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|
use block_buffer::{
generic_array::typenum::{U10, U16, U24, U4, U8},
Block, EagerBuffer, LazyBuffer,
};
#[test]
fn test_eager_digest_pad() {
let mut buf = EagerBuffer::<U4>::default();
let inputs = [
&b"01234567"[..],
&b"89"[..],
&b"abcdefghij"[..],
&b"klmnopqrs"[..],
&b"tuv"[..],
&b"wx"[..],
];
let exp_blocks = [
(0, &[b"0123", b"4567"][..]),
(2, &[b"89ab"][..]),
(2, &[b"cdef", b"ghij"][..]),
(3, &[b"klmn", b"opqr"][..]),
(4, &[b"stuv"][..]),
];
let exp_poses = [0, 2, 0, 1, 0, 2];
let mut n = 0;
for (i, input) in inputs.iter().enumerate() {
buf.digest_blocks(input, |b| {
let (j, exp) = exp_blocks[n];
n += 1;
assert_eq!(i, j);
assert_eq!(b.len(), exp.len());
assert!(b.iter().zip(exp.iter()).all(|v| v.0[..] == v.1[..]));
});
assert_eq!(exp_poses[i], buf.get_pos());
}
assert_eq!(buf.pad_with_zeros()[..], b"wx\0\0"[..]);
assert_eq!(buf.get_pos(), 0);
}
#[test]
fn test_lazy_digest_pad() {
let mut buf = LazyBuffer::<U4>::default();
let inputs = [
&b"01234567"[..],
&b"89"[..],
&b"abcdefghij"[..],
&b"klmnopqrs"[..],
];
let expected = [
(0, &[b"0123"][..]),
(1, &[b"4567"][..]),
(2, &[b"89ab"][..]),
(2, &[b"cdef"][..]),
(3, &[b"ghij"][..]),
(3, &[b"klmn", b"opqr"][..]),
];
let exp_poses = [4, 2, 4, 1];
let mut n = 0;
for (i, input) in inputs.iter().enumerate() {
buf.digest_blocks(input, |b| {
let (j, exp) = expected[n];
n += 1;
assert_eq!(i, j);
assert_eq!(b.len(), exp.len());
assert!(b.iter().zip(exp.iter()).all(|v| v.0[..] == v.1[..]));
});
assert_eq!(exp_poses[i], buf.get_pos());
}
assert_eq!(buf.pad_with_zeros()[..], b"s\0\0\0"[..]);
assert_eq!(buf.get_pos(), 0);
}
#[test]
fn test_eager_set_data() {
let mut buf = EagerBuffer::<U4>::default();
let mut n = 0u8;
let mut gen = |blocks: &mut [Block<U4>]| {
for block in blocks {
block.iter_mut().for_each(|b| *b = n);
n += 1;
}
};
let mut out = [0u8; 6];
buf.set_data(&mut out, &mut gen);
assert_eq!(out, [0, 0, 0, 0, 1, 1]);
assert_eq!(buf.get_pos(), 2);
let mut out = [0u8; 3];
buf.set_data(&mut out, &mut gen);
assert_eq!(out, [1, 1, 2]);
assert_eq!(buf.get_pos(), 1);
let mut out = [0u8; 3];
buf.set_data(&mut out, &mut gen);
assert_eq!(out, [2, 2, 2]);
assert_eq!(n, 3);
assert_eq!(buf.get_pos(), 0);
}
#[test]
#[rustfmt::skip]
fn test_eager_paddings() {
let mut buf_be = EagerBuffer::<U8>::new(&[0x42]);
let mut buf_le = buf_be.clone();
let mut out_be = Vec::<u8>::new();
let mut out_le = Vec::<u8>::new();
let len = 0x0001_0203_0405_0607;
buf_be.len64_padding_be(len, |block| out_be.extend(block));
buf_le.len64_padding_le(len, |block| out_le.extend(block));
assert_eq!(
out_be,
[
0x42, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
],
);
assert_eq!(
out_le,
[
0x42, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00,
],
);
let mut buf_be = EagerBuffer::<U10>::new(&[0x42]);
let mut buf_le = buf_be.clone();
let mut out_be = Vec::<u8>::new();
let mut out_le = Vec::<u8>::new();
buf_be.len64_padding_be(len, |block| out_be.extend(block));
buf_le.len64_padding_le(len, |block| out_le.extend(block));
assert_eq!(
out_be,
[0x42, 0x80, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07],
);
assert_eq!(
out_le,
[0x42, 0x80, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00],
);
let mut buf = EagerBuffer::<U16>::new(&[0x42]);
let mut out = Vec::<u8>::new();
let len = 0x0001_0203_0405_0607_0809_0a0b_0c0d_0e0f;
buf.len128_padding_be(len, |block| out.extend(block));
assert_eq!(
out,
[
0x42, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
],
);
let mut buf = EagerBuffer::<U24>::new(&[0x42]);
let mut out = Vec::<u8>::new();
let len = 0x0001_0203_0405_0607_0809_0a0b_0c0d_0e0f;
buf.len128_padding_be(len, |block| out.extend(block));
assert_eq!(
out,
[
0x42, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
],
);
let mut buf = EagerBuffer::<U4>::new(&[0x42]);
let mut out = Vec::<u8>::new();
buf.digest_pad(0xff, &[0x10, 0x11, 0x12], |block| out.extend(block));
assert_eq!(
out,
[0x42, 0xff, 0x00, 0x00, 0x00, 0x10, 0x11, 0x12],
);
let mut buf = EagerBuffer::<U4>::new(&[0x42]);
let mut out = Vec::<u8>::new();
buf.digest_pad(0xff, &[0x10, 0x11], |block| out.extend(block));
assert_eq!(
out,
[0x42, 0xff, 0x10, 0x11],
);
}
#[test]
fn test_try_new() {
assert!(EagerBuffer::<U4>::try_new(&[0; 3]).is_ok());
assert!(EagerBuffer::<U4>::try_new(&[0; 4]).is_err());
assert!(LazyBuffer::<U4>::try_new(&[0; 4]).is_ok());
assert!(LazyBuffer::<U4>::try_new(&[0; 5]).is_err());
}
|
