Function byte_position

crates/commitlog/src/tests/bitflip.rs:102–111

Select a random position of a byte within a segment. The position shall not fall on any headers (segment or commit), so as to reliably provoke checksum errors (and not any other errors).

(segment_len: usize)

/// The position shall not fall on any headers (segment or commit), so as to
/// reliably provoke checksum errors (and not any other errors).
fn byte_position(segment_len: usize) -> impl Strategy<Value = usize> {
    (segment::Header::LEN + commit::Header::LEN + 1..segment_len).prop_map(|mut byte_pos| {
        for x in commit_boundaries() {
            if byte_pos >= x && byte_pos < x + COMMIT_SIZE {
                byte_pos = byte_pos.max(x + commit::Header::LEN + 1);
            }
        }
        byte_pos
    })
}

proptest! {
    #[test]