package client // import "github.com/docker/docker/client" import ( "bytes" "context" "encoding/json" "fmt" "io/ioutil" "net/http" "strings" "testing" "github.com/docker/docker/api/types" "github.com/docker/docker/errdefs" ) func TestDiskUsageError(t *testing.T) { client := &Client{ client: newMockClient(errorMock(http.StatusInternalServerError, "Server error")), } _, err := client.DiskUsage(context.Background()) if !errdefs.IsSystem(err) { t.Fatalf("expected a Server Error, got %[1]T: %[1]v", err) } } func TestDiskUsage(t *testing.T) { expectedURL := "/system/df" 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) } du := types.DiskUsage{ LayersSize: int64(100), Images: nil, Containers: nil, Volumes: nil, } b, err := json.Marshal(du) if err != nil { return nil, err } return &http.Response{ StatusCode: http.StatusOK, Body: ioutil.NopCloser(bytes.NewReader(b)), }, nil }), } if _, err := client.DiskUsage(context.Background()); err != nil { t.Fatal(err) } }