@Test
  public void baseDirectoryShouldBeTokenisedInDescriptor() {
    unit.setLocation(PROJECT_PATH + "/a-path/to/checkstyle.xml");

    assertThat(
        unit.getDescriptor(),
        is(equalTo("FILE:$PROJECT_DIR$/a-path/to/checkstyle.xml:aDescription")));
  }
 @Test
 public void descriptorShouldContainsTypeLocationAndDescription() {
   assertThat(unit.getDescriptor(), is(equalTo("FILE:aLocation:aDescription")));
 }