/usr/lib/ocaml/oUnit/oUnitAssert.ml is in libounit-ocaml-dev 2.0.0-2build1.
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(* The OUnit library *)
(* *)
(* Copyright (C) 2002-2008 Maas-Maarten Zeeman. *)
(* Copyright (C) 2010 OCamlCore SARL *)
(* Copyright (C) 2013 Sylvain Le Gall *)
(* *)
(* The package OUnit is copyright by Maas-Maarten Zeeman, OCamlCore SARL *)
(* and Sylvain Le Gall. *)
(* *)
(* Permission is hereby granted, free of charge, to any person obtaining *)
(* a copy of this document and the OUnit software ("the Software"), to *)
(* deal in the Software without restriction, including without limitation *)
(* the rights to use, copy, modify, merge, publish, distribute, *)
(* sublicense, and/or sell copies of the Software, and to permit persons *)
(* to whom the Software is furnished to do so, subject to the following *)
(* conditions: *)
(* *)
(* The above copyright notice and this permission notice shall be *)
(* included in all copies or substantial portions of the Software. *)
(* *)
(* The Software is provided ``as is'', without warranty of any kind, *)
(* express or implied, including but not limited to the warranties of *)
(* merchantability, fitness for a particular purpose and noninfringement. *)
(* In no event shall Maas-Maarten Zeeman be liable for any claim, damages *)
(* or other liability, whether in an action of contract, tort or *)
(* otherwise, arising from, out of or in connection with the Software or *)
(* the use or other dealings in the software. *)
(* *)
(* See LICENSE.txt for details. *)
(**************************************************************************)
open OUnitUtils
open OUnitBracket
open OUnitTest
let skip_if b msg =
if b then
raise (Skip msg)
let todo msg =
raise (Todo msg)
let assert_failure msg =
raise (OUnit_failure msg)
let assert_bool msg b =
if not b then assert_failure msg
let assert_string str =
if not (str = "") then assert_failure str
let assert_equal ?ctxt ?(cmp = ( = )) ?printer ?pp_diff ?msg expected actual =
let get_error_string () =
let res =
buff_format_printf
(fun fmt ->
Format.pp_open_vbox fmt 0;
begin
match msg with
| Some s ->
Format.pp_open_box fmt 0;
Format.pp_print_string fmt s;
Format.pp_close_box fmt ();
Format.pp_print_cut fmt ()
| None ->
()
end;
begin
match printer with
| Some p ->
Format.fprintf fmt
"@[expected: @[%s@]@ but got: @[%s@]@]@,"
(p expected)
(p actual)
| None ->
Format.fprintf fmt "@[not equal@]@,"
end;
begin
match pp_diff with
| Some d ->
Format.fprintf fmt
"@[differences: %a@]@,"
d (expected, actual)
| None ->
()
end;
Format.pp_close_box fmt ())
in
let len =
String.length res
in
if len > 0 && res.[len - 1] = '\n' then
String.sub res 0 (len - 1)
else
res
in
let logf fmt =
match ctxt with
| Some ctxt ->
OUnitLogger.Test.logf ctxt.test_logger `Info fmt
| None ->
Printf.ksprintf ignore fmt
in
begin
match msg with
| Some str ->
logf "%s" str;
| _ ->
()
end;
begin
match printer with
| Some p ->
logf "Expected: %s" (p expected);
logf "Actual: %s" (p actual)
| _ ->
()
end;
if not (cmp expected actual) then
assert_failure (get_error_string ())
let assert_command
?(exit_code=Unix.WEXITED 0)
?(sinput=Stream.of_list [])
?(foutput=ignore)
?(use_stderr=true)
?(backtrace=true)
?chdir
?env
~ctxt
prg args =
OUnitTest.section_ctxt ctxt
(fun ctxt ->
let (fn_out, chn_out) = bracket_tmpfile ctxt in
