mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-10-31 13:50:01 +00:00
97 lines
2.6 KiB
Go
97 lines
2.6 KiB
Go
/*
|
|
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))
|
|
}
|
|
}
|