
						|
	}{
 | 
						|
		{
 | 
						|
			oldRSs: []*exp.ReplicaSet{
 | 
						|
				newRSWithStatus("foo-1", 0, 0, selector),
 | 
						|
				newRSWithStatus("foo-2", 0, 0, selector),
 | 
						|
				newRSWithStatus("foo-3", 0, 0, selector),
 | 
						|
			},
 | 
						|
			revisionHistoryLimit: 1,
 | 
						|
			expectedDeletions:    2,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			// Only delete the replica set with Spec.Replicas = Status.Replicas = 0.
 | 
						|
			oldRSs: []*exp.ReplicaSet{
 | 
						|
				newRSWithStatus("foo-1", 0, 0, selector),
 | 
						|
				newRSWithStatus("foo-2", 0, 1, selector),
 | 
						|
				newRSWithStatus("foo-3", 1, 0, selector),
 | 
						|
				newRSWithStatus("foo-4", 1, 1, selector),
 | 
						|
			},
 | 
						|
			revisionHistoryLimit: 0,
 | 
						|
			expectedDeletions:    1,
 | 
						|
		},
 | 
						|
 | 
						|
		{
 | 
						|
			oldRSs: []*exp.ReplicaSet{
 | 
						|
				newRSWithStatus("foo-1", 0, 0, selector),
 | 
						|
				newRSWithStatus("foo-2", 0, 0, selector),
 | 
						|
			},
 | 
						|
			revisionHistoryLimit: 0,
 | 
						|
			expectedDeletions:    2,
 | 
						|
		},
 | 
						|
		{
 | 
						|
			oldRSs: []*exp.ReplicaSet{
 | 
						|
				newRSWithStatus("foo-1", 1, 1, selector),
 | 
						|
				newRSWithStatus("foo-2", 1, 1, selector),
 | 
						|
			},
 | 
						|
			revisionHistoryLimit: 0,
 | 
						|
			expectedDeletions:    0,
 | 
						|
		},
 | 
						|
	}
 | 
						|
 | 
						|
	for i, test := range tests {
 | 
						|
		fake := &fake.Clientset{}
 | 
						|
		controller := NewDeploymentController(fake, controller.NoResyncPeriodFunc)
 | 
						|
 | 
						|
		controller.eventRecorder = &record.FakeRecorder{}
 | 
						|
		controller.rsStoreSynced = alwaysReady
 | 
						|
		controller.podStoreSynced = alwaysReady
 | 
						|
		for _, rs := range test.oldRSs {
 | 
						|
			controller.rsStore.Add(rs)
 | 
						|
		}
 | 
						|
 | 
						|
		d := newDeployment(1, &tests[i].revisionHistoryLimit)
 | 
						|
		controller.cleanupOldReplicaSets(test.oldRSs, d)
 | 
						|
 | 
						|
		gotDeletions := 0
 | 
						|
		for _, action := range fake.Actions() {
 | 
						|
			if "delete" == action.GetVerb() {
 | 
						|
				gotDeletions++
 | 
						|
			}
 | 
						|
		}
 | 
						|
		if gotDeletions != test.expectedDeletions {
 | 
						|
			t.Errorf("expect %v old replica sets been deleted, but got %v", test.expectedDeletions, gotDeletions)
 | 
						|
			continue
 | 
						|
		}
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func getKey(d *exp.Deployment, t *testing.T) string {
 | 
						|
	if key, err := controller.KeyFunc(d); err != nil {
 | 
						|
		t.Errorf("Unexpected error getting key for deployment %v: %v", d.Name, err)
 | 
						|
		return ""
 | 
						|
	} else {
 | 
						|
		return key
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
type fixture struct {
 | 
						|
	t *testing.T
 | 
						|
 | 
						|
	client *fake.Clientset
 | 
						|
	// Objects to put in the store.
 | 
						|
	dStore   []*exp.Deployment
 | 
						|
	rsStore  []*exp.ReplicaSet
 | 
						|
	podStore []*api.Pod
 | 
						|
 | 
						|
	// Actions expected to happen on the client. Objects from here are also
 | 
						|
	// preloaded into NewSimpleFake.
