// Port of go1.25.5 src/crypto/sha256/sha256_test.go TestGolden (SHA-256
// vectors; SHA-224 not implemented in goish).
//
// Skipped: TestGoldenMarshal, TestBlockGeneric, cryptotest driver.

#![allow(non_snake_case)]
use goish::prelude::*;

struct Golden256 {
    out: &'static str,
    inp: &'static str,
}

fn golden() -> Vec<Golden256> {
    vec![
        Golden256 { out: "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", inp: "" },
        Golden256 { out: "ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb", inp: "a" },
        Golden256 { out: "fb8e20fc2e4c3f248c60c39bd652f3c1347298bb977b8b4d5903b85055620603", inp: "ab" },
        Golden256 { out: "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad", inp: "abc" },
        Golden256 { out: "88d4266fd4e6338d13b845fcf289579d209c897823b9217da3e161936f031589", inp: "abcd" },
        Golden256 { out: "36bbe50ed96841d10443bcb670d6554f0a34b761be67ec9c4a8ad2c0c44ca42c", inp: "abcde" },
        Golden256 { out: "bef57ec7f53a6d40beb640a780a639c83bc29ac8a9816f1fc6c5c6dcd93c4721", inp: "abcdef" },
        Golden256 { out: "7d1a54127b222502f5b79b5fb0803061152a44f92b37e23c6527baf665d4da9a", inp: "abcdefg" },
        Golden256 { out: "9c56cc51b374c3ba189210d5b6d4bf57790d351c96c47c02190ecf1e430635ab", inp: "abcdefgh" },
        Golden256 { out: "19cc02f26df43cc571bc9ed7b0c4d29224a3ec229529221725ef76d021c8326f", inp: "abcdefghi" },
        Golden256 { out: "72399361da6a7754fec986dca5b7cbaf1c810a28ded4abaf56b2106d06cb78b0", inp: "abcdefghij" },
        Golden256 { out: "a144061c271f152da4d151034508fed1c138b8c976339de229c3bb6d4bbb4fce", inp: "Discard medicine more than two years old." },
        Golden256 { out: "6dae5caa713a10ad04b46028bf6dad68837c581616a1589a265a11288d4bb5c4", inp: "He who has a shady past knows that nice guys finish last." },
        Golden256 { out: "ae7a702a9509039ddbf29f0765e70d0001177914b86459284dab8b348c2dce3f", inp: "I wouldn't marry him with a ten foot pole." },
        Golden256 { out: "6748450b01c568586715291dfa3ee018da07d36bb7ea6f180c1af6270215c64f", inp: "Free! Free!/A trip/to Mars/for 900/empty jars/Burma Shave" },
        Golden256 { out: "14b82014ad2b11f661b5ae6a99b75105c2ffac278cd071cd6c05832793635774", inp: "The days of the digital watch are numbered.  -Tom Stoppard" },
        Golden256 { out: "7102cfd76e2e324889eece5d6c41921b1e142a4ac5a2692be78803097f6a48d8", inp: "Nepal premier won't resign." },
        Golden256 { out: "23b1018cd81db1d67983c5f7417c44da9deb582459e378d7a068552ea649dc9f", inp: "For every action there is an equal and opposite government program." },
        Golden256 { out: "8001f190dfb527261c4cfcab70c98e8097a7a1922129bc4096950e57c7999a5a", inp: "His money is twice tainted: 'taint yours and 'taint mine." },
        Golden256 { out: "8c87deb65505c3993eb24b7a150c4155e82eee6960cf0c3a8114ff736d69cad5", inp: "There is no reason for any individual to have a computer in their home. -Ken Olsen, 1977" },
        Golden256 { out: "bfb0a67a19cdec3646498b2e0f751bddc41bba4b7f30081b0b932aad214d16d7", inp: "It's a tiny change to the code and not completely disgusting. - Bob Manchek" },
        Golden256 { out: "7f9a0b9bf56332e19f5a0ec1ad9c1425a153da1c624868fda44561d6b74daf36", inp: "size:  a.out:  bad magic" },
        Golden256 { out: "b13f81b8aad9e3666879af19886140904f7f429ef083286195982a7588858cfc", inp: "The major problem is with sendmail.  -Mark Horton" },
        Golden256 { out: "b26c38d61519e894480c70c8374ea35aa0ad05b2ae3d6674eec5f52a69305ed4", inp: "Give me a rock, paper and scissors and I will move the world.  CCFestoon" },
        Golden256 { out: "049d5e26d4f10222cd841a119e38bd8d2e0d1129728688449575d4ff42b842c1", inp: "If the enemy is within range, then so are you." },
        Golden256 { out: "0e116838e3cc1c1a14cd045397e29b4d087aa11b0853fc69ec82e90330d60949", inp: "It's well we cannot hear the screams/That we create in others' dreams." },
        Golden256 { out: "4f7d8eb5bcf11de2a56b971021a444aa4eafd6ecd0f307b5109e4e776cd0fe46", inp: "You remind me of a TV show, but that's all right: I watch it anyway." },
        Golden256 { out: "61c0cc4c4bd8406d5120b3fb4ebc31ce87667c162f29468b3c779675a85aebce", inp: "C is as portable as Stonehedge!!" },
        Golden256 { out: "1fb2eb3688093c4a3f80cd87a5547e2ce940a4f923243a79a2a1e242220693ac", inp: "Even if I could be Shakespeare, I think I should still choose to be Faraday. - A. Huxley" },
        Golden256 { out: "395585ce30617b62c80b93e8208ce866d4edc811a177fdb4b82d3911d8696423", inp: "The fugacity of a constituent in a mixture of gases at a given temperature is proportional to its mole fraction.  Lewis-Randall Rule" },
        Golden256 { out: "4f9b189a13d030838269dce846b16a1ce9ce81fe63e65de2f636863336a98fe6", inp: "How can you write a big system without C++?  -Paul Glick" },
    ]
}

fn to_hex(bytes: &[u8]) -> String {
    let mut s = String::with_capacity(bytes.len() * 2);
    for b in bytes { s.push_str(&format!("{:02x}", b)); }
    s
}

test!{ fn TestGolden(t) {
    let __golden = golden();
    for (_, g) in range!(__golden) {
        let sum = crypto::sha256::Sum256(g.inp.as_bytes());
        let hex = to_hex(&sum);
        if hex != g.out {
            t.Errorf(Sprintf!("Sum: sha256(%s) = %s want %s", g.inp, hex, g.out));
            continue;
        }
        let mut c = crypto::sha256::New();
        c.Write(g.inp.as_bytes());
        let s1 = to_hex(&c.Sum(&[]));
        if s1 != g.out {
            t.Errorf(Sprintf!("streaming: sha256(%s) = %s want %s", g.inp, s1, g.out));
        }
        c.Reset();
        let half = g.inp.len() / 2;
        c.Write(&g.inp.as_bytes()[..half]);
        let _ = c.Sum(&[]);
        c.Write(&g.inp.as_bytes()[half..]);
        let s2 = to_hex(&c.Sum(&[]));
        if s2 != g.out {
            t.Errorf(Sprintf!("split write: sha256(%s) = %s want %s", g.inp, s2, g.out));
        }
    }
}}

test!{ fn TestSize(t) {
    if crypto::sha256::Size != 32 {
        t.Errorf(Sprintf!("Size = %d, want 32", crypto::sha256::Size));
    }
}}

test!{ fn TestBlockSize(t) {
    if crypto::sha256::BlockSize != 64 {
        t.Errorf(Sprintf!("BlockSize = %d, want 64", crypto::sha256::BlockSize));
    }
}}
