mirror of
https://github.com/k3s-io/kubernetes.git
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115 lines
3.2 KiB
Go
115 lines
3.2 KiB
Go
/*
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Copyright 2014 Google Inc. 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 registry
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import (
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"math/rand"
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"testing"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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)
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func expectSchedule(scheduler Scheduler, pod api.Pod, expected string, t *testing.T) {
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actual, err := scheduler.Schedule(pod)
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expectNoError(t, err)
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if actual != expected {
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t.Errorf("Unexpected scheduling value: %d, expected %d", actual, expected)
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}
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}
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func TestRoundRobinScheduler(t *testing.T) {
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scheduler := MakeRoundRobinScheduler([]string{"m1", "m2", "m3", "m4"})
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expectSchedule(scheduler, api.Pod{}, "m1", t)
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expectSchedule(scheduler, api.Pod{}, "m2", t)
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expectSchedule(scheduler, api.Pod{}, "m3", t)
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expectSchedule(scheduler, api.Pod{}, "m4", t)
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}
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func TestRandomScheduler(t *testing.T) {
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random := rand.New(rand.NewSource(0))
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scheduler := MakeRandomScheduler([]string{"m1", "m2", "m3", "m4"}, *random)
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_, err := scheduler.Schedule(api.Pod{})
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expectNoError(t, err)
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}
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func TestFirstFitSchedulerNothingScheduled(t *testing.T) {
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mockRegistry := MockPodRegistry{}
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r := rand.New(rand.NewSource(0))
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scheduler := MakeFirstFitScheduler([]string{"m1", "m2", "m3"}, &mockRegistry, r)
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expectSchedule(scheduler, api.Pod{}, "m3", t)
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}
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func makePod(host string, hostPorts ...int) api.Pod {
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networkPorts := []api.Port{}
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for _, port := range hostPorts {
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networkPorts = append(networkPorts, api.Port{HostPort: port})
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}
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return api.Pod{
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CurrentState: api.PodState{
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Host: host,
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},
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DesiredState: api.PodState{
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Manifest: api.ContainerManifest{
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Containers: []api.Container{
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{
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Ports: networkPorts,
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},
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},
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},
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},
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}
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}
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func TestFirstFitSchedulerFirstScheduled(t *testing.T) {
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mockRegistry := MockPodRegistry{
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pods: []api.Pod{
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makePod("m1", 8080),
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},
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}
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r := rand.New(rand.NewSource(0))
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scheduler := MakeFirstFitScheduler([]string{"m1", "m2", "m3"}, &mockRegistry, r)
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expectSchedule(scheduler, makePod("", 8080), "m3", t)
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}
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func TestFirstFitSchedulerFirstScheduledComplicated(t *testing.T) {
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mockRegistry := MockPodRegistry{
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pods: []api.Pod{
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makePod("m1", 80, 8080),
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makePod("m2", 8081, 8082, 8083),
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makePod("m3", 80, 443, 8085),
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},
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}
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r := rand.New(rand.NewSource(0))
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scheduler := MakeFirstFitScheduler([]string{"m1", "m2", "m3"}, &mockRegistry, r)
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expectSchedule(scheduler, makePod("", 8080, 8081), "m3", t)
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}
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func TestFirstFitSchedulerFirstScheduledImpossible(t *testing.T) {
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mockRegistry := MockPodRegistry{
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pods: []api.Pod{
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makePod("m1", 8080),
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makePod("m2", 8081),
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makePod("m3", 8080),
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},
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}
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r := rand.New(rand.NewSource(0))
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scheduler := MakeFirstFitScheduler([]string{"m1", "m2", "m3"}, &mockRegistry, r)
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_, err := scheduler.Schedule(makePod("", 8080, 8081))
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if err == nil {
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t.Error("Unexpected non-error.")
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}
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}
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