96 lines
2.6 KiB
Go
96 lines
2.6 KiB
Go
/*
|
|
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 cache
|
|
|
|
import (
|
|
"math/rand"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/pborman/uuid"
|
|
|
|
"k8s.io/apimachinery/pkg/util/clock"
|
|
"k8s.io/apiserver/pkg/authentication/authenticator"
|
|
"k8s.io/apiserver/pkg/authentication/user"
|
|
)
|
|
|
|
func TestSimpleCache(t *testing.T) {
|
|
testCache(newSimpleCache(4096, clock.RealClock{}), t)
|
|
}
|
|
|
|
func BenchmarkSimpleCache(b *testing.B) {
|
|
benchmarkCache(newSimpleCache(4096, clock.RealClock{}), b)
|
|
}
|
|
|
|
func TestStripedCache(t *testing.T) {
|
|
testCache(newStripedCache(32, fnvHashFunc, func() cache { return newSimpleCache(128, clock.RealClock{}) }), t)
|
|
}
|
|
|
|
func BenchmarkStripedCache(b *testing.B) {
|
|
benchmarkCache(newStripedCache(32, fnvHashFunc, func() cache { return newSimpleCache(128, clock.RealClock{}) }), b)
|
|
}
|
|
|
|
func benchmarkCache(cache cache, b *testing.B) {
|
|
keys := []string{}
|
|
for i := 0; i < b.N; i++ {
|
|
key := uuid.NewRandom().String()
|
|
keys = append(keys, key)
|
|
}
|
|
|
|
b.ResetTimer()
|
|
|
|
b.SetParallelism(500)
|
|
b.RunParallel(func(pb *testing.PB) {
|
|
for pb.Next() {
|
|
key := keys[rand.Intn(b.N)]
|
|
_, ok := cache.get(key)
|
|
if ok {
|
|
cache.remove(key)
|
|
} else {
|
|
cache.set(key, &cacheRecord{}, time.Second)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
func testCache(cache cache, t *testing.T) {
|
|
if result, ok := cache.get("foo"); ok || result != nil {
|
|
t.Errorf("Expected null, false, got %#v, %v", result, ok)
|
|
}
|
|
|
|
record1 := &cacheRecord{resp: &authenticator.Response{User: &user.DefaultInfo{Name: "bob"}}}
|
|
record2 := &cacheRecord{resp: &authenticator.Response{User: &user.DefaultInfo{Name: "alice"}}}
|
|
|
|
// when empty, record is stored
|
|
cache.set("foo", record1, time.Hour)
|
|
if result, ok := cache.get("foo"); !ok || result != record1 {
|
|
t.Errorf("Expected %#v, true, got %#v, %v", record1, result, ok)
|
|
}
|
|
|
|
// newer record overrides
|
|
cache.set("foo", record2, time.Hour)
|
|
if result, ok := cache.get("foo"); !ok || result != record2 {
|
|
t.Errorf("Expected %#v, true, got %#v, %v", record2, result, ok)
|
|
}
|
|
|
|
// removing the current value removes
|
|
cache.remove("foo")
|
|
if result, ok := cache.get("foo"); ok || result != nil {
|
|
t.Errorf("Expected null, false, got %#v, %v", result, ok)
|
|
}
|
|
}
|