// if there was an error writing, syncing, or closing, delete the temporary file and return the error
		if retErr != nil {
			if err := fs.Remove(tmpPath); err != nil {
				retErr = fmt.Errorf("attempted to remove temporary file %q after error %v, but failed due to error: %v", tmpPath, retErr, err)
			}
			tmpPath = ""
		}
	}()

	// Name() will be an absolute path when using utilfs.DefaultFS, because os.CreateTemp passes

func TestIsValidUmaskVol(t *testing.T) {
	tmpPath := t.TempDir()
	testCases := []struct {
		volName       string
		expectedUmask int
	}{
		{"is-this-valid", getUmask()},
	}
	testCase := testCases[0]

	// Initialize a new xlStorage layer.
	disk, err := newLocalXLStorage(tmpPath)
	if err != nil {
		t.Fatalf("Initializing xlStorage failed with %s.", err)
	}

				}
			}
		}

		// Clean up the temp file on error.
		if retErr != nil && tmpPath != "" {
			if err := removePath(fs, tmpPath); err != nil {
				retErr = fmt.Errorf("failed to remove the temporary file (%q) after error %v; remove error: %v", tmpPath, retErr, err)
			}
		}
	}()

	// Write data.
	if _, err := tmpFile.Write(data); err != nil {
		return err
	}

func TestArgumentsPositions(t *testing.T) {
	testenv.MustHaveCGO(t)
	testenv.MustHaveExec(t)

	testdata, err := filepath.Abs("testdata")
	if err != nil {
		t.Fatal(err)
	}

	tmpPath := t.TempDir()

	dir := filepath.Join(tmpPath, "src", "testpositions")
	if err := os.MkdirAll(dir, 0755); err != nil {
		t.Fatal(err)
	}

	cmd := exec.Command("go", "tool", "cgo",
		"-srcdir", testdata,
		"-objdir", dir,