@Test
public void testHostsFileReader() throws Exception {

  FileWriter efw = new FileWriter(excludesFile);
  FileWriter ifw = new FileWriter(includesFile);
  efw.write("#DFS-Hosts-excluded\n");
  efw.write("somehost1\n");
  efw.write("#This-is-comment\n");
  efw.write("somehost2\n");
  efw.write("somehost3 # host3\n");
  efw.write("somehost4\n");
  efw.write("somehost4 somehost5\n");
  efw.close();
  ifw.write("#Hosts-in-DFS\n");
  ifw.write("somehost1\n");
  ifw.write("somehost2\n");
  ifw.write("somehost3\n");
  ifw.write("#This-is-comment\n");
  ifw.write("somehost4 # host4\n");
  ifw.write("somehost4 somehost5\n");
  ifw.close();
  HostsFileReader hfp = new HostsFileReader(includesFile, excludesFile);
  int includesLen = hfp.getHosts().size();
  int excludesLen = hfp.getExcludedHosts().size();
  assertEquals(5, includesLen);
  assertEquals(5, excludesLen);
  assertTrue(hfp.getHosts().contains("somehost5"));
  assertFalse(hfp.getHosts().contains("host3"));
  assertTrue(hfp.getExcludedHosts().contains("somehost5"));
  assertFalse(hfp.getExcludedHosts().contains("host4"));
}