@Test
void canGetAllImmediateFoldersInResourcePackage() {

    String sep = File.separator;
    Set<String> set = ResourceFileManager.getResourceFolders("data/biboule/images");
    assert (set.iterator().next().equals(String.format("data%1$sbiboule%1$simages", sep)));
    set = ResourceFileManager.getResourceFolders("data/common/default/images");
    assert (set.iterator().next().equals(String.format("data%1$scommon%1$sdefault%1$simages", sep)));
    set = ResourceFileManager.getResourceFolders("data");
    assert (set.contains(String.format("data%1$scommon%1$sdefault%1$simages", sep)));
    assert (set.contains(String.format("data%1$sbiboule%1$simages", sep)));
}