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ssz.test.js
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ssz.test.js
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import { deepStrictEqual, throws } from 'node:assert';
import { readdirSync, readFileSync } from 'node:fs';
import { describe, should } from 'micro-should';
import { hexToBytes, bytesToHex } from '@noble/hashes/utils';
import * as SSZ from '../esm/ssz.js';
import * as snappy from 'snappyjs';
import * as yaml from 'yaml';
import { __dirname } from './util.js';
// https://github.com/ethereum/consensus-spec-tests
const PATH = './test/vectors/consensus-spec-tests/tests/general/phase0/ssz_generic/';
const STATIC_PATH = './test/vectors/consensus-spec-tests/tests/mainnet/deneb/ssz_static/';
const SSZ_STABLE_PATH = './vectors/ssz/';
const SSZ_STABLE_PATH_2 = `${__dirname}/vectors/ssz`;
function parseVectors(path) {
const res = {};
for (const name of readdirSync(`${__dirname}/${path}`)) {
const curPath = `${__dirname}/${path}/${name}`;
const data = readFileSync(`${curPath}/serialized.ssz_snappy`);
const hex = bytesToHex(snappy.uncompress(data));
const meta = yaml.parse(readFileSync(`${curPath}/meta.yaml`, 'utf8'), yamlOpt);
const value = yaml.parse(readFileSync(`${curPath}/value.yaml`, 'utf8'), yamlOpt);
res[name] = { meta, value, hex };
}
return res;
}
// TODO: think about additional package to export vectors?
// Pros: less deps?
// Cons: need to sync after changes, bigints issues with json (need to add parser/decoder with bigint support)
const VALID = {};
const INVALID = {};
const yamlOpt = { intAsBigInt: true };
for (const category of readdirSync(PATH)) {
for (const valid of ['valid', 'invalid']) {
for (const name of readdirSync(`${PATH}/${category}/${valid}`)) {
const curPath = `${PATH}/${category}/${valid}/${name}`;
const data = readFileSync(`${curPath}/serialized.ssz_snappy`);
const hex = bytesToHex(snappy.uncompress(data));
const fullName = `${category}/${name}`;
if (valid === 'valid') {
const meta = yaml.parse(readFileSync(`${curPath}/meta.yaml`, 'utf8'), yamlOpt);
const value = yaml.parse(readFileSync(`${curPath}/value.yaml`, 'utf8'), yamlOpt);
VALID[fullName] = { meta, value, hex };
} else {
INVALID[fullName] = hex;
}
}
}
}
function readStructVectors(path) {
const res = [];
for (const type of readdirSync(path)) {
for (const name of readdirSync(`${path}/${type}`)) {
for (const name2 of readdirSync(`${path}/${type}/${name}`)) {
const fullName = `${name}/${name2}`;
const curPath = `${path}/${type}/${name}/${name2}`;
const data = readFileSync(`${curPath}/serialized.ssz_snappy`);
const hex = bytesToHex(snappy.uncompress(data));
const meta = yaml.parse(readFileSync(`${curPath}/roots.yaml`, 'utf8'), yamlOpt);
const value = yaml.parse(readFileSync(`${curPath}/value.yaml`, 'utf8'), yamlOpt);
res.push({ type, name: fullName, hex, meta, value });
}
}
}
return res;
}
const STATIC_VECTORS = readStructVectors(STATIC_PATH);
// patch u8a && bigints
const mapTypes = (type, electra, elm) => {
const mt = mapTypes.bind(null, type, electra);
