package client import ( "bytes" "encoding/json" "fmt" "io/ioutil" "net/http" "strings" "testing" "github.com/docker/docker/api/types" "github.com/docker/docker/api/types/container" "golang.org/x/net/context" ) func TestContainerUpdateError(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), } _, err := client.ContainerUpdate(context.Background(), "nothing", container.UpdateConfig{}) if err == nil || err.Error() != "Error response from daemon: Server error" { t.Fatalf("expected a Server Error, got %v", err) } } func TestContainerUpdate(t *testing.T) { expectedURL := "/containers/container_id/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) } b, err := json.Marshal(types.ContainerUpdateResponse{}) if err != nil { return nil, err } return &http.Response{ StatusCode: http.StatusOK, Body: ioutil.NopCloser(bytes.NewReader(b)), }, nil }), } _, err := client.ContainerUpdate(context.Background(), "container_id", container.UpdateConfig{ Resources: container.Resources{ CPUPeriod: 1, }, RestartPolicy: container.RestartPolicy{ Name: "always", }, }) if err != nil { t.Fatal(err) } }