mirror of https://github.com/k3s-io/k3s
151 lines
3.2 KiB
Go
151 lines
3.2 KiB
Go
/*
|
|
Copyright 2015 The Kubernetes Authors All rights reserved.
|
|
|
|
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 portallocator
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"strconv"
|
|
|
|
"k8s.io/kubernetes/pkg/api"
|
|
"k8s.io/kubernetes/pkg/util/net"
|
|
"k8s.io/kubernetes/pkg/util/sets"
|
|
)
|
|
|
|
func TestAllocate(t *testing.T) {
|
|
pr, err := net.ParsePortRange("10000-10200")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
r := NewPortAllocator(*pr)
|
|
if f := r.Free(); f != 201 {
|
|
t.Errorf("unexpected free %d", f)
|
|
}
|
|
found := sets.NewString()
|
|
count := 0
|
|
for r.Free() > 0 {
|
|
p, err := r.AllocateNext()
|
|
if err != nil {
|
|
t.Fatalf("error @ %d: %v", count, err)
|
|
}
|
|
count++
|
|
if !pr.Contains(p) {
|
|
t.Fatalf("allocated %d which is outside of %v", p, pr)
|
|
}
|
|
if found.Has(strconv.Itoa(p)) {
|
|
t.Fatalf("allocated %d twice @ %d", p, count)
|
|
}
|
|
found.Insert(strconv.Itoa(p))
|
|
}
|
|
if _, err := r.AllocateNext(); err != ErrFull {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
released := 10005
|
|
if err := r.Release(released); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if f := r.Free(); f != 1 {
|
|
t.Errorf("unexpected free %d", f)
|
|
}
|
|
p, err := r.AllocateNext()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if released != p {
|
|
t.Errorf("unexpected %d : %d", p, released)
|
|
}
|
|
|
|
if err := r.Release(released); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := r.Allocate(1); err != ErrNotInRange {
|
|
t.Fatal(err)
|
|
}
|
|
if err := r.Allocate(10001); err != ErrAllocated {
|
|
t.Fatal(err)
|
|
}
|
|
if err := r.Allocate(20000); err != ErrNotInRange {
|
|
t.Fatal(err)
|
|
}
|
|
if err := r.Allocate(10201); err != ErrNotInRange {
|
|
t.Fatal(err)
|
|
}
|
|
if f := r.Free(); f != 1 {
|
|
t.Errorf("unexpected free %d", f)
|
|
}
|
|
if err := r.Allocate(released); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if f := r.Free(); f != 0 {
|
|
t.Errorf("unexpected free %d", f)
|
|
}
|
|
}
|
|
|
|
func TestSnapshot(t *testing.T) {
|
|
pr, err := net.ParsePortRange("10000-10200")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
r := NewPortAllocator(*pr)
|
|
ports := []int{}
|
|
for i := 0; i < 10; i++ {
|
|
port, err := r.AllocateNext()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
ports = append(ports, port)
|
|
}
|
|
|
|
var dst api.RangeAllocation
|
|
err = r.Snapshot(&dst)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
pr2, err := net.ParsePortRange(dst.Range)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if pr.String() != pr2.String() {
|
|
t.Fatalf("mismatched networks: %s : %s", pr, pr2)
|
|
}
|
|
|
|
otherPr, err := net.ParsePortRange("200-300")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
other := NewPortAllocator(*otherPr)
|
|
if err := r.Restore(*otherPr, dst.Data); err != ErrMismatchedNetwork {
|
|
t.Fatal(err)
|
|
}
|
|
other = NewPortAllocator(*pr2)
|
|
if err := other.Restore(*pr2, dst.Data); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
for _, n := range ports {
|
|
if !other.Has(n) {
|
|
t.Errorf("restored range does not have %d", n)
|
|
}
|
|
}
|
|
if other.Free() != r.Free() {
|
|
t.Errorf("counts do not match: %d", other.Free())
|
|
}
|
|
}
|