package client import ( "bytes" "encoding/json" "fmt" "io" "io/ioutil" "net/http" "strings" "testing" "golang.org/x/net/context" "github.com/docker/docker/api/types" "github.com/docker/docker/api/types/events" "github.com/docker/docker/api/types/filters" ) func TestEventsErrorInOptions(t *testing.T) { errorCases := []struct { options types.EventsOptions expectedError string }{ { options: types.EventsOptions{ Since: "2006-01-02TZ", }, expectedError: `parsing time "2006-01-02TZ"`, }, { options: types.EventsOptions{ Until: "2006-01-02TZ", }, expectedError: `parsing time "2006-01-02TZ"`, }, } for _, e := range errorCases { client := &Client{ client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), } _, errs := client.Events(context.Background(), e.options) err := <-errs if err == nil || !strings.Contains(err.Error(), e.expectedError) { t.Fatalf("expected an error %q, got %v", e.expectedError, err) } } } func TestEventsErrorFromServer(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), } _, errs := client.Events(context.Background(), types.EventsOptions{}) err := <-errs if err == nil || err.Error() != "Error response from daemon: Server error" { t.Fatalf("expected a Server Error, got %v", err) } } func TestEvents(t *testing.T) { expectedURL := "/events" filters := filters.NewArgs() filters.Add("type", events.ContainerEventType) expectedFiltersJSON := fmt.Sprintf(`{"type":{"%s":true}}`, events.ContainerEventType) eventsCases := []struct { options types.EventsOptions events []events.Message expectedEvents map[string]bool expectedQueryParams map[string]string }{ { options: types.EventsOptions{ Filters: filters, }, expectedQueryParams: map[string]string{ "filters": expectedFiltersJSON, }, events: []events.Message{}, expectedEvents: make(map[string]bool), }, { options: types.EventsOptions{ Filters: filters, }, expectedQueryParams: map[string]string{ "filters": expectedFiltersJSON, }, events: []events.Message{ { Type: "container", ID: "1", Action: "create", }, { Type: "container", ID: "2", Action: "die", }, { Type: "container", ID: "3", Action: "create", }, }, expectedEvents: map[string]bool{ "1": true, "2": true, "3": true, }, }, } for _, eventsCase := range eventsCases { client := &Client{ client: newMockClient(func(req *http.Request) (*http.Response, error) { if !strings.HasPrefix(req.URL.Path, expectedURL) { return nil, fmt.Errorf("Expected URL '%s', got '%s'", expectedURL, req.URL) } query := req.URL.Query() for key, expected := range eventsCase.expectedQueryParams { actual := query.Get(key) if actual != expected { return nil, fmt.Errorf("%s not set in URL query properly. Expected '%s', got %s", key, expected, actual) } } buffer := new(bytes.Buffer) for _, e := range eventsCase.events { b, _ := json.Marshal(e) buffer.Write(b) } return &http.Response{ StatusCode: http.StatusOK, Body: ioutil.NopCloser(buffer), }, nil }), } messages, errs := client.Events(context.Background(), eventsCase.options) loop: for { select { case err := <-errs: if err != nil && err != io.EOF { t.Fatal(err) } break loop case e := <-messages: _, ok := eventsCase.expectedEvents[e.ID] if !ok { t.Fatalf("event received not expected with action %s & id %s", e.Action, e.ID) } } } } }