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This commit is contained in:
Manuel de Brito Fontes 2017-10-06 17:33:32 -03:00
parent bf5616c65b
commit d6d374b28d
13962 changed files with 48226 additions and 3618880 deletions
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36
vendor/k8s.io/kubernetes/pkg/kubelet/util/cache/BUILD generated vendored
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@ -1,36 +0,0 @@
package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
"go_test",
)
go_library(
name = "go_default_library",
srcs = ["object_cache.go"],
deps = ["//vendor/k8s.io/client-go/tools/cache:go_default_library"],
)
go_test(
name = "go_default_test",
srcs = ["object_cache_test.go"],
library = ":go_default_library",
deps = [
"//vendor/k8s.io/apimachinery/pkg/util/clock:go_default_library",
"//vendor/k8s.io/client-go/tools/cache:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
)

84
vendor/k8s.io/kubernetes/pkg/kubelet/util/cache/object_cache.go generated vendored
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@ -1,84 +0,0 @@
/*
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 cache
import (
"time"
expirationcache "k8s.io/client-go/tools/cache"
)
// ObjectCache is a simple wrapper of expiration cache that
// 1. use string type key
// 2. has an updater to get value directly if it is expired
// 3. then update the cache
type ObjectCache struct {
cache expirationcache.Store
updater func() (interface{}, error)
}
// objectEntry is an object with string type key.
type objectEntry struct {
key string
obj interface{}
}
// NewObjectCache creates ObjectCache with an updater.
// updater returns an object to cache.
func NewObjectCache(f func() (interface{}, error), ttl time.Duration) *ObjectCache {
return &ObjectCache{
updater: f,
cache: expirationcache.NewTTLStore(stringKeyFunc, ttl),
}
}
// stringKeyFunc is a string as cache key function
func stringKeyFunc(obj interface{}) (string, error) {
key := obj.(objectEntry).key
return key, nil
}
// Get gets cached objectEntry by using a unique string as the key.
func (c *ObjectCache) Get(key string) (interface{}, error) {
value, ok, err := c.cache.Get(objectEntry{key: key})
if err != nil {
return nil, err
}
if !ok {
obj, err := c.updater()
if err != nil {
return nil, err
}
err = c.cache.Add(objectEntry{
key: key,
obj: obj,
})
if err != nil {
return nil, err
}
return obj, nil
}
return value.(objectEntry).obj, nil
}
func (c *ObjectCache) Add(key string, obj interface{}) error {
err := c.cache.Add(objectEntry{key: key, obj: obj})
if err != nil {
return err
}
return nil
}

96
vendor/k8s.io/kubernetes/pkg/kubelet/util/cache/object_cache_test.go generated vendored
View file

@ -1,96 +0,0 @@
/*
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 cache
import (
"fmt"
"testing"
"time"
"k8s.io/apimachinery/pkg/util/clock"
expirationcache "k8s.io/client-go/tools/cache"
)
type testObject struct {
key string
val string
}
// A fake objectCache for unit test.
func NewFakeObjectCache(f func() (interface{}, error), ttl time.Duration, clock clock.Clock) *ObjectCache {
ttlPolicy := &expirationcache.TTLPolicy{Ttl: ttl, Clock: clock}
deleteChan := make(chan string, 1)
return &ObjectCache{
updater: f,
cache: expirationcache.NewFakeExpirationStore(stringKeyFunc, deleteChan, ttlPolicy, clock),
}
}
func TestAddAndGet(t *testing.T) {
testObj := testObject{
key: "foo",
val: "bar",
}
objectCache := NewFakeObjectCache(func() (interface{}, error) {
return nil, fmt.Errorf("Unexpected Error: updater should never be called in this test!")
}, 1*time.Hour, clock.NewFakeClock(time.Now()))
err := objectCache.Add(testObj.key, testObj.val)
if err != nil {
t.Errorf("Unable to add obj %#v by key: %s", testObj, testObj.key)
}
value, err := objectCache.Get(testObj.key)
if err != nil {
t.Errorf("Unable to get obj %#v by key: %s", testObj, testObj.key)
}
if value.(string) != testObj.val {
t.Errorf("Expected to get cached value: %#v, but got: %s", testObj.val, value.(string))
}
}
func TestExpirationBasic(t *testing.T) {
unexpectedVal := "bar"
expectedVal := "bar2"
testObj := testObject{
key: "foo",
val: unexpectedVal,
}
fakeClock := clock.NewFakeClock(time.Now())
objectCache := NewFakeObjectCache(func() (interface{}, error) {
return expectedVal, nil
}, 1*time.Second, fakeClock)
err := objectCache.Add(testObj.key, testObj.val)
if err != nil {
t.Errorf("Unable to add obj %#v by key: %s", testObj, testObj.key)
}
// sleep 2s so cache should be expired.
fakeClock.Sleep(2 * time.Second)
value, err := objectCache.Get(testObj.key)
if err != nil {
t.Errorf("Unable to get obj %#v by key: %s", testObj, testObj.key)
}
if value.(string) != expectedVal {
t.Errorf("Expected to get cached value: %#v, but got: %s", expectedVal, value.(string))
}
}

