* @see <a
 *      href="https://en.wikipedia.org/wiki/Octet_%28computing%29">https://en.wikipedia.org/wiki/Octet_(computing)</a>
 */
public class FileSizeFormat {
    public enum ScaleUnit {
        BYTE {
            @Override
            public long bytes() {
                return 1L;
            }

            @Override
            public String symbol() {

    void testNegativeProgressedSize() {
        FileSizeFormat format = new FileSizeFormat();

        long negativeProgressedSize = -100L;
        assertThrows(IllegalArgumentException.class, () -> format.formatProgress(negativeProgressedSize, 10L));
    }

    @Test
    void testNegativeProgressedSizeBiggerThanSize() {
        FileSizeFormat format = new FileSizeFormat();

        TransferResource resource = event.getResource();
        long contentLength = event.getTransferredBytes();
        FileSizeFormat format = new FileSizeFormat();

        MessageBuilder message = messageBuilderFactory.builder();
        message.append(action).style(STYLE).append(' ').append(direction).append(' ');

        TransferResource resource = event.getResource();
        long contentLength = event.getTransferredBytes();
        FileSizeFormat format = new FileSizeFormat();

        StringBuilder message = new StringBuilder();
        message.append(action).append(' ').append(direction).append(' ').append(resource.getRepositoryId());
        message.append(": ");

public class ConsoleMavenTransferListener extends AbstractMavenTransferListener {

    private final Map<TransferResourceIdentifier, TransferResourceAndSize> transfers = new LinkedHashMap<>();
    private final FileSizeFormat format = new FileSizeFormat(); // use in a synchronized fashion
    private final StringBuilder buffer = new StringBuilder(128); // use in a synchronized fashion

    private final boolean printResourceNames;
    private int lastLength;