111 lines
3.1 KiB
Go
111 lines
3.1 KiB
Go
// Copyright 2014 Google Inc. All Rights Reserved.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package cadvisor
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import (
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"encoding/json"
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"fmt"
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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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"time"
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"github.com/google/cadvisor/info"
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itest "github.com/google/cadvisor/info/test"
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)
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func testGetJsonData(
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expected interface{},
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f func() (interface{}, error),
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) error {
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reply, err := f()
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if err != nil {
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return fmt.Errorf("unable to retrieve data: %v", err)
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}
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if !reflect.DeepEqual(reply, expected) {
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return fmt.Errorf("retrieved wrong data: %+v != %+v", reply, expected)
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}
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return nil
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}
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func cadvisorTestClient(path string, expectedPostObj, expectedPostObjEmpty, replyObj interface{}) (*Client, *httptest.Server, error) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.URL.Path == path {
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if expectedPostObj != nil {
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decoder := json.NewDecoder(r.Body)
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err := decoder.Decode(expectedPostObjEmpty)
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if err != nil {
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fmt.Fprintf(w, "received invalid json object: %v", err)
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return
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}
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}
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encoder := json.NewEncoder(w)
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encoder.Encode(replyObj)
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} else if r.URL.Path == "/api/v1.0/machine" {
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fmt.Fprint(w, `{"num_cores":8,"memory_capacity":31625871360}`)
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} else {
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w.WriteHeader(http.StatusNotFound)
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fmt.Fprintf(w, "Page not found.")
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}
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}))
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client, err := NewClient(ts.URL)
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if err != nil {
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ts.Close()
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return nil, nil, err
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}
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return client, ts, err
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}
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func TestGetMachineinfo(t *testing.T) {
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minfo := &info.MachineInfo{
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NumCores: 8,
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MemoryCapacity: 31625871360,
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}
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client, server, err := cadvisorTestClient("/api/v1.0/machine", nil, nil, minfo)
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if err != nil {
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t.Fatalf("unable to get a client %v", err)
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}
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defer server.Close()
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err = testGetJsonData(minfo, func() (interface{}, error) {
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return client.MachineInfo()
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestGetContainerInfo(t *testing.T) {
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query := &info.ContainerInfoQuery{
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NumStats: 512,
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NumSamples: 256,
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CpuUsagePercentages: []int{10, 50, 90},
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MemoryUsagePercentages: []int{10, 80, 90},
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}
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containerName := "/some/container"
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cinfo := itest.GenerateRandomContainerInfo(containerName, 4, query, 1*time.Second)
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client, server, err := cadvisorTestClient(fmt.Sprintf("/api/v1.0/containers%v", containerName), query, &info.ContainerInfoQuery{}, cinfo)
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if err != nil {
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t.Fatalf("unable to get a client %v", err)
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}
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defer server.Close()
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err = testGetJsonData(cinfo, func() (interface{}, error) {
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return client.ContainerInfo(containerName, nil)
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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