52
vendor/k8s.io/kubernetes/pkg/kubelet/util/csr/BUILD generated vendored
View file

@ -1,52 +0,0 @@
package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
"go_test",
)
go_library(
name = "go_default_library",
srcs = ["csr.go"],
deps = [
"//pkg/apis/certificates/v1beta1:go_default_library",
"//vendor/github.com/golang/glog:go_default_library",
"//vendor/k8s.io/api/certificates/v1beta1:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/api/errors:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/fields:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/runtime:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/watch:go_default_library",
"//vendor/k8s.io/client-go/kubernetes/typed/certificates/v1beta1:go_default_library",
"//vendor/k8s.io/client-go/tools/cache:go_default_library",
"//vendor/k8s.io/client-go/util/cert:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
)
go_test(
name = "go_default_test",
srcs = ["csr_test.go"],
library = ":go_default_library",
deps = [
"//vendor/k8s.io/api/certificates/v1beta1:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/watch:go_default_library",
"//vendor/k8s.io/client-go/kubernetes/typed/certificates/v1beta1:go_default_library",
"//vendor/k8s.io/client-go/util/cert:go_default_library",
],
)

207
vendor/k8s.io/kubernetes/pkg/kubelet/util/csr/csr.go generated vendored
View file

@ -1,207 +0,0 @@
/*
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 csr
import (
"crypto"
"crypto/sha512"
"crypto/x509/pkix"
"encoding/base64"
"fmt"
"reflect"
"time"
"github.com/golang/glog"
certificates "k8s.io/api/certificates/v1beta1"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/watch"
certificatesclient "k8s.io/client-go/kubernetes/typed/certificates/v1beta1"
"k8s.io/client-go/tools/cache"
certutil "k8s.io/client-go/util/cert"
certhelper "k8s.io/kubernetes/pkg/apis/certificates/v1beta1"
)
// RequestNodeCertificate will create a certificate signing request for a node
// (Organization and CommonName for the CSR will be set as expected for node
// certificates) and send it to API server, then it will watch the object's
// status, once approved by API server, it will return the API server's issued
// certificate (pem-encoded). If there is any errors, or the watch timeouts, it
// will return an error. This is intended for use on nodes (kubelet and
// kubeadm).
func RequestNodeCertificate(client certificatesclient.CertificateSigningRequestInterface, privateKeyData []byte, nodeName types.NodeName) (certData []byte, err error) {
subject := &pkix.Name{
Organization: []string{"system:nodes"},
CommonName: "system:node:" + string(nodeName),
}
privateKey, err := certutil.ParsePrivateKeyPEM(privateKeyData)
if err != nil {
return nil, fmt.Errorf("invalid private key for certificate request: %v", err)
}
csrData, err := certutil.MakeCSR(privateKey, subject, nil, nil)
if err != nil {
return nil, fmt.Errorf("unable to generate certificate request: %v", err)
}
usages := []certificates.KeyUsage{
certificates.UsageDigitalSignature,
certificates.UsageKeyEncipherment,
certificates.UsageClientAuth,
}
name := digestedName(privateKeyData, subject, usages)
return requestCertificate(client, csrData, name, usages, privateKey)
}
// requestCertificate will either use an existing (if this process has run
// before but not to completion) or create a certificate signing request using the
// PEM encoded CSR and send it to API server, then it will watch the object's
// status, once approved by API server, it will return the API server's issued
// certificate (pem-encoded). If there is any errors, or the watch timeouts, it
// will return an error.
func requestCertificate(client certificatesclient.CertificateSigningRequestInterface, csrData []byte, name string, usages []certificates.KeyUsage, privateKey interface{}) (certData []byte, err error) {
csr := &certificates.CertificateSigningRequest{
// Username, UID, Groups will be injected by API server.
