swh:1:snp:61dcfc0dd5674a0e65803e88039c122d9532074e
Tip revision: 6e3eb2355976c287ceb3235590fd29716bf5aaf0 authored by Peter Duchovni on 16 July 2021, 18:30:44 UTC
Counterexample: extend inline_phantom
Counterexample: extend inline_phantom
Tip revision: 6e3eb23
test_sub_string.ml
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let tamper_with s =
let open Bytes in
set (unsafe_of_string s) 0 'X'
let () =
(* test Stdlib.String.sub *)
let ful = String.make 1 '0' in
let sub = String.sub ful 0 1 in
tamper_with ful ;
assert (not (String.equal ful sub))
let () =
(* test Fixed.string - to_/of_string *)
let enc = Data_encoding.Fixed.string 1 in
let ful = String.make 1 '0' in
let bin = Data_encoding.Binary.to_string_exn enc ful in
let nib = Data_encoding.Binary.of_string_exn enc bin in
tamper_with bin ;
assert (String.equal ful nib)
let () =
(* test Fixed.string *)
let enc = Data_encoding.Fixed.string 1 in
let ful = String.make 1 '0' in
let buf = Bytes.create 1 in
let sta =
Option.get
@@ Data_encoding.Binary.make_writer_state buf ~offset:0 ~allowed_bytes:1
in
let wri = Data_encoding.Binary.write_exn enc ful sta in
assert (wri = 1) ;
let buf = Bytes.unsafe_to_string buf in
let (red, nib) = Data_encoding.Binary.read_exn enc buf 0 1 in
assert (red = 1) ;
tamper_with buf ;
assert (String.equal ful nib)
let () =
(* test Fixed.bytes - to_/of_bytes *)
let enc = Data_encoding.Fixed.bytes 1 in
let ful = Bytes.make 1 '0' in
let bin = Data_encoding.Binary.to_bytes_exn enc ful in
let nib = Data_encoding.Binary.of_bytes_exn enc bin in
Bytes.set bin 0 'X' ;
assert (Bytes.equal ful nib)