@Test
public void testGetPkgPrefixesForCoarseMatch2() {

    // pkgSectionSize <= 0 --> result = CLASS_NAMES
    assertThat(XLogUtils.getPkgPrefixesForCoarseMatch(CLASS_NAMES, -1).size(),
            is(CLASS_NAMES.size()));
    assertThat(XLogUtils.getPkgPrefixesForCoarseMatch(CLASS_NAMES, 0).size(),
            is(CLASS_NAMES.size()));
}