httpbis 0.9.1

Rust implementation of HTTP/2 protocol
Documentation 
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use bytes::Buf;
use std::cmp;

/// Test if two buffers content is the same.
pub fn buf_eq<B1: Buf, B2: Buf>(mut b1: B1, mut b2: B2) -> bool {
    loop {
        if !b1.has_remaining() || !b2.has_remaining() {
            return b1.has_remaining() == b2.has_remaining();
        }
        let s1 = b1.bytes();
        let s2 = b2.bytes();
        let min = cmp::min(s1.len(), s2.len());
        if &s1[..min] != &s2[..min] {
            return false;
        }
        b1.advance(min);
        b2.advance(min);
    }
}

#[cfg(test)]
mod test {
    use super::*;
    use bytes::buf::ext::Chain;

    #[test]
    fn test() {
        assert!(buf_eq(b"".as_ref(), b"".as_ref()));
        assert!(buf_eq(b"ab".as_ref(), b"ab".as_ref()));
        assert!(!buf_eq(b"a".as_ref(), b"ab".as_ref()));
        assert!(!buf_eq(b"abc".as_ref(), b"ab".as_ref()));

        assert!(buf_eq(
            Chain::new(b"".as_ref(), b"ab".as_ref()),
            b"ab".as_ref()
        ));
        assert!(buf_eq(
            Chain::new(b"a".as_ref(), b"b".as_ref()),
            b"ab".as_ref()
        ));
        assert!(!buf_eq(
            Chain::new(b"a".as_ref(), b"bc".as_ref()),
            b"ab".as_ref()
        ));
    }
}