Source file Unit_SPcre.ml

(*
   Unit tests for SPcre
*)

let test_match_limit_ok () =
  let rex = SPcre.regexp "(a+)+$" in
  match SPcre.pmatch ~rex "aaaaaaaaaaaaaaaaa!" with
  | Ok _ -> ()
  | Error Pcre.MatchLimit ->
      Alcotest.fail "should not have failed with error MatchLimit"
  | Error _ -> Alcotest.fail "unexpected error"

let test_match_limit_fail () =
  let rex = SPcre.regexp "(a+)+$" in
  match SPcre.pmatch ~rex "aaaaaaaaaaaaaaaaaa!" with
  | Ok _ -> Alcotest.fail "should have failed with error MatchLimit"
  | Error Pcre.MatchLimit -> ()
  | Error _ -> Alcotest.fail "unexpected error"

let test_register_exception_printer () =
  (* This is a little dirty since we can't undo it. *)
  SPcre.register_exception_printer ();

  let msg =
    try
      ignore (SPcre.regexp "???");
      Alcotest.fail "should have failed to compile the regexp"
    with
    | e -> Printexc.to_string e
  in
  Alcotest.(check string)
    "equal" "Pcre.Error(Pcre.BadPattern(\"nothing to repeat\", pos=0))" msg

let tests =
  Testutil.pack_tests "pcre settings"
    [
      ("match limit ok", test_match_limit_ok);
      ("match limit fail", test_match_limit_fail);
      ("exception printer", test_register_exception_printer);
    ]