let cmd_print fmt =
Format.pp_print_string fmt prg;
List.iter (Format.fprintf fmt "@ %s") args
in
(* Start the process *)
let in_write =
Unix.dup (Unix.descr_of_out_channel chn_out)
in
let (out_read, out_write) =
Unix.pipe ()
in
let err =
if use_stderr then
in_write
else
Unix.stderr
in
let args =
Array.of_list (prg :: args)
in
let env =
let param = "OCAMLRUNPARAM" in
let analyse_and_fix env =
let arr = Array.copy env in
let fixed = ref false in
let new_var = ref "" in
for i = 0 to (Array.length arr) - 1 do
let really_starts, current_value =
OUnitUtils.start_substr ~prefix:(param^"=") arr.(i)
in
if really_starts then begin
(* Rewrite the params. *)
if not (String.contains current_value 'b') then begin
arr.(i) <- param^"="^current_value^"b"
end;
new_var := arr.(i);
fixed := true
end
done;
if !fixed then
arr
else
Array.append arr [|param^"=b"|]
in
if backtrace then begin
(* Analyse of the provided environment. *)
match env with
| Some env ->
Some (analyse_and_fix env)
| None ->
Some (analyse_and_fix (Unix.environment ()))
end else begin
env
end
in
let command_chdir, in_chdir =
match chdir with
| Some dn ->
dn,
fun f ->
with_bracket ctxt (bracket_chdir dn)
(fun () _ -> f ())
| None ->
Sys.getcwd (), fun f -> f ()
in
let pid =
OUnitLogger.Test.logf ctxt.test_logger `Info "%s"
(buff_format_printf
(fun fmt ->
Format.fprintf fmt "Starting command '%t'." cmd_print));
OUnitLogger.Test.logf ctxt.test_logger `Info "Working directory: %S"
command_chdir;
OUnitLogger.Test.logf ctxt.test_logger `Info "Environment: ";
Array.iter
(fun v ->
OUnitLogger.Test.logf ctxt.test_logger `Info "%s" v)
(match env with
| Some e -> e
| None -> Unix.environment ());
Unix.set_close_on_exec out_write;
match env with
| Some e ->
in_chdir
(fun () ->
Unix.create_process_env prg args e out_read in_write err)
| None ->
in_chdir
(fun () ->
Unix.create_process prg args out_read in_write err)
in
let () =
Unix.close out_read;
Unix.close in_write
in
let () =
(* Dump sinput into the process stdin *)
let buff = " " in
Stream.iter
(fun c ->
let _i : int =
buff.[0] <- c;
Unix.write out_write buff 0 1
in
())
sinput;
Unix.close out_write
in
let _, real_exit_code =
let rec wait_intr () =
try
Unix.waitpid [] pid
with Unix.Unix_error (Unix.EINTR, _, _) ->
wait_intr ()
in
wait_intr ()
in
(* Dump process output to stderr *)
begin
let chn = open_in fn_out in
let buff = String.make 4096 'X' in
let len = ref (-1) in
while !len <> 0 do
len := input chn buff 0 (String.length buff);
OUnitLogger.Test.raw_printf
ctxt.test_logger "%s" (String.sub buff 0 !len);
done;
close_in chn
end;
(* Check process status *)
assert_equal
~msg:(buff_format_printf
(fun fmt ->
Format.fprintf fmt
"@[Exit status of command '%t'@]" cmd_print))
~printer:string_of_process_status
exit_code
real_exit_code;
begin
let chn = open_in fn_out in
try
foutput (Stream.of_channel chn)
with e ->
close_in chn;
raise e
end)
let raises f =
try
f ();
None
with e ->
Some e
let assert_raises ?msg exn (f: unit -> 'a) =
let pexn =
Printexc.to_string
in
let get_error_string () =
let str =
Format.sprintf
"expected exception %s, but no exception was raised."
(pexn exn)
in
match msg with
| None ->
assert_failure str
| Some s ->
assert_failure (s^"\n"^str)
in
match raises f with
| None ->
assert_failure (get_error_string ())
| Some e ->
assert_equal ?msg ~printer:pexn exn e
|