plonky2/evm/src/cpu/kernel/tests/ripemd.rs

use std::env;
use anyhow::Result;
use ethereum_types::U256;

use crate::cpu::kernel::aggregator::combined_kernel;
use crate::cpu::kernel::interpreter::run;

#[test]
fn test_ripemd() -> Result<()> {

    env::set_var("RUST_BACKTRACE", "1");

    let expected = "0xf71c27109c692c1b56bbdceb5b9d2865b3708dbc";
    println!("{}", expected);

    let kernel = combined_kernel();
    let ripemd = kernel.global_labels["ripemd_alt"];

    let input: Vec<u32> = vec![
        26  ,       0x61, 0x62, 
        0x63, 0x64, 0x65, 0x66, 
        0x67, 0x68, 0x69, 0x6a, 
        0x6b, 0x6c, 0x6d, 0x6e, 
        0x6f, 0x70, 0x71, 0x72, 
        0x73, 0x74, 0x75, 0x76, 
        0x77, 0x78, 0x79, 0x7a
    ];

    let initial_stack = input.iter().map(|&x| U256::from(x as u32)).collect();
    let hashed = run(&kernel.code, ripemd, initial_stack, &kernel.prover_inputs)?;
    let result = hashed.stack()[1];
    let actual = format!("{:X}", result);
    println!("{}", actual);
    assert_eq!(expected, actual);

    Ok(())
}