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|
open OUnit
open ExtUnix.All.BA
module LargeFile = ExtUnix.All.LargeFile.BA
let with_unix_error f () =
try f ()
with Unix.Unix_error(e,f,a) -> assert_failure (Printf.sprintf "Unix_error : %s(%s) : %s" f a (Unix.error_message e))
let require feature =
match ExtUnix.All.have feature with
| None -> assert false
| Some present -> skip_if (not present) (Printf.sprintf "%S is not available" feature)
let printer x = x
let test_endian_bigarray () =
require "unsafe_get_int8";
require "unsafe_get_int16";
require "unsafe_get_int31";
require "unsafe_get_int32";
require "unsafe_get_int64";
require "unsafe_get_uint8";
require "unsafe_get_uint16";
require "unsafe_get_uint31";
require "unsafe_set_uint8";
require "unsafe_set_uint16";
require "unsafe_set_uint31";
require "unsafe_set_int8";
require "unsafe_set_int16";
require "unsafe_set_int31";
require "unsafe_set_int32";
require "unsafe_set_int64";
let module B = BigEndian in
let module L = LittleEndian in
let src = Bigarray.Array1.create Bigarray.int8_unsigned Bigarray.c_layout 18 in
ignore (List.fold_left (fun off x -> Bigarray.Array1.set src off x; off + 1)
0
[0xFF;
0xFF;
0xFE; 0xDC;
0xFE; 0xDC;
0xFE; 0xDC; 0xBA; 0x98;
0xFE; 0xDC; 0xBA; 0x98; 0x76; 0x54; 0x32; 0x10]);
assert_equal (B.get_uint8 src 0) 0xFF;
assert_equal (B.get_int8 src 1) (-0x01);
assert_equal (B.get_uint16 src 2) 0xFEDC;
assert_equal (B.get_int16 src 4) (-0x0124);
assert_equal (B.get_int32 src 6) (0xFEDCBA98l);
assert_equal (B.get_int64 src 10) (0xFEDCBA9876543210L);
assert_equal (L.get_uint8 src 0) 0xFF;
assert_equal (L.get_int8 src 1) (-0x01);
assert_equal (L.get_uint16 src 2) 0xDCFE;
assert_equal (L.get_int16 src 4) (-0x2302);
assert_equal (L.get_int32 src 6) (0x98BADCFEl);
assert_equal (L.get_int64 src 10) (0x1032547698BADCFEL);
let b = Bigarray.Array1.create Bigarray.int8_unsigned Bigarray.c_layout 18 in
B.set_uint8 b 0 0xFF;
B.set_int8 b 1 (-0x01);
B.set_uint16 b 2 0xFEDC;
B.set_uint16 b 4 (-0x0124);
B.set_int32 b 6 (0xFEDCBA98l);
B.set_int64 b 10 (0xFEDCBA9876543210L);
assert_equal b src;
let l = Bigarray.Array1.create Bigarray.int8_unsigned Bigarray.c_layout 18 in
L.set_uint8 l 0 0xFF;
L.set_int8 l 1 (-0x01);
L.set_uint16 l 2 0xDCFE;
L.set_uint16 l 4 (-0x2302);
L.set_int32 l 6 (0x98BADCFEl);
L.set_int64 l 10 (0x1032547698BADCFEL);
assert_equal l src
let cmp_buf buf c text =
for i = 0 to Bigarray.Array1.dim buf - 1 do
if Bigarray.Array1.get buf i <> (int_of_char c)
then assert_failure text;
done
let test_pread_bigarray () =
require "unsafe_pread";
let name = Filename.temp_file "extunix" "pread" in
let fd =
Unix.openfile name [Unix.O_RDWR] 0
in
try
let size = 65536 in
let s = String.make size 'x' in
assert_equal (Unix.write fd s 0 size) size;
let t = Bigarray.Array1.create Bigarray.int8_unsigned Bigarray.c_layout size in
assert_equal (pread fd 0 t) size;
cmp_buf t 'x' "pread read bad data";
ignore (single_pread fd 0 t);
let t = Bigarray.Array1.create Bigarray.int8_unsigned Bigarray.c_layout size in
assert_equal (LargeFile.pread fd Int64.zero t) size;
cmp_buf t 'x' "Largefile.pread read bad data";
ignore (LargeFile.single_pread fd Int64.zero t);
Unix.close fd;
Unix.unlink name
with exn -> Unix.close fd; Unix.unlink name; raise exn
