nockchain/crates/nockvm/rust/murmur3/tests/quickcheck.rs

// Copyright (c) 2020 Stu Small
//
// Licensed under the Apache License, Version 2.0
// <LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0> or the MIT
// license <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. All files in the project carrying such notice may not be copied,
// modified, or distributed except according to those terms.
#[macro_use]
extern crate quickcheck;

#[cfg(test)]
mod test {
    extern crate murmur3;
    extern crate murmur3_sys;

    use std::io::Cursor;

    use murmur3::{murmur3_32, murmur3_32_of_slice};
    use murmur3_sys::MurmurHash3_x86_32;

    use murmur3::murmur3_x86_128;
    use murmur3_sys::MurmurHash3_x86_128;

    use murmur3::murmur3_x64_128;
    use murmur3_sys::MurmurHash3_x64_128;

    quickcheck! {
        #[cfg_attr(miri, ignore)]
        fn quickcheck_32(input:(u32, Vec<u8>)) -> bool{
            let seed = input.0;
            let xs = input.1;
            let output: [u8; 4] = [0; 4];
            unsafe {
                MurmurHash3_x86_32(xs.as_ptr() as _, xs.len() as i32,seed,output.as_ptr() as *mut _)
            };
            let output = u32::from_le_bytes(output);
            let output2 = murmur3_32(&mut Cursor::new(xs), seed).unwrap_or_else(|err| panic!("Panicked with {err:?} at {}:{} (git sha: {:?})", file!(), line!(), option_env!("GIT_SHA")));
            output == output2
        }
    }

    quickcheck! {
        #[cfg_attr(miri, ignore)]
        fn quickcheck_32_slice(input:(u32, Vec<u8>)) -> bool{
            let seed = input.0;
            let xs = input.1;
            let mut output: [u8; 4] = [0; 4];
            unsafe {
                MurmurHash3_x86_32(xs.as_ptr() as _, xs.len() as i32, seed, output.as_mut_ptr() as _)
            };
            let output = u32::from_le_bytes(output);
            let output2 = murmur3_32_of_slice(&xs[..], seed);
            output == output2
        }
    }

    quickcheck! {
        #[cfg_attr(miri, ignore)]
        fn quickcheck_x86_128(input:(u32, Vec<u8>)) -> bool {
            let seed = input.0;
            let xs = input.1;
            let output_bytes: [u8; 16] = [0; 16];
            unsafe {
                MurmurHash3_x86_128(xs.as_ptr() as _, xs.len() as i32,seed,output_bytes.as_ptr() as *mut _)
            };
            let output = u128::from_le_bytes(output_bytes);
            let output2 = murmur3_x86_128(&mut Cursor::new(xs), seed).unwrap_or_else(|err| panic!("Panicked with {err:?} at {}:{} (git sha: {:?})", file!(), line!(), option_env!("GIT_SHA")));
            output == output2
        }
    }

    quickcheck! {
        #[cfg_attr(miri, ignore)]
        fn quickcheck_x64_128(input:(u32, Vec<u8>)) -> bool {
            let seed = input.0;
            let xs = input.1;
            let output_bytes: [u8; 16] = [0; 16];
            unsafe {
                MurmurHash3_x64_128(xs.as_ptr() as _, xs.len() as i32,seed, output_bytes.as_ptr() as *mut _)
            };
            let output = u128::from_le_bytes(output_bytes);
            let output2 = murmur3_x64_128(&mut Cursor::new(xs), seed).unwrap_or_else(|err| panic!("Panicked with {err:?} at {}:{} (git sha: {:?})", file!(), line!(), option_env!("GIT_SHA")));
            output == output2
        }
    }
}