assertEquals("1.0 MB", format.formatProgress(1000L * 1000L, -1L));
        assertEquals("1.0 GB", format.formatProgress(1000L * 1000L * 1000L, -1L));
    }

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

        assertEquals("0 B", format.formatProgress(0L, 0L));
    }

    @Test
    void testProgressedSizeWithSize() {