TypeMeta: metav1.TypeMeta{Kind: "CertificateSigningRequest"},
ObjectMeta: metav1.ObjectMeta{
Name: name,
},
Spec: certificates.CertificateSigningRequestSpec{
Request: csrData,
Usages: usages,
},
}
req, err := client.Create(csr)
switch {
case err == nil:
case errors.IsAlreadyExists(err):
glog.Infof("csr for this node already exists, reusing")
req, err = client.Get(name, metav1.GetOptions{})
if err != nil {
return nil, fmt.Errorf("cannot retrieve certificate signing request: %v", err)
}
if err := ensureCompatible(req, csr, privateKey); err != nil {
return nil, fmt.Errorf("retrieved csr is not compatible: %v", err)
}
glog.Infof("csr for this node is still valid")
default:
return nil, fmt.Errorf("cannot create certificate signing request: %v", err)
}
fieldSelector := fields.OneTermEqualSelector("metadata.name", req.Name).String()
event, err := cache.ListWatchUntil(
3600*time.Second,
&cache.ListWatch{
ListFunc: func(options metav1.ListOptions) (runtime.Object, error) {
options.FieldSelector = fieldSelector
return client.List(options)
},
WatchFunc: func(options metav1.ListOptions) (watch.Interface, error) {
options.FieldSelector = fieldSelector
return client.Watch(options)
},
},
func(event watch.Event) (bool, error) {
switch event.Type {
case watch.Modified, watch.Added:
default:
return false, nil
}
csr := event.Object.(*certificates.CertificateSigningRequest)
if csr.UID != req.UID {
return false, fmt.Errorf("csr %q changed UIDs", csr.Name)
}
for _, c := range csr.Status.Conditions {
if c.Type == certificates.CertificateDenied {
return false, fmt.Errorf("certificate signing request is not approved, reason: %v, message: %v", c.Reason, c.Message)
}
if c.Type == certificates.CertificateApproved && csr.Status.Certificate != nil {
return true, nil
}
}
return false, nil
},
)
if err != nil {
return nil, fmt.Errorf("cannot watch on the certificate signing request: %v", err)
}
return event.Object.(*certificates.CertificateSigningRequest).Status.Certificate, nil
}
// This digest should include all the relevant pieces of the CSR we care about.
// We can't direcly hash the serialized CSR because of random padding that we
// regenerate every loop and we include usages which are not contained in the
// CSR. This needs to be kept up to date as we add new fields to the node
// certificates and with ensureCompatible.
func digestedName(privateKeyData []byte, subject *pkix.Name, usages []certificates.KeyUsage) string {
hash := sha512.New512_256()
// Here we make sure two different inputs can't write the same stream
// to the hash. This delimiter is not in the base64.URLEncoding
// alphabet so there is no way to have spill over collisions. Without
// it 'CN:foo,ORG:bar' hashes to the same value as 'CN:foob,ORG:ar'
const delimiter = '|'
encode := base64.RawURLEncoding.EncodeToString
write := func(data []byte) {
hash.Write([]byte(encode(data)))
hash.Write([]byte{delimiter})
}
write(privateKeyData)
write([]byte(subject.CommonName))
for _, v := range subject.Organization {
write([]byte(v))
}
for _, v := range usages {
write([]byte(v))
}
return "node-csr-" + encode(hash.Sum(nil))
}
// ensureCompatible ensures that a CSR object is compatible with an original CSR
func ensureCompatible(new, orig *certificates.CertificateSigningRequest, privateKey interface{}) error {
newCsr, err := certhelper.ParseCSR(new)
if err != nil {
return fmt.Errorf("unable to parse new csr: %v", err)
}
origCsr, err := certhelper.ParseCSR(orig)
if err != nil {
return fmt.Errorf("unable to parse original csr: %v", err)
}
if !reflect.DeepEqual(newCsr.Subject, origCsr.Subject) {
return fmt.Errorf("csr subjects differ: new: %#v, orig: %#v", newCsr.Subject, origCsr.Subject)
}
signer, ok := privateKey.(crypto.Signer)
if !ok {
return fmt.Errorf("privateKey is not a signer")
}
newCsr.PublicKey = signer.Public()
if err := newCsr.CheckSignature(); err != nil {
return fmt.Errorf("error validating signature new CSR against old key: %v", err)
}
return nil
}

