github.com/adityamillind98/moby@v23.0.0-rc.4+incompatible/client/events_test.go (about)

     1  package client // import "github.com/docker/docker/client"
     2  
     3  import (
     4  	"bytes"
     5  	"context"
     6  	"encoding/json"
     7  	"fmt"
     8  	"io"
     9  	"net/http"
    10  	"strings"
    11  	"testing"
    12  
    13  	"github.com/docker/docker/api/types"
    14  	"github.com/docker/docker/api/types/events"
    15  	"github.com/docker/docker/api/types/filters"
    16  	"github.com/docker/docker/errdefs"
    17  )
    18  
    19  func TestEventsErrorInOptions(t *testing.T) {
    20  	errorCases := []struct {
    21  		options       types.EventsOptions
    22  		expectedError string
    23  	}{
    24  		{
    25  			options: types.EventsOptions{
    26  				Since: "2006-01-02TZ",
    27  			},
    28  			expectedError: `parsing time "2006-01-02TZ"`,
    29  		},
    30  		{
    31  			options: types.EventsOptions{
    32  				Until: "2006-01-02TZ",
    33  			},
    34  			expectedError: `parsing time "2006-01-02TZ"`,
    35  		},
    36  	}
    37  	for _, e := range errorCases {
    38  		client := &Client{
    39  			client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
    40  		}
    41  		_, errs := client.Events(context.Background(), e.options)
    42  		err := <-errs
    43  		if err == nil || !strings.Contains(err.Error(), e.expectedError) {
    44  			t.Fatalf("expected an error %q, got %v", e.expectedError, err)
    45  		}
    46  	}
    47  }
    48  
    49  func TestEventsErrorFromServer(t *testing.T) {
    50  	client := &Client{
    51  		client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")),
    52  	}
    53  	_, errs := client.Events(context.Background(), types.EventsOptions{})
    54  	err := <-errs
    55  	if !errdefs.IsSystem(err) {
    56  		t.Fatalf("expected a Server Error, got %[1]T: %[1]v", err)
    57  	}
    58  }
    59  
    60  func TestEvents(t *testing.T) {
    61  	expectedURL := "/events"
    62  
    63  	filters := filters.NewArgs()
    64  	filters.Add("type", events.ContainerEventType)
    65  	expectedFiltersJSON := fmt.Sprintf(`{"type":{"%s":true}}`, events.ContainerEventType)
    66  
    67  	eventsCases := []struct {
    68  		options             types.EventsOptions
    69  		events              []events.Message
    70  		expectedEvents      map[string]bool
    71  		expectedQueryParams map[string]string
    72  	}{
    73  		{
    74  			options: types.EventsOptions{
    75  				Filters: filters,
    76  			},
    77  			expectedQueryParams: map[string]string{
    78  				"filters": expectedFiltersJSON,
    79  			},
    80  			events:         []events.Message{},
    81  			expectedEvents: make(map[string]bool),
    82  		},
    83  		{
    84  			options: types.EventsOptions{
    85  				Filters: filters,
    86  			},
    87  			expectedQueryParams: map[string]string{
    88  				"filters": expectedFiltersJSON,
    89  			},
    90  			events: []events.Message{
    91  				{
    92  					Type:   events.BuilderEventType,
    93  					ID:     "1",
    94  					Action: "create",
    95  				},
    96  				{
    97  					Type:   events.BuilderEventType,
    98  					ID:     "2",
    99  					Action: "die",
   100  				},
   101  				{
   102  					Type:   events.BuilderEventType,
   103  					ID:     "3",
   104  					Action: "create",
   105  				},
   106  			},
   107  			expectedEvents: map[string]bool{
   108  				"1": true,
   109  				"2": true,
   110  				"3": true,
   111  			},
   112  		},
   113  	}
   114  
   115  	for _, eventsCase := range eventsCases {
   116  		client := &Client{
   117  			client: newMockClient(func(req *http.Request) (*http.Response, error) {
   118  				if !strings.HasPrefix(req.URL.Path, expectedURL) {
   119  					return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL)
   120  				}
   121  				query := req.URL.Query()
   122  
   123  				for key, expected := range eventsCase.expectedQueryParams {
   124  					actual := query.Get(key)
   125  					if actual != expected {
   126  						return nil, fmt.Errorf("%s not set in URL query properly. Expected '%s', got %s", key, expected, actual)
   127  					}
   128  				}
   129  
   130  				buffer := new(bytes.Buffer)
   131  
   132  				for _, e := range eventsCase.events {
   133  					b, _ := json.Marshal(e)
   134  					buffer.Write(b)
   135  				}
   136  
   137  				return &http.Response{
   138  					StatusCode: http.StatusOK,
   139  					Body:       io.NopCloser(buffer),
   140  				}, nil
   141  			}),
   142  		}
   143  
   144  		messages, errs := client.Events(context.Background(), eventsCase.options)
   145  
   146  	loop:
   147  		for {
   148  			select {
   149  			case err := <-errs:
   150  				if err != nil && err != io.EOF {
   151  					t.Fatal(err)
   152  				}
   153  
   154  				break loop
   155  			case e := <-messages:
   156  				_, ok := eventsCase.expectedEvents[e.ID]
   157  				if !ok {
   158  					t.Fatalf("event received not expected with action %s & id %s", e.Action, e.ID)
   159  				}
   160  			}
   161  		}
   162  	}
   163  }