// only have second precision
                    // there seems to be some random factor (adding one second)
                    int diff = Math.abs((int) ( ( time / 1000 ) - ( f.lastModified() / 1000 ) ));
                    Assert.assertTrue("Have set time correctly", diff < 2);
                }
                else {

        if ( f != null ) {
            f.delete();
        }
    }


    protected String makeRandomName () {
        return "jcifs-test-" + Math.abs(this.rand.nextLong());
    }


    protected String makeRandomDirectoryName () {
        return makeRandomName() + "/";
    }