// Special-handle ErrNone
	if code == ErrNone {
		return "ErrNone"
	}

	return fmt.Sprintf("%s (%s)", errorCodes[code].Code, errorCodes[code].Description)
}

func TestDoesPolicySignatureMatch(t *testing.T) {
	_, fsDir, err := prepareFS(context.Background())
	if err != nil {
		t.Fatal(err)
	}
	defer removeRoots([]string{fsDir})

	credentialTemplate := "%s/%s/%s/s3/aws4_request"