libmhash 0.2.1

A file hashing library that can do multiple hashes for multile files at the same time.
Documentation 
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const SHA1_BLOCK_SIZE: usize = 64;
const SHA1_DIGEST_SIZE: usize = 20;

cfg_if::cfg_if! {
    if #[cfg(feature = "alter-impl")] {
        mod alter;
        pub use alter::SHA1;
    } else {
        mod mine;
        pub use self::mine::SHA1;
    }
}

#[cfg(test)]
mod tests {
    use crate::paranoid_hash::{
        tester::{HasherTestWrapper, TestData},
        Hasher,
    };

    use super::SHA1;

    const TESTS: &[TestData] = &[
        TestData {
            data: "abc".as_bytes(),
            repeat: 1,
            result: "a9993e364706816aba3e25717850c26c9cd0d89d",
        },
        TestData {
            data: "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq".as_bytes(),
            repeat: 1,
            result: "84983e441c3bd26ebaae4aa1f95129e5e54670f1",
        },
        TestData {
            data: "a".as_bytes(),
            repeat: 1000000,
            result: "34aa973cd4c4daa4f61eeb2bdbad27316534016f",
        },
        TestData {
            data: "0123456701234567012345670123456701234567012345670123456701234567".as_bytes(),
            repeat: 10,
            result: "dea356a2cddd90c7a7ecedc5ebb563934f460452",
        },
        TestData {
            data: &[0x5e],
            repeat: 1,
            result: "5e6f80a34a9798cafc6a5db96cc57ba4c4db59c2",
        },
        TestData {
            data: &[
                0x9a, 0x7d, 0xfd, 0xf1, 0xec, 0xea, 0xd0, 0x6e, 0xd6, 0x46, 0xaa, 0x55, 0xfe, 0x75,
                0x71, 0x46,
            ],
            repeat: 1,
            result: "82abff6605dbe1c17def12a394fa22a82b544a35",
        },
        TestData {
            data: &[
                0xf7, 0x8f, 0x92, 0x14, 0x1b, 0xcd, 0x17, 0x0a, 0xe8, 0x9b, 0x4f, 0xba, 0x15, 0xa1,
                0xd5, 0x9f, 0x3f, 0xd8, 0x4d, 0x22, 0x3c, 0x92, 0x51, 0xbd, 0xac, 0xbb, 0xae, 0x61,
                0xd0, 0x5e, 0xd1, 0x15, 0xa0, 0x6a, 0x7c, 0xe1, 0x17, 0xb7, 0xbe, 0xea, 0xd2, 0x44,
                0x21, 0xde, 0xd9, 0xc3, 0x25, 0x92, 0xbd, 0x57, 0xed, 0xea, 0xe3, 0x9c, 0x39, 0xfa,
                0x1f, 0xe8, 0x94, 0x6a, 0x84, 0xd0, 0xcf, 0x1f, 0x7b, 0xee, 0xad, 0x17, 0x13, 0xe2,
                0xe0, 0x95, 0x98, 0x97, 0x34, 0x7f, 0x67, 0xc8, 0x0b, 0x04, 0x00, 0xc2, 0x09, 0x81,
                0x5d, 0x6b, 0x10, 0xa6, 0x83, 0x83, 0x6f, 0xd5, 0x56, 0x2a, 0x56, 0xca, 0xb1, 0xa2,
                0x8e, 0x81, 0xb6, 0x57, 0x66, 0x54, 0x63, 0x1c, 0xf1, 0x65, 0x66, 0xb8, 0x6e, 0x3b,
                0x33, 0xa1, 0x08, 0xb0, 0x53, 0x07, 0xc0, 0x0a, 0xff, 0x14, 0xa7, 0x68, 0xed, 0x73,
                0x50, 0x60, 0x6a, 0x0f, 0x85, 0xe6, 0xa9, 0x1d, 0x39, 0x6f, 0x5b, 0x5c, 0xbe, 0x57,
                0x7f, 0x9b, 0x38, 0x80, 0x7c, 0x7d, 0x52, 0x3d, 0x6d, 0x79, 0x2f, 0x6e, 0xbc, 0x24,
                0xa4, 0xec, 0xf2, 0xb3, 0xa4, 0x27, 0xcd, 0xbb, 0xfb,
            ],
            repeat: 1,
            result: "cb0082c8f197d260991ba6a460e76e202bad27b3",
        },
    ];

    #[test]
    fn tests_from_rfc() {
        HasherTestWrapper::new(SHA1::new()).run_tests(TESTS);
    }

    #[cfg(not(feature = "alter-impl"))]
    #[test]
    #[should_panic]
    fn panic_test1() {
        let mut hasher = SHA1::new();
        hasher
            .update("Not multiple of block size".as_bytes())
            .unwrap();
    }

    #[cfg(not(feature = "alter-impl"))]
    #[test]
    #[should_panic]
    fn panic_test2() {
        let mut hasher = SHA1::new();
        let data = [0u8; SHA1::BLOCK_SIZE + 1];
        hasher.update_last(&data).unwrap();
    }

    #[test]
    #[should_panic]
    fn panic_test3() {
        let hasher = SHA1::new();
        hasher.digest().unwrap();
    }
}