unikernel/duniverse/ocaml-ipaddr/lib_test/test_macaddr.ml

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+(*
+ * Copyright (c) 2013-2014 David Sheets <sheets@alum.mit.edu>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ *)
+
+open OUnit
+open Macaddr
+
+let test_string_rt () =
+  let addrs = [ ("ca:fe:ba:be:ee:ee", ':'); ("ca-fe-ba-be-ee-ee", '-') ] in
+  List.iter
+    (fun (addr, sep) ->
+      let os = of_string_exn addr in
+      let ts = to_string ~sep os in
+      assert_equal ~msg:(addr ^ " <> " ^ ts) ts addr;
+      let os = Macaddr_sexp.(t_of_sexp (sexp_of_t os)) in
+      let ts = to_string ~sep os in
+      assert_equal ~msg:(addr ^ " <> " ^ ts) ts addr)
+    addrs
+
+let assert_result_failure ~msg a =
+  match a with Ok _ -> assert_failure msg | Error (`Msg _) -> ()
+
+let test_string_rt_bad () =
+  let addrs =
+    [
+      "ca:fe:ba:be:ee:e";
+      "ca:fe:ba:be:ee:eee";
+      "ca:fe:ba:be:eeee";
+      "ca:fe:ba:be:ee::ee";
+      "ca:fe:ba:be:e:eee";
+      "ca:fe:ba:be:ee-ee";
+    ]
+  in
+  List.iter (fun addr -> assert_result_failure ~msg:addr (of_string addr)) addrs
+
+let test_bytes_rt () =
+  let addr = "\254\099\003\128\000\000" in
+  assert_equal ~msg:(String.escaped addr) (to_octets (of_octets_exn addr)) addr
+
+let test_bytes_rt_bad () =
+  let addrs = [ "\254\099\003\128\000"; "\254\099\003\128\000\000\233" ] in
+  List.iter
+    (fun addr ->
+      assert_result_failure ~msg:(String.escaped addr) (of_octets addr))
+    addrs
+
+let test_cstruct_rt () =
+  let open Macaddr_cstruct in
+  let addr = "\254\099\003\128\000\000" in
+  assert_equal ~msg:(String.escaped addr)
+    (Cstruct.to_string (to_cstruct (of_cstruct_exn (Cstruct.of_string addr))))
+    addr
+
+let error s = (s, Parse_error ("MAC is exactly 6 bytes", s))
+
+let test_cstruct_rt_bad () =
+  let open Macaddr_cstruct in
+  let addrs =
+    [ error "\254\099\003\128\000"; error "\254\099\003\128\000\000\233" ]
+  in
+  List.iter
+    (fun (addr, exn) ->
+      assert_raises ~msg:(String.escaped addr) exn (fun () ->
+          of_cstruct_exn (Cstruct.of_string addr)))
+    addrs
+
+let test_make_local () =
+  let () = Random.self_init () in
+  let bytegen i = if i = 0 then 253 else 255 - i in
+  let local_addr = make_local bytegen in
+  assert_equal ~msg:"is_local" (is_local local_addr) true;
+  assert_equal ~msg:"is_unicast" (is_unicast local_addr) true;
+  assert_equal ~msg:"localize" (to_octets local_addr).[0] (Char.chr 254);
+  for i = 1 to 5 do
+    assert_equal
+      ~msg:("addr.[" ^ string_of_int i ^ "]")
+      (to_octets local_addr).[i]
+      (Char.chr (bytegen i))
+  done;
+  assert_equal ~msg:"get_oui" (get_oui local_addr)
+    ((254 lsl 16) + (254 lsl 8) + 253)
+
+let suite =
+  "Test"
+  >::: [
+         "string_rt" >:: test_string_rt;
+         "string_rt_bad" >:: test_string_rt_bad;
+         "bytes_rt" >:: test_bytes_rt;
+         "bytes_rt_bad" >:: test_bytes_rt_bad;
+         "cstruct_rt" >:: test_cstruct_rt;
+         "cstruct_rt_bad" >:: test_cstruct_rt_bad;
+         "make_local" >:: test_make_local;
+       ]
+;;
+
+run_test_tt_main suite