if (elm === null) return elm;
if (Array.isArray(elm)) return elm.map(mt);
if (typeof elm === 'object') {
const res = {};
for (const [k, v] of Object.entries(elm)) {
if (v === null) continue;
if (
[
'transactions',
'blob_kzg_commitments',
'proof',
'block_roots',
'state_roots',
'historical_roots',
'pubkeys',
'randao_mixes',
'kzg_commitment_inclusion_proof',
'current_sync_committee_branch',
'execution_branch',
'finality_branch',
'next_sync_committee_branch',
].includes(k) &&
Array.isArray(v)
) {
res[k] = v.map((i) => hexToBytes(i.slice(2)));
} else if (
['previous_epoch_participation', 'current_epoch_participation'].includes(k) &&
Array.isArray(v)
) {
res[k] = v.map(Number);
} else if (k === 'aggregation_bits') {
if (
[
'SyncCommitteeContribution',
'ContributionAndProof',
'SignedContributionAndProof',
].includes(type)
) {
res[k] = SSZ.bitvector(128).decode(hexToBytes(v.slice(2)));
} else if (
['StableAttestation', 'Attestation', 'StableBeaconBlockBody', 'BeaconBlockBody'].includes(
type
)
) {
res[k] = SSZ.bitlist(2048 * 64).decode(hexToBytes(v.slice(2)));
} else res[k] = SSZ.bitlist(2048).decode(hexToBytes(v.slice(2)));
} else if (k === 'sync_committee_bits') {
res[k] = SSZ.bitvector(512).decode(hexToBytes(v.slice(2)));
} else if (k === 'justification_bits') {
res[k] = SSZ.bitvector(4).decode(hexToBytes(v.slice(2)));
} else if (k === 'committee_bits') {
res[k] = SSZ.bitvector(64).decode(hexToBytes(v.slice(2)));
} else if (
[
'root',
'beacon_block_root',
'signature',
'selection_proof',
'from_bls_pubkey',
'to_execution_address',
'parent_root',
'state_root',
'randao_reveal',
'deposit_root',
'block_hash',
'graffiti',
'body_root',
'sync_committee_signature',
'parent_hash',
'fee_recipient',
'receipts_root',
'logs_bloom',
'prev_randao',
'extra_data',
'address',
'pubkey',
'withdrawal_credentials',
'genesis_validators_root',
'aggregate_pubkey',
'previous_version',
'current_version',
'transactions_root',
'block_summary_root',
'state_summary_root',
'withdrawals_root',
'block_root',
'blob',
'kzg_commitment',
'kzg_proof',
'object_root',
'domain',
'source_address',
'source_pubkey',
'target_pubkey',
'receipts_root',
'prev_randao',
'validator_pubkey',
].includes(k)
) {
res[k] = hexToBytes(v.slice(2));
} else if (['base_fee_per_gas', 'total_difficulty'].includes(k)) {
res[k] = BigInt(v);
} else {
res[k] = mt(v);
}
}
return res;
}
return elm;
};
describe('SSZ', () => {
describe('staticContainer', () => {
describe('basic (from EIP)', () => {
const Shape1 = SSZ.stableContainer(4, {
side: SSZ.uint16,
color: SSZ.uint8,
radius: SSZ.uint16,
});
const Shape2 = SSZ.stableContainer(8, {
side: SSZ.uint16,
color: SSZ.uint8,
radius: SSZ.uint16,
});
const Shape3 = SSZ.stableContainer(8, {
side: SSZ.uint16,
colors: SSZ.list(4, SSZ.uint8),
radius: SSZ.uint16,
});
const VarTestStruct = SSZ.container({
A: SSZ.uint16,
B: Shape3,
C: SSZ.uint8,
});
const VarTestStruct2 = SSZ.container({
A: SSZ.uint16,
B: SSZ.list(2, Shape3),
C: SSZ.uint8,
});
const ShapePair3 = SSZ.container({
shape_1: Shape3,
shape_2: Shape3,
});
