github.com/ssdev-go/moby@v17.12.1-ce-rc2+incompatible/client/service_logs_test.go (about)

     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  }