let cmp_str str c text =
for i = 0 to String.length str - 1 do
if str.[i] <> c
then assert_failure text;
done
let test_pwrite_bigarray () =
require "unsafe_pwrite";
let name = Filename.temp_file "extunix" "pwrite" in
let fd =
Unix.openfile name [Unix.O_RDWR] 0
in
let read dst =
assert_equal (Unix.lseek fd 0 Unix.SEEK_SET) 0;
let rec loop off = function
| 0 -> ()
| size ->
let len = Unix.read fd dst off size
in
loop (off + len) (size - len)
in
loop 0 (String.length dst)
in
try
let size = 65536 in (* Must be larger than UNIX_BUFFER_SIZE (16384) *)
let s = Bigarray.Array1.create Bigarray.int8_unsigned Bigarray.c_layout size in
for i = 0 to size - 1 do
Bigarray.Array1.set s i (int_of_char 'x');
done;
assert_equal (pwrite fd 0 s) size;
let t = String.make size ' ' in
read t;
cmp_str t 'x' "pwrite wrote bad data";
ignore (single_pwrite fd 0 s);
for i = 0 to size - 1 do
Bigarray.Array1.set s i (int_of_char 'y');
done;
assert_equal (LargeFile.pwrite fd Int64.zero s) size;
read t;
cmp_str t 'y' "Largefile.pwrite wrote bad data";
ignore (LargeFile.single_pwrite fd Int64.zero s);
Unix.close fd;
Unix.unlink name
with exn -> Unix.close fd; Unix.unlink name; raise exn
let test_substr () =
let arr = Bigarray.Array1.create Bigarray.int8_unsigned Bigarray.c_layout 12 in
set_substr arr 0 "Hell";
set_substr arr 4 "o World!";
assert_equal (get_substr arr 0 6) "Hello ";
assert_equal (get_substr arr 6 6) "World!"
let test_read_bigarray () =
require "read";
let name = Filename.temp_file "extunix" "read" in
let fd =
Unix.openfile name [Unix.O_RDWR] 0
in
try
let size = 65536 in
let s = String.make size 'x' in
assert_equal (Unix.write fd s 0 size) size;
let t = Bigarray.Array1.create Bigarray.int8_unsigned Bigarray.c_layout size in
assert_equal (Unix.lseek fd 0 Unix.SEEK_SET) 0;
assert_equal (read fd t) size;
cmp_buf t 'x' "read read bad data";
assert_equal (Unix.lseek fd 0 Unix.SEEK_SET) 0;
ignore (single_read fd t);
Unix.close fd;
Unix.unlink name
with exn -> Unix.close fd; Unix.unlink name; raise exn
let test_write_bigarray () =
require "write";
let name = Filename.temp_file "extunix" "write" in
let fd =
Unix.openfile name [Unix.O_RDWR] 0
in
let read dst =
assert_equal (Unix.lseek fd 0 Unix.SEEK_SET) 0;
let rec loop off = function
| 0 -> ()
| size ->
let len = Unix.read fd dst off size
in
loop (off + len) (size - len)
in
loop 0 (String.length dst)
in
try
let size = 65536 in (* Must be larger than UNIX_BUFFER_SIZE (16384) *)
let s = Bigarray.Array1.create Bigarray.int8_unsigned Bigarray.c_layout size in
for i = 0 to size - 1 do
Bigarray.Array1.set s i (int_of_char 'x');
done;
assert_equal (write fd s) size;
let t = String.make size ' ' in
read t;
cmp_str t 'x' "write wrote bad data";
ignore (single_write fd s);
Unix.close fd;
Unix.unlink name
with exn -> Unix.close fd; Unix.unlink name; raise exn
let () =
let wrap test =
with_unix_error (fun () -> test (); Gc.compact ())
in
let tests = ("tests" >::: [
"endian_bigrray" >:: test_endian_bigarray;
"pread_bigarray" >:: test_pread_bigarray;
"pwrite_bigarray" >:: test_pwrite_bigarray;
"substr" >:: test_substr;
"read_bigarray" >:: test_read_bigarray;
"write_bigarray" >:: test_write_bigarray;
]) in
ignore (run_test_tt_main (test_decorate wrap tests))
|
