Rename kubelet_server*.go to server*.go
This commit is contained in:
Clayton Coleman
227
pkg/kubelet/server_test.go
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227
pkg/kubelet/server_test.go
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@@ -0,0 +1,227 @@
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/*
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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 kubelet
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"reflect"
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"testing"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
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"github.com/fsouza/go-dockerclient"
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"github.com/google/cadvisor/info"
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)
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type fakeKubelet struct {
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infoFunc func(name string) (api.PodInfo, error)
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containerStatsFunc func(podID, containerName string, req *info.ContainerInfoRequest) (*info.ContainerInfo, error)
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machineStatsFunc func(query *info.ContainerInfoRequest) (*info.ContainerInfo, error)
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}
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func (fk *fakeKubelet) GetPodInfo(name string) (api.PodInfo, error) {
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return fk.infoFunc(name)
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}
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func (fk *fakeKubelet) GetContainerInfo(podID, containerName string, req *info.ContainerInfoRequest) (*info.ContainerInfo, error) {
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return fk.containerStatsFunc(podID, containerName, req)
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}
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func (fk *fakeKubelet) GetMachineStats(req *info.ContainerInfoRequest) (*info.ContainerInfo, error) {
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return fk.machineStatsFunc(req)
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}
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type serverTestFramework struct {
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updateChan chan manifestUpdate
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updateReader *channelReader
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serverUnderTest *Server
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fakeKubelet *fakeKubelet
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testHTTPServer *httptest.Server
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}
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func makeServerTest() *serverTestFramework {
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fw := &serverTestFramework{
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updateChan: make(chan manifestUpdate),
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}
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fw.updateReader = startReading(fw.updateChan)
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fw.fakeKubelet = &fakeKubelet{}
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fw.serverUnderTest = &Server{
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Kubelet: fw.fakeKubelet,
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UpdateChannel: fw.updateChan,
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}
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fw.testHTTPServer = httptest.NewServer(fw.serverUnderTest)
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return fw
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}
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func readResp(resp *http.Response) (string, error) {
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defer resp.Body.Close()
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body, err := ioutil.ReadAll(resp.Body)
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return string(body), err
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}
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func TestContainer(t *testing.T) {
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fw := makeServerTest()
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expected := []api.ContainerManifest{
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{ID: "test_manifest"},
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}
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body := bytes.NewBuffer([]byte(util.MakeJSONString(expected[0]))) // Only send a single ContainerManifest
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resp, err := http.Post(fw.testHTTPServer.URL+"/container", "application/json", body)
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if err != nil {
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t.Errorf("Post returned: %v", err)
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}
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resp.Body.Close()
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close(fw.updateChan)
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received := fw.updateReader.GetList()
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if len(received) != 1 {
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t.Errorf("Expected 1 manifest, but got %v", len(received))
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}
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if !reflect.DeepEqual(expected, received[0]) {
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t.Errorf("Expected %#v, but got %#v", expected, received[0])
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}
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}
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func TestContainers(t *testing.T) {
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fw := makeServerTest()
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expected := []api.ContainerManifest{
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{ID: "test_manifest_1"},
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{ID: "test_manifest_2"},
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}
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body := bytes.NewBuffer([]byte(util.MakeJSONString(expected)))
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resp, err := http.Post(fw.testHTTPServer.URL+"/containers", "application/json", body)
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if err != nil {
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t.Errorf("Post returned: %v", err)
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}
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resp.Body.Close()
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close(fw.updateChan)
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received := fw.updateReader.GetList()
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if len(received) != 1 {
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t.Errorf("Expected 1 update, but got %v", len(received))
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}
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if !reflect.DeepEqual(expected, received[0]) {
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t.Errorf("Expected %#v, but got %#v", expected, received[0])
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}
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}
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func TestPodInfo(t *testing.T) {
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fw := makeServerTest()
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expected := api.PodInfo{"goodpod": docker.Container{ID: "myContainerID"}}
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fw.fakeKubelet.infoFunc = func(name string) (api.PodInfo, error) {
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if name == "goodpod" {
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return expected, nil
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}
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return nil, fmt.Errorf("bad pod")
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}
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resp, err := http.Get(fw.testHTTPServer.URL + "/podInfo?podID=goodpod")
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if err != nil {
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t.Errorf("Got error GETing: %v", err)
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}
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got, err := readResp(resp)
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if err != nil {
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t.Errorf("Error reading body: %v", err)
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}
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expectedBytes, err := json.Marshal(expected)
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if err != nil {
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t.Fatalf("Unexpected marshal error %v", err)
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}
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if got != string(expectedBytes) {
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t.Errorf("Expected: '%v', got: '%v'", expected, got)
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}
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}
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func TestContainerStats(t *testing.T) {
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fw := makeServerTest()
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expectedStats := &info.ContainerInfo{
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StatsPercentiles: &info.ContainerStatsPercentiles{
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MaxMemoryUsage: 1024001,
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CpuUsagePercentiles: []info.Percentile{
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{50, 150},
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{80, 180},
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{90, 190},
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},
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MemoryUsagePercentiles: []info.Percentile{
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{50, 150},
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{80, 180},
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{90, 190},
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},
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},
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}
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expectedPodID := "somepod"
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expectedContainerName := "goodcontainer"
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fw.fakeKubelet.containerStatsFunc = func(podID, containerName string, req *info.ContainerInfoRequest) (*info.ContainerInfo, error) {
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if podID != expectedPodID || containerName != expectedContainerName {
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return nil, fmt.Errorf("bad podID or containerName: podID=%v; containerName=%v", podID, containerName)
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}
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return expectedStats, nil
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}
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resp, err := http.Get(fw.testHTTPServer.URL + fmt.Sprintf("/stats/%v/%v", expectedPodID, expectedContainerName))
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if err != nil {
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t.Fatalf("Got error GETing: %v", err)
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}
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defer resp.Body.Close()
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var receivedStats info.ContainerInfo
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decoder := json.NewDecoder(resp.Body)
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err = decoder.Decode(&receivedStats)
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if err != nil {
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t.Fatalf("received invalid json data: %v", err)
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}
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if !reflect.DeepEqual(&receivedStats, expectedStats) {
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t.Errorf("received wrong data: %#v", receivedStats)
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}
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}
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func TestMachineStats(t *testing.T) {
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fw := makeServerTest()
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expectedStats := &info.ContainerInfo{
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StatsPercentiles: &info.ContainerStatsPercentiles{
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MaxMemoryUsage: 1024001,
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CpuUsagePercentiles: []info.Percentile{
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{50, 150},
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{80, 180},
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{90, 190},
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},
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MemoryUsagePercentiles: []info.Percentile{
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{50, 150},
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{80, 180},
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{90, 190},
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},
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},
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}
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fw.fakeKubelet.machineStatsFunc = func(req *info.ContainerInfoRequest) (*info.ContainerInfo, error) {
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return expectedStats, nil
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}
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resp, err := http.Get(fw.testHTTPServer.URL + "/stats")
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if err != nil {
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t.Fatalf("Got error GETing: %v", err)
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}
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defer resp.Body.Close()
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var receivedStats info.ContainerInfo
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decoder := json.NewDecoder(resp.Body)
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err = decoder.Decode(&receivedStats)
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if err != nil {
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t.Fatalf("received invalid json data: %v", err)
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}
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if !reflect.DeepEqual(&receivedStats, expectedStats) {
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t.Errorf("received wrong data: %#v", receivedStats)
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}
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}
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