78ce5da988
A lot of packages use StringSet, but they don't use anything else from the util package. Moving StringSet into another package will shrink their dependency trees significantly.
151 lines
3.2 KiB
Go
151 lines
3.2 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package portallocator
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import (
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"testing"
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"strconv"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/util"
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"k8s.io/kubernetes/pkg/util/sets"
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)
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func TestAllocate(t *testing.T) {
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pr, err := util.ParsePortRange("10000-10200")
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if err != nil {
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t.Fatal(err)
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}
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r := NewPortAllocator(*pr)
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if f := r.Free(); f != 201 {
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t.Errorf("unexpected free %d", f)
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}
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found := sets.NewString()
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count := 0
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for r.Free() > 0 {
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p, err := r.AllocateNext()
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if err != nil {
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t.Fatalf("error @ %d: %v", count, err)
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}
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count++
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if !pr.Contains(p) {
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t.Fatalf("allocated %d which is outside of %v", p, pr)
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}
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if found.Has(strconv.Itoa(p)) {
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t.Fatalf("allocated %d twice @ %d", p, count)
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}
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found.Insert(strconv.Itoa(p))
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}
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if _, err := r.AllocateNext(); err != ErrFull {
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t.Fatal(err)
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}
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released := 10005
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if err := r.Release(released); err != nil {
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t.Fatal(err)
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}
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if f := r.Free(); f != 1 {
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t.Errorf("unexpected free %d", f)
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}
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p, err := r.AllocateNext()
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if err != nil {
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t.Fatal(err)
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}
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if released != p {
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t.Errorf("unexpected %d : %d", p, released)
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}
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if err := r.Release(released); err != nil {
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t.Fatal(err)
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}
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if err := r.Allocate(1); err != ErrNotInRange {
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t.Fatal(err)
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}
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if err := r.Allocate(10001); err != ErrAllocated {
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t.Fatal(err)
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}
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if err := r.Allocate(20000); err != ErrNotInRange {
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t.Fatal(err)
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}
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if err := r.Allocate(10201); err != ErrNotInRange {
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t.Fatal(err)
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}
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if f := r.Free(); f != 1 {
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t.Errorf("unexpected free %d", f)
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}
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if err := r.Allocate(released); err != nil {
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t.Fatal(err)
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}
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if f := r.Free(); f != 0 {
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t.Errorf("unexpected free %d", f)
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}
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}
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func TestSnapshot(t *testing.T) {
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pr, err := util.ParsePortRange("10000-10200")
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if err != nil {
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t.Fatal(err)
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}
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r := NewPortAllocator(*pr)
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ports := []int{}
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for i := 0; i < 10; i++ {
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port, err := r.AllocateNext()
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if err != nil {
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t.Fatal(err)
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}
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ports = append(ports, port)
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}
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var dst api.RangeAllocation
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err = r.Snapshot(&dst)
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if err != nil {
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t.Fatal(err)
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}
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pr2, err := util.ParsePortRange(dst.Range)
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if err != nil {
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t.Fatal(err)
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}
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if pr.String() != pr2.String() {
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t.Fatalf("mismatched networks: %s : %s", pr, pr2)
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}
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otherPr, err := util.ParsePortRange("200-300")
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if err != nil {
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t.Fatal(err)
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}
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other := NewPortAllocator(*otherPr)
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if err := r.Restore(*otherPr, dst.Data); err != ErrMismatchedNetwork {
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t.Fatal(err)
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}
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other = NewPortAllocator(*pr2)
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if err := other.Restore(*pr2, dst.Data); err != nil {
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t.Fatal(err)
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}
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for _, n := range ports {
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if !other.Has(n) {
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t.Errorf("restored range does not have %d", n)
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}
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}
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if other.Free() != r.Free() {
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t.Errorf("counts do not match: %d", other.Free())
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}
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}
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