public String getProgress(final boolean running, final long size, final long transferred) {
        return this.getProgress(System.currentTimeMillis(), running, size, transferred);
    }
@Test
    public void testStopped() {
        final long start = System.currentTimeMillis();
        Speedometer m = new Speedometer(start, true);
        assertEquals("0 B of 1.0 MB", m.getProgress(true, 1000000L, 0L));
        assertEquals("500.0 KB of 1.0 MB", m.getProgress(false, 1000000L, 1000000L / 2));
    }