(*

 * ExtLib Testing Suite

 * Copyright (C) 2004, 2007 Janne Hellsten

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version,

 * with the special exception on linking described in file LICENSE.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *)

(* test_unzip_bug1 test case was contributed by Robert Atkey on

   ocaml-lib-devel@lists.sourceforge.net on Nov 26, 2007.  

   Thanks Rob! *)

let test_unzip_bug1 () =

  let test data =

    let input    = IO.input_string data in

    let unzipped = Unzip.inflate input in

    try

      let str      = IO.read_all unzipped in

      assert (str = "XY")

    with Unzip.Error Unzip.Invalid_data -> assert false

  in

  (* this is "XY" compressed by zlib at level 9 *)

  test "\x78\xda\x8b\x88\x04\x00\x01\x0b\x00\xb2";

  (* this is "XY" compressed by zlib at level 0 *)

  test "\x78\x01\x01\x02\x00\xfd\xff\x58\x59\x01\x0b\x00\xb2"

(* Some zlib compressed strings with various compression levels.  See

   extlib-test/util/zlib-test/gen_ml.sh for more info.  This is not

   very exhaustive but is still better than nothing.  The generation

   script should be pretty easy to extend to cover longer strings. *)

let inputs = 

  [("a", "\x78\x01\x4b\x04\x00\x00\x62\x00\x62");

   ("a", "\x78\x5e\x4b\x04\x00\x00\x62\x00\x62");

   ("a", "\x78\x9c\x4b\x04\x00\x00\x62\x00\x62");

   ("a", "\x78\xda\x4b\x04\x00\x00\x62\x00\x62");

   ("b", "\x78\x01\x4b\x02\x00\x00\x63\x00\x63");

   ("b", "\x78\x5e\x4b\x02\x00\x00\x63\x00\x63");

   ("b", "\x78\x9c\x4b\x02\x00\x00\x63\x00\x63");

   ("b", "\x78\xda\x4b\x02\x00\x00\x63\x00\x63");

   ("c", "\x78\x01\x4b\x06\x00\x00\x64\x00\x64");

   ("c", "\x78\x5e\x4b\x06\x00\x00\x64\x00\x64");

   ("c", "\x78\x9c\x4b\x06\x00\x00\x64\x00\x64");

   ("c", "\x78\xda\x4b\x06\x00\x00\x64\x00\x64");

   ("aa", "\x78\x01\x4b\x4c\x04\x00\x01\x25\x00\xc3");

   ("aa", "\x78\x5e\x4b\x4c\x04\x00\x01\x25\x00\xc3");

   ("aa", "\x78\x9c\x4b\x4c\x04\x00\x01\x25\x00\xc3");

   ("aa", "\x78\xda\x4b\x4c\x04\x00\x01\x25\x00\xc3");

   ("aaa", "\x78\x01\x4b\x4c\x4c\x04\x00\x02\x49\x01\x24");

   ("aaa", "\x78\x5e\x4b\x4c\x4c\x04\x00\x02\x49\x01\x24");

   ("aaa", "\x78\x9c\x4b\x4c\x4c\x04\x00\x02\x49\x01\x24");

   ("aaa", "\x78\xda\x4b\x4c\x4c\x04\x00\x02\x49\x01\x24");

   ("aaaa", "\x78\x01\x4b\x4c\x4c\x4c\x04\x00\x03\xce\x01\x85");

   ("aaaa", "\x78\x5e\x4b\x4c\x4c\x4c\x04\x00\x03\xce\x01\x85");

   ("aaaa", "\x78\x9c\x4b\x4c\x4c\x4c\x04\x00\x03\xce\x01\x85");

   ("aaaa", "\x78\xda\x4b\x4c\x4c\x4c\x04\x00\x03\xce\x01\x85");

   ("foobar", "\x78\x01\x4b\xcb\xcf\x4f\x4a\x2c\x02\x00\x08\xab\x02\x7a");

