String shortenPath = shortenPath(f.getFilePath());
        File signatureFile = f.getSignatureFile();
        if (signatureFile != null) {
            return shortenPath + " (signature: " + shortenPath(signatureFile) + ")";
        }
        return shortenPath;
    }

    // Shortens the path for display the user
    private String shortenPath(File file) {
        Path path = file.toPath();

    }

    @Override
    File outputDirFor(String testId) {
        String fileSafeName = OutputDirSelectorUtil.fileSafeNameFor(testId)
        return new File(baseOutputDir, shortenPath(fileSafeName, 40))
    }

    private static String shortenPath(String longName, int expectedMaxLength) {
        if (longName.length() <= expectedMaxLength) {
            return longName
        } else {

        }
        if (prefix == null) {
            String safeMethodName = shortenPath(methodName.replaceAll("[^\\w]", "_"), 16);
            prefix = String.format("%s/%s", className, safeMethodName);
        }
    }

    /*
     Shorten a long name to at most {expectedMaxLength}, replace middle characters with ".".
     */
    private String shortenPath(String longName, int expectedMaxLength) {