136
vendor/k8s.io/kubernetes/pkg/kubelet/util/csr/csr_test.go generated vendored
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@ -1,136 +0,0 @@
/*
Copyright 2017 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 csr
import (
"fmt"
"testing"
certificates "k8s.io/api/certificates/v1beta1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
watch "k8s.io/apimachinery/pkg/watch"
certificatesclient "k8s.io/client-go/kubernetes/typed/certificates/v1beta1"
certutil "k8s.io/client-go/util/cert"
)
func TestRequestNodeCertificateNoKeyData(t *testing.T) {
certData, err := RequestNodeCertificate(&fakeClient{}, []byte{}, "fake-node-name")
if err == nil {
t.Errorf("Got no error, wanted error an error because there was an empty private key passed in.")
}
if certData != nil {
t.Errorf("Got cert data, wanted nothing as there should have been an error.")
}
}
func TestRequestNodeCertificateErrorCreatingCSR(t *testing.T) {
client := &fakeClient{
failureType: createError,
}
privateKeyData, err := certutil.MakeEllipticPrivateKeyPEM()
if err != nil {
t.Fatalf("Unable to generate a new private key: %v", err)
}
certData, err := RequestNodeCertificate(client, privateKeyData, "fake-node-name")
if err == nil {
t.Errorf("Got no error, wanted error an error because client.Create failed.")
}
if certData != nil {
t.Errorf("Got cert data, wanted nothing as there should have been an error.")
}
}
func TestRequestNodeCertificate(t *testing.T) {
privateKeyData, err := certutil.MakeEllipticPrivateKeyPEM()
if err != nil {
t.Fatalf("Unable to generate a new private key: %v", err)
}
certData, err := RequestNodeCertificate(&fakeClient{}, privateKeyData, "fake-node-name")
if err != nil {
t.Errorf("Got %v, wanted no error.", err)
}
if certData == nil {
t.Errorf("Got nothing, expected a CSR.")
}
}
type FailureType int
const (
noError FailureType = iota
createError
certificateSigningRequestDenied
)
type fakeClient struct {
certificatesclient.CertificateSigningRequestInterface
watch *watch.FakeWatcher
failureType FailureType
}
func (c *fakeClient) Create(*certificates.CertificateSigningRequest) (*certificates.CertificateSigningRequest, error) {
if c.failureType == createError {
return nil, fmt.Errorf("fakeClient failed creating request")
}
csr := certificates.CertificateSigningRequest{
ObjectMeta: metav1.ObjectMeta{
UID: "fake-uid",
Name: "fake-certificate-signing-request-name",
},
}
return &csr, nil
}
func (c *fakeClient) List(opts v1.ListOptions) (*certificates.CertificateSigningRequestList, error) {
return &certificates.CertificateSigningRequestList{}, nil
}
func (c *fakeClient) Watch(opts v1.ListOptions) (watch.Interface, error) {
c.watch = watch.NewFakeWithChanSize(1, false)
c.watch.Add(c.generateCSR())
c.watch.Stop()
return c.watch, nil
}
func (c *fakeClient) generateCSR() *certificates.CertificateSigningRequest {
var condition certificates.CertificateSigningRequestCondition
if c.failureType == certificateSigningRequestDenied {
condition = certificates.CertificateSigningRequestCondition{
Type: certificates.CertificateDenied,
}
} else {
condition = certificates.CertificateSigningRequestCondition{
Type: certificates.CertificateApproved,
}
}
csr := certificates.CertificateSigningRequest{
ObjectMeta: metav1.ObjectMeta{
UID: "fake-uid",
},
Status: certificates.CertificateSigningRequestStatus{
Conditions: []certificates.CertificateSigningRequestCondition{
condition,
},
Certificate: []byte{},
},
}
return &csr
}