const Shape4 = SSZ.stableContainer(33, {
side: SSZ.uint16,
colors: SSZ.list(4, SSZ.uint8),
radius: SSZ.uint16,
});
const ShapePair4 = SSZ.container({
shape_1: Shape4,
shape_2: Shape4,
});
should('stableContainer', () => {
const VECTORS = [
{
c: Shape1,
value: { side: 0x42, color: 1, radius: 0x42 },
serialized: '074200014200',
hash_tree_root: '37b28eab19bc3e246e55d2e2b2027479454c27ee006d92d4847c84893a162e6d',
},
{
c: Shape1,
value: { side: 0x42, color: 1 },
serialized: '03420001',
hash_tree_root: 'bfdb6fda9d02805e640c0f5767b8d1bb9ff4211498a5e2d7c0f36e1b88ce57ff',
},
{
c: Shape1,
value: { color: 1 },
serialized: '0201',
hash_tree_root: '522edd7309c0041b8eb6a218d756af558e9cf4c816441ec7e6eef42dfa47bb98',
},
{
c: Shape1,
value: { color: 1, radius: 0x42 },
serialized: '06014200',
hash_tree_root: 'f66d2c38c8d2afbd409e86c529dff728e9a4208215ca20ee44e49c3d11e145d8',
},
{
c: Shape2,
value: { side: 0x42, color: 1, radius: 0x42 },
serialized: '074200014200',
hash_tree_root: '0792fb509377ee2ff3b953dd9a88eee11ac7566a8df41c6c67a85bc0b53efa4e',
},
{
c: Shape2,
value: { side: 0x42, color: 1 },
serialized: '03420001',
hash_tree_root: 'ddc7acd38ae9d6d6788c14bd7635aeb1d7694768d7e00e1795bb6d328ec14f28',
},
{
c: Shape2,
value: { color: 1 },
serialized: '0201',
hash_tree_root: '9893ecf9b68030ff23c667a5f2e4a76538a8e2ab48fd060a524888a66fb938c9',
},
{
c: Shape2,
value: { color: 1, radius: 0x42 },
serialized: '06014200',
hash_tree_root: 'e823471310312d52aa1135d971a3ed72ba041ade3ec5b5077c17a39d73ab17c5',
},
{
c: Shape3,
value: { side: 0x42, colors: [1, 2], radius: 0x42 },
serialized: '0742000800000042000102',
hash_tree_root: '1093b0f1d88b1b2b458196fa860e0df7a7dc1837fe804b95d664279635cb302f',
},
{
c: Shape3,
value: { side: 0x42 },
serialized: '014200',
hash_tree_root: '28df3f1c3eebd92504401b155c5cfe2f01c0604889e46ed3d22a3091dde1371f',
},
{
c: Shape3,
value: { colors: [1, 2] },
serialized: '02040000000102',
hash_tree_root: '659638368467b2c052ca698fcb65902e9b42ce8e94e1f794dd5296ceac2dec3e',
},
{
c: Shape3,
value: { radius: 0x42 },
serialized: '044200',
hash_tree_root: 'd585dd0561c718bf4c29e4c1bd7d4efd4a5fe3c45942a7f778acb78fd0b2a4d2',
},
{
c: Shape3,
value: { colors: [1, 2], radius: 0x42 },
serialized: '060600000042000102',
hash_tree_root: '00fc0cecc200a415a07372d5d5b8bc7ce49f52504ed3da0336f80a26d811c7bf',
},
{
c: VarTestStruct,
value: { A: 11, B: { colors: [1, 2], radius: 0x42 }, C: 3 },
serialized: '0b000700000003060600000042000102',
hash_tree_root: 'c29e3166aa3fb90442673b56736eb7f4e6e060ed1f4088556e7be81cb1458380',
},
{
c: VarTestStruct2,
value: { A: 11, B: [{ colors: [1, 2], radius: 0x42 }], C: 3 },
serialized: '0b00070000000304000000060600000042000102',
hash_tree_root: 'd5197534723f8b2643d54adde5ef9c456a28e0df61c4568f92c7f00244af3b4f',
},
{
c: ShapePair3,
value: {
shape_1: { colors: [1, 2], radius: 0x42 },
shape_2: { side: 5, colors: [3, 4], radius: 0x23 },
},
serialized: '08000000110000000606000000420001020705000800000023000304',
hash_tree_root: 'c932d6052fb9643366c3271552ba5397791df399271edaa8e46e694d8fb22c57',
},
{
c: ShapePair3,