   ("foobar", "\x78\x5e\x4b\xcb\xcf\x4f\x4a\x2c\x02\x00\x08\xab\x02\x7a");

   ("foobar", "\x78\x9c\x4b\xcb\xcf\x4f\x4a\x2c\x02\x00\x08\xab\x02\x7a");

   ("foobar", "\x78\xda\x4b\xcb\xcf\x4f\x4a\x2c\x02\x00\x08\xab\x02\x7a");

   ("012345678", "\x78\x01\x33\x30\x34\x32\x36\x31\x35\x33\xb7\x00\x00\x08\xf1\x01\xd5");

   ("012345678", "\x78\x5e\x33\x30\x34\x32\x36\x31\x35\x33\xb7\x00\x00\x08\xf1\x01\xd5");

   ("012345678", "\x78\x9c\x33\x30\x34\x32\x36\x31\x35\x33\xb7\x00\x00\x08\xf1\x01\xd5");

   ("012345678", "\x78\xda\x33\x30\x34\x32\x36\x31\x35\x33\xb7\x00\x00\x08\xf1\x01\xd5");

   ("00000000", "\x78\x01\x33\x30\x80\x00\x00\x06\xc8\x01\x81");

   ("00000000", "\x78\x5e\x33\x30\x80\x00\x00\x06\xc8\x01\x81");

   ("00000000", "\x78\x9c\x33\x30\x80\x00\x00\x06\xc8\x01\x81");

   ("00000000", "\x78\xda\x33\x30\x80\x00\x00\x06\xc8\x01\x81");

   ("aaaaaaaaaa", "\x78\x01\x4b\x4c\x84\x01\x00\x14\xe1\x03\xcb");

   ("aaaaaaaaaa", "\x78\x5e\x4b\x4c\x84\x01\x00\x14\xe1\x03\xcb");

   ("aaaaaaaaaa", "\x78\x9c\x4b\x4c\x84\x01\x00\x14\xe1\x03\xcb");

   ("aaaaaaaaaa", "\x78\xda\x4b\x4c\x84\x01\x00\x14\xe1\x03\xcb");

   ("-------------------------aaaaaaaaa------------------", "\x78\x01\xd3\xd5\xc5\x01\x12\x61\x00\x53\x1e\x00\x1c\x89\x0a\xf9");

   ("-------------------------aaaaaaaaa------------------", "\x78\x5e\xd3\xd5\xc5\x01\x12\x61\x00\x53\x1e\x00\x1c\x89\x0a\xf9");

   ("-------------------------aaaaaaaaa------------------", "\x78\x5e\xd3\xd5\xc5\x01\x12\x61\x00\x5d\x42\x57\x17\x00\x1c\x89\x0a\xf9");

   ("-------------------------aaaaaaaaa------------------", "\x78\x5e\xd3\xd5\xc5\x01\x12\x61\x00\x53\x0a\x00\x1c\x89\x0a\xf9");

   ("-------------------------aaaaaaaaa------------------", "\x78\x9c\xd3\xd5\xc5\x01\x12\x61\x00\x53\x0a\x00\x1c\x89\x0a\xf9");

   ("-------------------------aaaaaaaaa------------------", "\x78\xda\xd3\xd5\xc5\x01\x12\x61\x00\x53\x0a\x00\x1c\x89\x0a\xf9")]

let test_unzip_gen_inputs () =

  let test orig data =

    let input    = IO.input_string data in

    let unzipped = Unzip.inflate input in

    try

      let str      = IO.read_all unzipped in

      assert (str = orig)

    with Unzip.Error Unzip.Invalid_data -> assert false

  in

  List.iter

    (fun (orig,compressed) ->

       test orig compressed)

    inputs

let () = 

  Util.register "Unzip" [

    "bug1", test_unzip_bug1;

    "gen_inputs", test_unzip_gen_inputs;

  ]