40
vendor/k8s.io/kubernetes/pkg/kubelet/util/queue/BUILD generated vendored
View file

@ -1,40 +0,0 @@
package(default_visibility = ["//visibility:public"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_library",
"go_test",
)
go_library(
name = "go_default_library",
srcs = ["work_queue.go"],
deps = [
"//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/clock:go_default_library",
],
)
go_test(
name = "go_default_test",
srcs = ["work_queue_test.go"],
library = ":go_default_library",
deps = [
"//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/clock:go_default_library",
"//vendor/k8s.io/apimachinery/pkg/util/sets:go_default_library",
],
)
filegroup(
name = "package-srcs",
srcs = glob(["**"]),
tags = ["automanaged"],
visibility = ["//visibility:private"],
)
filegroup(
name = "all-srcs",
srcs = [":package-srcs"],
tags = ["automanaged"],
)

67
vendor/k8s.io/kubernetes/pkg/kubelet/util/queue/work_queue.go generated vendored
View file

@ -1,67 +0,0 @@
/*
Copyright 2015 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 queue
import (
"sync"
"time"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/clock"
)
// WorkQueue allows queuing items with a timestamp. An item is
// considered ready to process if the timestamp has expired.
type WorkQueue interface {
// GetWork dequeues and returns all ready items.
GetWork() []types.UID
// Enqueue inserts a new item or overwrites an existing item.
Enqueue(item types.UID, delay time.Duration)
}
type basicWorkQueue struct {
clock clock.Clock
lock sync.Mutex
queue map[types.UID]time.Time
}
var _ WorkQueue = &basicWorkQueue{}
func NewBasicWorkQueue(clock clock.Clock) WorkQueue {
queue := make(map[types.UID]time.Time)
return &basicWorkQueue{queue: queue, clock: clock}
}
func (q *basicWorkQueue) GetWork() []types.UID {
q.lock.Lock()
defer q.lock.Unlock()
now := q.clock.Now()
var items []types.UID
for k, v := range q.queue {
if v.Before(now) {
items = append(items, k)
delete(q.queue, k)
}
}
return items
}
func (q *basicWorkQueue) Enqueue(item types.UID, delay time.Duration) {
q.lock.Lock()
defer q.lock.Unlock()
q.queue[item] = q.clock.Now().Add(delay)
}

65
vendor/k8s.io/kubernetes/pkg/kubelet/util/queue/work_queue_test.go generated vendored
View file

@ -1,65 +0,0 @@
/*
Copyright 2015 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 queue
import (
"testing"
"time"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/clock"
"k8s.io/apimachinery/pkg/util/sets"
)
func newTestBasicWorkQueue() (*basicWorkQueue, *clock.FakeClock) {
fakeClock := clock.NewFakeClock(time.Now())
wq := &basicWorkQueue{
clock: fakeClock,
queue: make(map[types.UID]time.Time),
}
return wq, fakeClock
}
func compareResults(t *testing.T, expected, actual []types.UID) {
expectedSet := sets.NewString()
for _, u := range expected {
expectedSet.Insert(string(u))
}
actualSet := sets.NewString()
for _, u := range actual {
actualSet.Insert(string(u))
}
if !expectedSet.Equal(actualSet) {
t.Errorf("Expected %#v, got %#v", expectedSet.List(), actualSet.List())
}
}
func TestGetWork(t *testing.T) {
q, clock := newTestBasicWorkQueue()
q.Enqueue(types.UID("foo1"), -1*time.Minute)
q.Enqueue(types.UID("foo2"), -1*time.Minute)
q.Enqueue(types.UID("foo3"), 1*time.Minute)
q.Enqueue(types.UID("foo4"), 1*time.Minute)
expected := []types.UID{types.UID("foo1"), types.UID("foo2")}
compareResults(t, expected, q.GetWork())
compareResults(t, []types.UID{}, q.GetWork())
// Dial the time to 1 hour ahead.
clock.Step(time.Hour)
expected = []types.UID{types.UID("foo3"), types.UID("foo4")}
compareResults(t, expected, q.GetWork())
compareResults(t, []types.UID{}, q.GetWork())
}