value: {
shape_1: { side: 5, colors: [3, 4], radius: 0x23 },
shape_2: { colors: [1, 2], radius: 0x42 },
},
serialized: '08000000130000000705000800000023000304060600000042000102',
hash_tree_root: 'b60d88a6e2c50b573ac61c069ea2c4cd01b345b33c1a1631ae18c27bf33e4cee',
},
{
c: ShapePair4,
value: {
shape_1: { colors: [1, 2], radius: 0x42 },
shape_2: { side: 5, colors: [3, 4], radius: 0x23 },
},
serialized: '080000001500000006000000000600000042000102070000000005000800000023000304',
hash_tree_root: 'e0694811df863204b7a4dbf0239dbe5a555ff451954142eb2af7bf9b4f6763bf',
},
{
c: ShapePair4,
value: {
shape_1: { side: 5, colors: [3, 4], radius: 0x23 },
shape_2: { colors: [1, 2], radius: 0x42 },
},
serialized: '080000001700000007000000000500080000002300030406000000000600000042000102',
hash_tree_root: 'b88771fd9e8f80f8621c63084cbf9c1b12301dcc117f6604ad992777eb7b1dd7',
},
];
for (const v of VECTORS) {
deepStrictEqual(v.c.decode(hexToBytes(v.serialized)), v.value, 'decode');
deepStrictEqual(bytesToHex(v.c.encode(v.value)), v.serialized, 'encode');
deepStrictEqual(bytesToHex(v.c.merkleRoot(v.value)), v.hash_tree_root);
}
});
should('profile', () => {
const Square = SSZ.profile(Shape1, [], ['side', 'color']);
const Circle = SSZ.profile(Shape1, [], ['color', 'radius']);
const SquareOpt = SSZ.profile(Shape1, ['color'], ['side']);
const CircleOpt = SSZ.profile(Shape1, ['radius'], ['color']);
const SquareOpt2 = SSZ.profile(Shape1, ['color', 'side']);
const CircleOpt2 = SSZ.profile(Shape1, ['radius', 'color']);
deepStrictEqual(Square.size, 3);
deepStrictEqual(Circle.size, 3);
deepStrictEqual(Shape1.size, undefined);
deepStrictEqual(SquareOpt.size, undefined);
deepStrictEqual(SquareOpt2.size, undefined);
deepStrictEqual(CircleOpt2.size, undefined);
const VECTORS = [
// Square
{
c: Shape1,
value: { side: 0x42, color: 1 },
serialized: '03420001',
hash_tree_root: 'bfdb6fda9d02805e640c0f5767b8d1bb9ff4211498a5e2d7c0f36e1b88ce57ff',
},
{
c: Square,
value: { side: 0x42, color: 1 },
serialized: '420001',
hash_tree_root: 'bfdb6fda9d02805e640c0f5767b8d1bb9ff4211498a5e2d7c0f36e1b88ce57ff',
},
{
c: SquareOpt,
value: { side: 0x42, color: 1 },
serialized: '01420001',
hash_tree_root: 'bfdb6fda9d02805e640c0f5767b8d1bb9ff4211498a5e2d7c0f36e1b88ce57ff',
},
{
c: SquareOpt2,
value: { side: 0x42, color: 1 },
serialized: '03420001', // Same as Shape1 (because no fields omitted before)
hash_tree_root: 'bfdb6fda9d02805e640c0f5767b8d1bb9ff4211498a5e2d7c0f36e1b88ce57ff',
},
// Circle
{
c: Shape1,
value: { color: 1, radius: 0x42 },
serialized: '06014200',
hash_tree_root: 'f66d2c38c8d2afbd409e86c529dff728e9a4208215ca20ee44e49c3d11e145d8',
},
{
c: Circle,
value: { color: 1, radius: 0x42 },
serialized: '014200',
hash_tree_root: 'f66d2c38c8d2afbd409e86c529dff728e9a4208215ca20ee44e49c3d11e145d8',
},
{
c: CircleOpt,
value: { color: 1, radius: 0x42 },
serialized: '01014200',
hash_tree_root: 'f66d2c38c8d2afbd409e86c529dff728e9a4208215ca20ee44e49c3d11e145d8',
},
{
c: CircleOpt2,
value: { color: 1, radius: 0x42 },
serialized: '03014200', // different from Shape!
