package client // import "github.com/docker/docker/client" import ( "bytes" "context" "fmt" "io/ioutil" "net/http" "strings" "testing" "github.com/docker/docker/api/types/swarm" ) func TestSwarmUpdateError(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), } err := client.SwarmUpdate(context.Background(), swarm.Version{}, swarm.Spec{}, swarm.UpdateFlags{}) if err == nil || err.Error() != "Error response from daemon: Server error" { t.Fatalf("expected a Server Error, got %v", err) } } func TestSwarmUpdate(t *testing.T) { expectedURL := "/swarm/update" 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) } if req.Method != "POST" { return nil, fmt.Errorf("expected POST method, got %s", req.Method) } return &http.Response{ StatusCode: http.StatusOK, Body: ioutil.NopCloser(bytes.NewReader([]byte(""))), }, nil }), } err := client.SwarmUpdate(context.Background(), swarm.Version{}, swarm.Spec{}, swarm.UpdateFlags{}) if err != nil { t.Fatal(err) } }