func TestRootInfo(t *testing.T) {
fw := newServerTest()
expectedInfo := &cadvisorApi.ContainerInfo{
ContainerReference: cadvisorApi.ContainerReference{
Name: "/",
},
}
fw.fakeKubelet.rawInfoFunc = func(req *cadvisorApi.ContainerInfoRequest) (map[string]*cadvisorApi.ContainerInfo, error) {
return map[string]*cadvisorApi.ContainerInfo{
expectedInfo.Name: expectedInfo,
}, nil
}
resp, err := http.Get(fw.testHTTPServer.URL + "/stats")
if err != nil {
t.Fatalf("Got error GETing: %v", err)
}
defer resp.Body.Close()
var receivedInfo cadvisorApi.ContainerInfo
err = json.NewDecoder(resp.Body).Decode(&receivedInfo)
if err != nil {
t.Fatalf("received invalid json data: %v", err)
}
if !receivedInfo.Eq(expectedInfo) {
t.Errorf("received wrong data: %#v, expected %#v", receivedInfo, expectedInfo)
}
}
func TestContainerInfoWithUidNamespace(t *testing.T) {
fw := newServerTest()
expectedInfo := &cadvisorApi.ContainerInfo{}
podID := "somepod"
expectedNamespace := "custom"
expectedPodID := getPodName(podID, expectedNamespace)
expectedContainerName := "goodcontainer"
expectedUid := "9b01b80f-8fb4-11e4-95ab-4200af06647"
fw.fakeKubelet.containerInfoFunc = func(podID string, uid types.UID, containerName string, req *cadvisorApi.ContainerInfoRequest) (*cadvisorApi.ContainerInfo, error) {
if podID != expectedPodID || string(uid) != expectedUid || containerName != expectedContainerName {
return nil, fmt.Errorf("bad podID or uid or containerName: podID=%v; uid=%v; containerName=%v", podID, uid, containerName)
}
return expectedInfo, nil
}
resp, err := http.Get(fw.testHTTPServer.URL + fmt.Sprintf("/stats/%v/%v/%v/%v", expectedNamespace, podID, expectedUid, expectedContainerName))
if err != nil {
t.Fatalf("Got error GETing: %v", err)
}
defer resp.Body.Close()
var receivedInfo cadvisorApi.ContainerInfo
err = json.NewDecoder(resp.Body).Decode(&receivedInfo)
if err != nil {
t.Fatalf("received invalid json data: %v", err)
}
if !receivedInfo.Eq(expectedInfo) {
t.Errorf("received wrong data: %#v", receivedInfo)
}
}
func (self *KubeletClient) parseStat(containerInfo *cadvisor.ContainerInfo) *cadvisor.ContainerInfo {
containerInfo.Stats = sampleContainerStats(containerInfo.Stats)
if len(containerInfo.Aliases) > 0 {
containerInfo.Name = containerInfo.Aliases[0]
}
return containerInfo
}
func testHTTPContainerInfoGetter(
req *cadvisorApi.ContainerInfoRequest,
cinfo *cadvisorApi.ContainerInfo,
podID string,
containerID string,
status int,
t *testing.T,
) {
expectedPath := "/stats"
if len(podID) > 0 && len(containerID) > 0 {
expectedPath = path.Join(expectedPath, podID, containerID)
}
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if status != 0 {
w.WriteHeader(status)
}
if strings.TrimRight(r.URL.Path, "/") != strings.TrimRight(expectedPath, "/") {
t.Fatalf("Received request to an invalid path. Should be %v. got %v",
expectedPath, r.URL.Path)
}
var receivedReq cadvisorApi.ContainerInfoRequest
err := json.NewDecoder(r.Body).Decode(&receivedReq)
if err != nil {
t.Fatal(err)
}
// Note: This will not make a deep copy of req.
// So changing req after Get*Info would be a race.
expectedReq := req
// Fill any empty fields with default value
if !expectedReq.Equals(receivedReq) {
t.Errorf("received wrong request")
}
err = json.NewEncoder(w).Encode(cinfo)
if err != nil {
t.Fatal(err)
}
}))
defer ts.Close()
hostURL, err := url.Parse(ts.URL)
if err != nil {
t.Fatal(err)
}
parts := strings.Split(hostURL.Host, ":")
port, err := strconv.Atoi(parts[1])
if err != nil {
t.Fatal(err)
}
containerInfoGetter := &HTTPContainerInfoGetter{
Client: http.DefaultClient,
Port: port,
}
var receivedContainerInfo *cadvisorApi.ContainerInfo
if len(podID) > 0 && len(containerID) > 0 {
receivedContainerInfo, err = containerInfoGetter.GetContainerInfo(parts[0], podID, containerID, req)
} else {
receivedContainerInfo, err = containerInfoGetter.GetRootInfo(parts[0], req)
}
if status == 0 || status == http.StatusOK {
if err != nil {
t.Errorf("received unexpected error: %v", err)
}
if !receivedContainerInfo.Eq(cinfo) {
t.Error("received unexpected container info")
}
} else {
if err == nil {
t.Error("did not receive expected error.")
}
}
}