hash_tree_root: 'f66d2c38c8d2afbd409e86c529dff728e9a4208215ca20ee44e49c3d11e145d8',
},
];
for (const v of VECTORS) {
deepStrictEqual(bytesToHex(v.c.encode(v.value)), v.serialized, 'encode');
deepStrictEqual(bytesToHex(v.c.merkleRoot(v.value)), v.hash_tree_root);
deepStrictEqual(v.c.decode(hexToBytes(v.serialized)), v.value, 'decode');
}
});
should('_isStableCompat', () => {
// Field types are compatible with themselves.
deepStrictEqual(SSZ.uint8._isStableCompat(SSZ.uint8), true);
deepStrictEqual(SSZ.uint16._isStableCompat(SSZ.uint16), true);
deepStrictEqual(SSZ.bitlist(5)._isStableCompat(SSZ.bitlist(5)), true);
deepStrictEqual(SSZ.bitvector(5)._isStableCompat(SSZ.bitvector(5)), true);
deepStrictEqual(SSZ.bitvector(5)._isStableCompat(SSZ.bitvector(6)), false);
// byte is compatible with uint8 and vice versa.
deepStrictEqual(SSZ.uint8._isStableCompat(SSZ.byte), true);
deepStrictEqual(SSZ.byte._isStableCompat(SSZ.uint8), true);
deepStrictEqual(SSZ.uint8._isStableCompat(SSZ.uint16), false);
// Bitlist[N] / Bitvector[N] field types are compatible if they share the same capacity N.
deepStrictEqual(SSZ.bitlist(5)._isStableCompat(SSZ.bitvector(5)), true);
deepStrictEqual(SSZ.bitlist(5)._isStableCompat(SSZ.bitvector(6)), false);
// List[T, N] / Vector[T, N] field types are compatible if T is compatible and if they also share the same capacity N.
deepStrictEqual(SSZ.list(5, SSZ.byte)._isStableCompat(SSZ.vector(5, SSZ.uint8)), true);
deepStrictEqual(SSZ.bytelist(5)._isStableCompat(SSZ.vector(5, SSZ.uint8)), true);
deepStrictEqual(SSZ.bytevector(5)._isStableCompat(SSZ.vector(5, SSZ.uint8)), true);
deepStrictEqual(SSZ.list(5, SSZ.byte)._isStableCompat(SSZ.vector(6, SSZ.uint8)), false);
deepStrictEqual(SSZ.bytelist(5)._isStableCompat(SSZ.vector(6, SSZ.uint8)), false);
deepStrictEqual(SSZ.bytevector(5)._isStableCompat(SSZ.vector(6, SSZ.uint8)), false);
// Container / StableContainer[N] field types are compatible if all inner field types are compatible, if they also share the same field names in the same order, and for StableContainer[N] if they also share the same capacity N.
const AF = { A: SSZ.uint8, B: SSZ.uint16, C: SSZ.uint32 };
const BF = { A: SSZ.uint32, B: SSZ.uint16, C: SSZ.uint8 };
const CF = { A: SSZ.uint32, B: SSZ.uint16 };
// container-container
deepStrictEqual(SSZ.container(AF)._isStableCompat(SSZ.container(AF)), true);
deepStrictEqual(SSZ.container(AF)._isStableCompat(SSZ.container(BF)), false);
deepStrictEqual(SSZ.container(AF)._isStableCompat(SSZ.container(CF)), false);
// container-stable container
deepStrictEqual(SSZ.container(AF)._isStableCompat(SSZ.stableContainer(5, AF)), true);
deepStrictEqual(SSZ.container(BF)._isStableCompat(SSZ.stableContainer(5, AF)), false);
// stable container-stable container
deepStrictEqual(
SSZ.stableContainer(5, AF)._isStableCompat(SSZ.stableContainer(5, AF)),
true
);
deepStrictEqual(
SSZ.stableContainer(6, AF)._isStableCompat(SSZ.stableContainer(5, AF)),
false
);
// Profile[X] field types are compatible with StableContainer types compatible with X, and are compatible with Profile[Y] where Y is compatible with X if also all inner field types are compatible. Differences solely in optionality do not affect merkleization compatibility.
