package client import ( "bytes" "encoding/json" "fmt" "io/ioutil" "net/http" "reflect" "strings" "testing" "github.com/docker/docker/api/types" "golang.org/x/net/context" ) func TestContainerTopError(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), } _, err := client.ContainerTop(context.Background(), "nothing", []string{}) if err == nil || err.Error() != "Error response from daemon: Server error" { t.Fatalf("expected a Server Error, got %v", err) } } func TestContainerTop(t *testing.T) { expectedURL := "/containers/container_id/top" expectedProcesses := [][]string{ {"p1", "p2"}, {"p3"}, } expectedTitles := []string{"title1", "title2"} 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() args := query.Get("ps_args") if args != "arg1 arg2" { return nil, fmt.Errorf("args not set in URL query properly. Expected 'arg1 arg2', got %v", args) } b, err := json.Marshal(types.ContainerProcessList{ Processes: [][]string{ {"p1", "p2"}, {"p3"}, }, Titles: []string{"title1", "title2"}, }) if err != nil { return nil, err } return &http.Response{ StatusCode: http.StatusOK, Body: ioutil.NopCloser(bytes.NewReader(b)), }, nil }), } processList, err := client.ContainerTop(context.Background(), "container_id", []string{"arg1", "arg2"}) if err != nil { t.Fatal(err) } if !reflect.DeepEqual(expectedProcesses, processList.Processes) { t.Fatalf("Processes: expected %v, got %v", expectedProcesses, processList.Processes) } if !reflect.DeepEqual(expectedTitles, processList.Titles) { t.Fatalf("Titles: expected %v, got %v", expectedTitles, processList.Titles) } }