package client import ( "bytes" "fmt" "io/ioutil" "net/http" "strings" "testing" "golang.org/x/net/context" "github.com/docker/docker/api/types" "github.com/docker/docker/api/types/swarm" ) func TestServiceUpdateError(t *testing.T) { client := &Client{ transport: newMockClient(nil, errorMock(http.StatusInternalServerError, "Server error")), } err := client.ServiceUpdate(context.Background(), "service_id", swarm.Version{}, swarm.ServiceSpec{}, types.ServiceUpdateOptions{}) if err == nil || err.Error() != "Error response from daemon: Server error" { t.Fatalf("expected a Server Error, got %v", err) } } func TestServiceUpdate(t *testing.T) { expectedURL := "/services/service_id/update" updateCases := []struct { swarmVersion swarm.Version expectedVersion string }{ { expectedVersion: "0", }, { swarmVersion: swarm.Version{ Index: 0, }, expectedVersion: "0", }, { swarmVersion: swarm.Version{ Index: 10, }, expectedVersion: "10", }, } for _, updateCase := range updateCases { client := &Client{ transport: newMockClient(nil, 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) } version := req.URL.Query().Get("version") if version != updateCase.expectedVersion { return nil, fmt.Errorf("version not set in URL query properly, expected '%s', got %s", updateCase.expectedVersion, version) } return &http.Response{ StatusCode: http.StatusOK, Body: ioutil.NopCloser(bytes.NewReader([]byte("body"))), }, nil }), } err := client.ServiceUpdate(context.Background(), "service_id", updateCase.swarmVersion, swarm.ServiceSpec{}, types.ServiceUpdateOptions{}) if err != nil { t.Fatal(err) } } }