Add generated file

This PR adds generated files under pkg/client and vendor folder.

vendor/k8s.io/kubernetes/pkg/controller/deployment/rolling_test.go

@@ -0,0 +1,379 @@
+/*
+Copyright 2016 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 deployment
+
+import (
+	"testing"
+
+	apps "k8s.io/api/apps/v1"
+	"k8s.io/apimachinery/pkg/util/intstr"
+	"k8s.io/client-go/kubernetes/fake"
+	core "k8s.io/client-go/testing"
+	"k8s.io/client-go/tools/record"
+)
+
+func TestDeploymentController_reconcileNewReplicaSet(t *testing.T) {
+	tests := []struct {
+		deploymentReplicas  int
+		maxSurge            intstr.IntOrString
+		oldReplicas         int
+		newReplicas         int
+		scaleExpected       bool
+		expectedNewReplicas int
+	}{
+		{
+			// Should not scale up.
+			deploymentReplicas: 10,
+			maxSurge:           intstr.FromInt(0),
+			oldReplicas:        10,
+			newReplicas:        0,
+			scaleExpected:      false,
+		},
+		{
+			deploymentReplicas:  10,
+			maxSurge:            intstr.FromInt(2),
+			oldReplicas:         10,
+			newReplicas:         0,
+			scaleExpected:       true,
+			expectedNewReplicas: 2,
+		},
+		{
+			deploymentReplicas:  10,
+			maxSurge:            intstr.FromInt(2),
+			oldReplicas:         5,
+			newReplicas:         0,
+			scaleExpected:       true,
+			expectedNewReplicas: 7,
+		},
+		{
+			deploymentReplicas: 10,
+			maxSurge:           intstr.FromInt(2),
+			oldReplicas:        10,
+			newReplicas:        2,
+			scaleExpected:      false,
+		},
+		{
+			// Should scale down.
+			deploymentReplicas:  10,
+			maxSurge:            intstr.FromInt(2),
+			oldReplicas:         2,
+			newReplicas:         11,
+			scaleExpected:       true,
+			expectedNewReplicas: 10,
+		},
+	}
+
+	for i := range tests {
+		test := tests[i]
+		t.Logf("executing scenario %d", i)
+		newRS := rs("foo-v2", test.newReplicas, nil, noTimestamp)
+		oldRS := rs("foo-v2", test.oldReplicas, nil, noTimestamp)
+		allRSs := []*apps.ReplicaSet{newRS, oldRS}
+		maxUnavailable := intstr.FromInt(0)
+		deployment := newDeployment("foo", test.deploymentReplicas, nil, &test.maxSurge, &maxUnavailable, map[string]string{"foo": "bar"})
+		fake := fake.Clientset{}
+		controller := &DeploymentController{
+			client:        &fake,
+			eventRecorder: &record.FakeRecorder{},
+		}
+		scaled, err := controller.reconcileNewReplicaSet(allRSs, newRS, deployment)
+		if err != nil {
+			t.Errorf("unexpected error: %v", err)
+			continue
+		}
+		if !test.scaleExpected {
+			if scaled || len(fake.Actions()) > 0 {
+				t.Errorf("unexpected scaling: %v", fake.Actions())
+			}
+			continue
+		}
+		if test.scaleExpected && !scaled {
+			t.Errorf("expected scaling to occur")
+			continue
+		}
+		if len(fake.Actions()) != 1 {
+			t.Errorf("expected 1 action during scale, got: %v", fake.Actions())
+			continue
+		}
+		updated := fake.Actions()[0].(core.UpdateAction).GetObject().(*apps.ReplicaSet)
+		if e, a := test.expectedNewReplicas, int(*(updated.Spec.Replicas)); e != a {
+			t.Errorf("expected update to %d replicas, got %d", e, a)
+		}
+	}
+}
+
+func TestDeploymentController_reconcileOldReplicaSets(t *testing.T) {
+	tests := []struct {
+		deploymentReplicas  int
+		maxUnavailable      intstr.IntOrString
+		oldReplicas         int
+		newReplicas         int
+		readyPodsFromOldRS  int
+		readyPodsFromNewRS  int
+		scaleExpected       bool
+		expectedOldReplicas int
