void () { assumeMacOS(); File root = new File("/"); CaseSensitivity rootCs = FileSystemUtil.readParentCaseSensitivity(root); assertNotEquals(CaseSensitivity.UNKNOWN, rootCs); File child = new File("/Users"); assertEquals(root, child.getParentFile()); assertEquals(rootCs, FileSystemUtil.readParentCaseSensitivity(child)); }