client/service_logs_test.go

   1 package client
   2
   3 import (
   4         "bytes"
   5         "fmt"
   6         "io"
   7         "io/ioutil"
   8         "log"
   9         "net/http"
  10         "os"
  11         "strings"
  12         "testing"
  13         "time"
  14
  15         "github.com/docker/docker/api/types"
  16
  17         "golang.org/x/net/context"
  18 )
  19
  20 func TestServiceLogsError(t *testing.T) {
  21         client := &Client{
  22                 client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
  23         }
  24         _, err := client.ServiceLogs(context.Background(), "service_id", types.ContainerLogsOptions{})
  25         if err == nil || err.Error() != "Error response from daemon: Server error" {
  26                 t.Fatalf("expected a Server Error, got %v", err)
  27         }
  28         _, err = client.ServiceLogs(context.Background(), "service_id", types.ContainerLogsOptions{
  29                 Since: "2006-01-02TZ",
  30         })
  31         if err == nil || !strings.Contains(err.Error(), `parsing time "2006-01-02TZ"`) {
  32                 t.Fatalf("expected a 'parsing time' error, got %v", err)
  33         }
  34 }
  35
  36 func TestServiceLogs(t *testing.T) {
  37         expectedURL := "/services/service_id/logs"
  38         cases := []struct {
  39                 options             types.ContainerLogsOptions
  40                 expectedQueryParams map[string]string
  41         }{
  42                 {
  43                         expectedQueryParams: map[string]string{
  44                                 "tail": "",
  45                         },
  46                 },
  47                 {
  48                         options: types.ContainerLogsOptions{
  49                                 Tail: "any",
  50                         },
  51                         expectedQueryParams: map[string]string{
  52                                 "tail": "any",
  53                         },
  54                 },
  55                 {
  56                         options: types.ContainerLogsOptions{
  57                                 ShowStdout: true,
  58                                 ShowStderr: true,
  59                                 Timestamps: true,
  60                                 Details:    true,
  61                                 Follow:     true,
  62                         },
  63                         expectedQueryParams: map[string]string{
  64                                 "tail":       "",
  65                                 "stdout":     "1",
  66                                 "stderr":     "1",
  67                                 "timestamps": "1",
  68                                 "details":    "1",
  69                                 "follow":     "1",
  70                         },
  71                 },
  72                 {
  73                         options: types.ContainerLogsOptions{
  74                                 // An complete invalid date, timestamp or go duration will be
  75                                 // passed as is
  76                                 Since: "invalid but valid",
  77                         },
  78                         expectedQueryParams: map[string]string{
  79                                 "tail":  "",
  80                                 "since": "invalid but valid",
  81                         },
  82                 },
  83         }
  84         for _, logCase := range cases {
  85                 client := &Client{
  86                         client: newMockClient(func(r *http.Request) (*http.Response, error) {
  87                                 if !strings.HasPrefix(r.URL.Path, expectedURL) {
  88                                         return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, r.URL)
  89                                 }
  90                                 // Check query parameters
  91                                 query := r.URL.Query()
  92                                 for key, expected := range logCase.expectedQueryParams {
  93                                         actual := query.Get(key)
  94                                         if actual != expected {
  95                                                 return nil, fmt.Errorf("%s not set in URL query properly. Expected '%s', got %s", key, expected, actual)
  96                                         }
  97                                 }
  98                                 return &http.Response{
  99                                         StatusCode: http.StatusOK,
 100                                         Body:       ioutil.NopCloser(bytes.NewReader([]byte("response"))),
 101                                 }, nil
 102                         }),
 103                 }
 104                 body, err := client.ServiceLogs(context.Background(), "service_id", logCase.options)
 105                 if err != nil {
 106                         t.Fatal(err)
 107                 }
 108                 defer body.Close()
 109                 content, err := ioutil.ReadAll(body)
 110                 if err != nil {
 111                         t.Fatal(err)
 112                 }
 113                 if string(content) != "response" {
 114                         t.Fatalf("expected response to contain 'response', got %s", string(content))
 115                 }
 116         }
 117 }
 118
 119 func ExampleClient_ServiceLogs_withTimeout() {
 120         ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
 121         defer cancel()
 122
 123         client, _ := NewEnvClient()
 124         reader, err := client.ServiceLogs(ctx, "service_id", types.ContainerLogsOptions{})
 125         if err != nil {
 126                 log.Fatal(err)
 127         }
 128
 129         _, err = io.Copy(os.Stdout, reader)
 130         if err != nil && err != io.EOF {
 131                 log.Fatal(err)
 132         }
 133 }