+testfileset('add new array', ".$/", [['foo','.'], ''], 2, ".$/foo$/.$/");
+testfileset('replace by array', "$/foo$/.$/", [['foo',''], ''], 3, "foo$/.$/foo$/$/");
+testfileset('partial add', "foo$/$/", [['foo','.'], 'foo'], 1, "foo$/$/.$/");
+
+is(remove_tree($target), 14, 'no unexpected files');