 | 
						|
	actions []core.Action
 | 
						|
	objects *api.List
 | 
						|
}
 | 
						|
 | 
						|
func (f *fixture) expectUpdateDeploymentAction(d *exp.Deployment) {
 | 
						|
	f.actions = append(f.actions, core.NewUpdateAction(unversioned.GroupVersionResource{Resource: "deployments"}, d.Namespace, d))
 | 
						|
	f.objects.Items = append(f.objects.Items, d)
 | 
						|
}
 | 
						|
 | 
						|
func (f *fixture) expectCreateRSAction(rs *exp.ReplicaSet) {
 | 
						|
	f.actions = append(f.actions, core.NewCreateAction(unversioned.GroupVersionResource{Resource: "replicasets"}, rs.Namespace, rs))
 | 
						|
	f.objects.Items = append(f.objects.Items, rs)
 | 
						|
}
 | 
						|
 | 
						|
func (f *fixture) expectUpdateRSAction(rs *exp.ReplicaSet) {
 | 
						|
	f.actions = append(f.actions, core.NewUpdateAction(unversioned.GroupVersionResource{Resource: "replicasets"}, rs.Namespace, rs))
 | 
						|
	f.objects.Items = append(f.objects.Items, rs)
 | 
						|
}
 | 
						|
 | 
						|
func (f *fixture) expectListPodAction(namespace string, opt api.ListOptions) {
 | 
						|
	f.actions = append(f.actions, core.NewListAction(unversioned.GroupVersionResource{Resource: "pods"}, namespace, opt))
 | 
						|
}
 | 
						|
 | 
						|
func newFixture(t *testing.T) *fixture {
 | 
						|
	f := &fixture{}
 | 
						|
	f.t = t
 | 
						|
	f.objects = &api.List{}
 | 
						|
	return f
 | 
						|
}
 | 
						|
 | 
						|
func (f *fixture) run(deploymentName string) {
 | 
						|
	f.client = fake.NewSimpleClientset(f.objects)
 | 
						|
	c := NewDeploymentController(f.client, controller.NoResyncPeriodFunc)
 | 
						|
	c.eventRecorder = &record.FakeRecorder{}
 | 
						|
	c.rsStoreSynced = alwaysReady
 | 
						|
	c.podStoreSynced = alwaysReady
 | 
						|
	for _, d := range f.dStore {
 | 
						|
		c.dStore.Store.Add(d)
 | 
						|
	}
 | 
						|
	for _, rs := range f.rsStore {
 | 
						|
		c.rsStore.Store.Add(rs)
 | 
						|
	}
 | 
						|
	for _, pod := range f.podStore {
 | 
						|
		c.podStore.Indexer.Add(pod)
 | 
						|
	}
 | 
						|
 | 
						|
	err := c.syncDeployment(deploymentName)
 | 
						|
	if err != nil {
 | 
						|
		f.t.Errorf("error syncing deployment: %v", err)
 | 
						|
	}
 | 
						|
 | 
						|
	actions := f.client.Actions()
 | 
						|
	for i, action := range actions {
 | 
						|
		if len(f.actions) < i+1 {
 | 
						|
			f.t.Errorf("%d unexpected actions: %+v", len(actions)-len(f.actions), actions[i:])
 | 
						|
			break
 | 
						|
		}
 | 
						|
 | 
						|
		expectedAction := f.actions[i]
 | 
						|
		if !expectedAction.Matches(action.GetVerb(), action.GetResource().Resource) {
 | 
						|
			f.t.Errorf("Expected\n\t%#v\ngot\n\t%#v", expectedAction, action)
 | 
						|
			continue
 | 
						|
		}
 | 
						|
	}
 | 
						|
 | 
						|
	if len(f.actions) > len(actions) {
 | 
						|
		f.t.Errorf("%d additional expected actions:%+v", len(f.actions)-len(actions), f.actions[len(actions):])
 | 
						|
	}
 | 
						|
}
 | 
						|
 | 
						|
func TestSyncDeploymentCreatesReplicaSet(t *testing.T) {
 | 
						|
	f := newFixture(t)
 | 
						|
 | 
						|
	d := newDeployment(1, nil)
 | 
						|
	f.dStore = append(f.dStore, d)
 | 
						|
 | 
						|
	// expect that one ReplicaSet with zero replicas is created
 | 
						|
	// then is updated to 1 replica
 | 
						|
	rs := newReplicaSet(d, "deploymentrs-4186632231", 0)
 | 
						|
	updatedRS := newReplicaSet(d, "deploymentrs-4186632231", 1)
 | 
						|
	opt := newListOptions()
 | 
						|
 | 
						|
	f.expectCreateRSAction(rs)
 | 
						|
	f.expectUpdateDeploymentAction(d)
 | 
						|
	f.expectUpdateRSAction(updatedRS)
 | 
						|
	f.expectListPodAction(rs.Namespace, opt)
 | 
						|
	f.expectUpdateDeploymentAction(d)
 | 
						|
 | 
						|
	f.run(getKey(d, t))
 | 
						|
}
 | 
						|
 | 
						|
// issue: https://github.com/kubernetes/kubernetes/issues/23218
 | 
						|
func TestDeploymentController_dontSyncDeploymentsWithEmptyPodSelector(t *testing.T) {
 | 
						|
	fake := &fake.Clientset{}
 | 
						|
	controller := NewDeploymentController(fake, controller.NoResyncPeriodFunc)
 | 
						|
 | 
						|
	controller.eventRecorder = &record.FakeRecorder{}
 | 
						|
	controller.rsStoreSynced = alwaysReady
 | 
						|
	controller.podStoreSynced = alwaysReady
 | 
						|
 | 
						|
	d := newDeployment(1, nil)
 | 
						|
	empty := unversioned.LabelSelector{}
 | 
						|
	d.Spec.Selector = &empty
 | 
						|
	controller.dStore.Store.Add(d)
 | 
						|
	// We expect the deployment controller to not take action here since it's configuration
 | 
						|
	// is invalid, even though no replicasets exist that match it's selector.
 | 
						|
	controller.syncDeployment(fmt.Sprintf("%s/%s", d.ObjectMeta.Namespace, d.ObjectMeta.Name))
 | 
						|
	if len(fake.Actions()) == 0 {
 | 
						|
		return
 | 
						|
	}
 | 
						|
	for _, action := range fake.Actions() {
 | 
						|
		t.Logf("unexpected action: %#v", action)
 | 
						|
	}
 | 
						|
	t.Errorf("expected deployment controller to not take action")
 | 
						|
}
 |