+	}{
+		{
+			deploymentReplicas:  10,
+			maxUnavailable:      intstr.FromInt(0),
+			oldReplicas:         10,
+			newReplicas:         0,
+			readyPodsFromOldRS:  10,
+			readyPodsFromNewRS:  0,
+			scaleExpected:       true,
+			expectedOldReplicas: 9,
+		},
+		{
+			deploymentReplicas:  10,
+			maxUnavailable:      intstr.FromInt(2),
+			oldReplicas:         10,
+			newReplicas:         0,
+			readyPodsFromOldRS:  10,
+			readyPodsFromNewRS:  0,
+			scaleExpected:       true,
+			expectedOldReplicas: 8,
+		},
+		{ // expect unhealthy replicas from old replica sets been cleaned up
+			deploymentReplicas:  10,
+			maxUnavailable:      intstr.FromInt(2),
+			oldReplicas:         10,
+			newReplicas:         0,
+			readyPodsFromOldRS:  8,
+			readyPodsFromNewRS:  0,
+			scaleExpected:       true,
+			expectedOldReplicas: 8,
+		},
+		{ // expect 1 unhealthy replica from old replica sets been cleaned up, and 1 ready pod been scaled down
+			deploymentReplicas:  10,
+			maxUnavailable:      intstr.FromInt(2),
+			oldReplicas:         10,
+			newReplicas:         0,
+			readyPodsFromOldRS:  9,
+			readyPodsFromNewRS:  0,
+			scaleExpected:       true,
+			expectedOldReplicas: 8,
+		},
+		{ // the unavailable pods from the newRS would not make us scale down old RSs in a further step
+			deploymentReplicas: 10,
+			maxUnavailable:     intstr.FromInt(2),
+			oldReplicas:        8,
+			newReplicas:        2,
+			readyPodsFromOldRS: 8,
+			readyPodsFromNewRS: 0,
+			scaleExpected:      false,
+		},
+	}
+	for i := range tests {
+		test := tests[i]
+		t.Logf("executing scenario %d", i)
+
+		newSelector := map[string]string{"foo": "new"}
+		oldSelector := map[string]string{"foo": "old"}
+		newRS := rs("foo-new", test.newReplicas, newSelector, noTimestamp)
+		newRS.Status.AvailableReplicas = int32(test.readyPodsFromNewRS)
+		oldRS := rs("foo-old", test.oldReplicas, oldSelector, noTimestamp)
+		oldRS.Status.AvailableReplicas = int32(test.readyPodsFromOldRS)
+		oldRSs := []*apps.ReplicaSet{oldRS}
+		allRSs := []*apps.ReplicaSet{oldRS, newRS}
+		maxSurge := intstr.FromInt(0)
+		deployment := newDeployment("foo", test.deploymentReplicas, nil, &maxSurge, &test.maxUnavailable, newSelector)
+		fakeClientset := fake.Clientset{}
+		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, noTimestamp)
+		oldRS.Status.AvailableReplicas = int32(test.readyPods)
+		oldRSs := []*apps.ReplicaSet{oldRS}
+		maxSurge := intstr.FromInt(2)
+		maxUnavailable := intstr.FromInt(2)
+		deployment := newDeployment("foo", 10, nil, &maxSurge, &maxUnavailable, nil)
+		fakeClientset := fake.Clientset{}
+
+		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 := range tests {
+		test := tests[i]
+		t.Logf("executing scenario %d", i)
+		oldRS := rs("foo-v2", test.oldReplicas, nil, noTimestamp)
+		oldRS.Status.AvailableReplicas = int32(test.readyPods)
+		allRSs := []*apps.ReplicaSet{oldRS}
+		oldRSs := []*apps.ReplicaSet{oldRS}
+		maxSurge := intstr.FromInt(0)
+		deployment := newDeployment("foo", test.deploymentReplicas, nil, &maxSurge, &test.maxUnavailable, map[string]string{"foo": "bar"})
+		fakeClientset := fake.Clientset{}
+		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().(*apps.ReplicaSet)
+		if e, a := test.expectedOldReplicas, int(*(updated.Spec.Replicas)); e != a {
+			t.Errorf("expected update to %d replicas, got %d", e, a)
+		}
+	}
+}