nuts-container 0.7.9

// MIT License
//
// Copyright (c) 2024 Robin Doer
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (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 THE
// AUTHORS OR COPYRIGHT HOLDERS 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.

use crate::buffer::{BufferError, BufferMut};

#[test]
fn put_chunk_empty_none() {
    let mut slice = [].as_mut_slice();

    slice.put_chunk(&[]).unwrap();

    assert!(slice.is_empty());
}

#[test]
fn put_chunk_empty_some() {
    let mut slice = [].as_mut_slice();
    let err = slice.put_chunk(&[1, 2, 3]).unwrap_err();

    assert!(matches!(err, BufferError::WriteZero));
}

#[test]
fn put_chunk_none() {
    let mut buf = [b'x'; 3];

    buf.as_mut_slice().put_chunk(&[]).unwrap();

    assert_eq!(&buf, b"xxx");
}

#[test]
fn put_chunk_some() {
    let mut buf = [b'x'; 3];

    buf.as_mut_slice().put_chunk(&[1]).unwrap();

    assert_eq!(buf, [1, b'x', b'x']);
}

#[test]
fn put_chunk_all() {
    let mut buf = [b'x'; 3];

    buf.as_mut_slice().put_chunk(&[1, 2, 3]).unwrap();

    assert_eq!(buf, [1, 2, 3]);
}

#[test]
fn put_chunk_more() {
    let mut buf = [b'x'; 3];
    let err = buf.as_mut_slice().put_chunk(&[1, 2, 3, 4]).unwrap_err();

    assert!(matches!(err, BufferError::WriteZero));
    assert_eq!(&buf, b"xxx");
}

#[test]
fn put_u8() {
    let mut buf = [b'x'; 2];

    buf.as_mut_slice().put_u8(1).unwrap();

    assert_eq!(buf, [1, b'x']);
}

#[test]
fn put_u8_eof() {
    let mut buf = [];
    let err = buf.as_mut_slice().put_u8(1).unwrap_err();

    assert!(matches!(err, BufferError::WriteZero));
}

#[test]
fn put_u16() {
    let mut buf = [b'x'; 3];

    buf.as_mut_slice().put_u16(258).unwrap();

    assert_eq!(buf, [1, 2, b'x']);
}

#[test]
fn put_u16_eof() {
    let mut buf = [b'x'; 1];
    let err = buf.as_mut_slice().put_u16(258).unwrap_err();

    assert!(matches!(err, BufferError::WriteZero));
    assert_eq!(&buf, b"x");
}

#[test]
fn put_u32() {
    let mut buf = [b'x'; 5];

    buf.as_mut_slice().put_u32(16_909_060).unwrap();

    assert_eq!(buf, [1, 2, 3, 4, b'x']);
}

#[test]
fn put_u32_eof() {
    let mut buf = [b'x'; 3];
    let err = buf.as_mut_slice().put_u32(16_909_060).unwrap_err();

    assert!(matches!(err, BufferError::WriteZero));
    assert_eq!(&buf, b"xxx");
}

#[test]
fn put_u64() {
    let mut buf = [b'x'; 9];

    buf.as_mut_slice().put_u64(72_623_859_790_382_856).unwrap();

    assert_eq!(buf, [1, 2, 3, 4, 5, 6, 7, 8, b'x']);
}

#[test]
fn put_u64_eof() {
    let mut buf = [b'x'; 7];
    let err = buf
        .as_mut_slice()
        .put_u64(72_623_859_790_382_856)
        .unwrap_err();

    assert!(matches!(err, BufferError::WriteZero));
    assert_eq!(&buf, b"xxxxxxx");
}

macro_rules! vec_tests {
    ($mod:ident, $len:literal) => {
        mod $mod {
            use crate::buffer::{BufferError, BufferMut};

            #[test]
            fn put_vec_len_eof() {
                let mut buf = [b'x'; $len - 1];
                let err = buf.as_mut_slice().put_vec::<$len>(&[]).unwrap_err();

                assert!(matches!(err, BufferError::WriteZero));
                assert_eq!(buf, [b'x'; $len - 1]);
            }

            #[test]
            fn put_vec_data_eof() {
                let mut buf = [b'x'; $len + 3 - 1];
                let err = buf.as_mut_slice().put_vec::<$len>(&[1, 2, 3]).unwrap_err();

                assert!(matches!(err, BufferError::WriteZero));
                assert_eq!(buf[..$len - 1], [0; $len - 1]);
                assert_eq!(buf[$len - 1..], [3, b'x', b'x']);
            }

            #[test]
            fn put_vec_empty() {
                let mut buf = [b'x'; $len + 1];

                buf.as_mut_slice().put_vec::<$len>(&[]).unwrap();

                assert_eq!(buf[..$len], [0; $len]);
                assert_eq!(buf[$len..], [b'x'; 1]);
            }

            #[test]
            fn put_vec() {
                let mut buf = [b'x'; $len + 3 + 1];

                buf.as_mut_slice().put_vec::<$len>(&[1, 2, 3]).unwrap();

                assert_eq!(buf[..$len - 1], [0; $len - 1]);
                assert_eq!(buf[$len - 1..], [3, 1, 2, 3, b'x']);
            }
        }
    };
}

vec_tests!(vec_1, 1);
vec_tests!(vec_2, 2);
vec_tests!(vec_3, 3);
vec_tests!(vec_4, 4);
vec_tests!(vec_5, 5);
vec_tests!(vec_6, 6);
vec_tests!(vec_7, 7);
vec_tests!(vec_8, 8);
vec_tests!(vec_9, 9);

#[test]
fn put_vec_too_large() {
    let mut buf = [b'x'; u16::MAX as usize + 3 + 1];
    let err = buf
        .as_mut_slice()
        .put_vec::<2>(&[1; u16::MAX as usize + 1])
        .unwrap_err();

    assert!(matches!(err, BufferError::VecTooLarge));
    assert_eq!(buf, [b'x'; u16::MAX as usize + 3 + 1]);
}