const ASC = SSZ.stableContainer(5, AF);
const BSC = SSZ.stableContainer(5, BF);
// profile-stable container
deepStrictEqual(SSZ.profile(ASC, ['A', 'B', 'C'])._isStableCompat(ASC), true);
deepStrictEqual(SSZ.profile(ASC, ['A', 'B', 'C'])._isStableCompat(BSC), false);
// profile -container
deepStrictEqual(
SSZ.profile(ASC, ['A', 'B', 'C'])._isStableCompat(SSZ.container(AF)),
false
);
deepStrictEqual(
SSZ.profile(ASC, ['A', 'B', 'C'])._isStableCompat(SSZ.container(BF)),
false
);
// profile-profile
deepStrictEqual(
SSZ.profile(ASC, ['A', 'B', 'C'])._isStableCompat(SSZ.profile(ASC, ['A'])),
true
);
deepStrictEqual(
SSZ.profile(ASC, ['A', 'B', 'C'])._isStableCompat(SSZ.profile(BSC, ['A'])),
false
);
});
});
describe('consensus-specs', () => {
const SingleFieldTestStableStruct = SSZ.stableContainer(4, { A: SSZ.byte });
const SmallTestStableStruct = SSZ.stableContainer(4, {
A: SSZ.uint16,
B: SSZ.uint16,
});
const FixedTestStableStruct = SSZ.stableContainer(4, {
A: SSZ.uint8,
B: SSZ.uint64,
C: SSZ.uint32,
});
const VarTestStableStruct = SSZ.stableContainer(4, {
A: SSZ.uint16,
B: SSZ.list(1024, SSZ.uint16),
C: SSZ.uint8,
});
const ComplexTestStableStruct = SSZ.stableContainer(8, {
A: SSZ.uint16,
B: SSZ.list(128, SSZ.uint16),
C: SSZ.uint8,
D: SSZ.bytelist(256),
E: VarTestStableStruct,
F: SSZ.vector(4, FixedTestStableStruct),
G: SSZ.vector(2, VarTestStableStruct),
});
const BitsStableStruct = SSZ.stableContainer(8, {
A: SSZ.bitlist(5),
B: SSZ.bitvector(2),
C: SSZ.bitvector(1),
D: SSZ.bitlist(6),
E: SSZ.bitvector(8),
});
should('stableContainer', () => {
// https://github.com/ethereum/consensus-specs/files/15417175/ssz_generic_7495.tar.gz
const VECTORS = parseVectors(SSZ_STABLE_PATH + 'stablecontainers/valid');
const coders = {
SingleFieldTestStableStruct,
SmallTestStableStruct,
FixedTestStableStruct,
VarTestStableStruct,
ComplexTestStableStruct,
BitsStableStruct,
};
const nonNull = (x, r) => (x == null ? undefined : r(x));
const cleanEmpty = (x) => {
for (const k in x) if (x[k] === null || x[k] === undefined) delete x[k];
return x;
};
for (const [k, v] of Object.entries(VECTORS)) {
const sName = k.split('_')[0];
//console.log('K', k, v);
const c = coders[sName];
let val = v.value;
cleanEmpty(val);
if (sName === 'BitsStableStruct') {
val = {
A: nonNull(v.value.A, (r) => SSZ.bitlist(5).decode(hexToBytes(r.slice(2)))),
B: nonNull(v.value.B, (r) => SSZ.bitvector(2).decode(hexToBytes(r.slice(2)))),
C: nonNull(v.value.C, (r) => SSZ.bitvector(1).decode(hexToBytes(r.slice(2)))),
D: nonNull(v.value.D, (r) => SSZ.bitlist(6).decode(hexToBytes(r.slice(2)))),
E: nonNull(v.value.E, (r) => SSZ.bitvector(8).decode(hexToBytes(r.slice(2)))),
};
cleanEmpty(val);
} else if (sName === 'ComplexTestStableStruct') {
if (val.A !== undefined) val.A = Number(val.A);
if (val.B) val.B = val.B.map(Number);
if (val.C !== undefined) val.C = Number(val.C);
if (val.D !== undefined) val.D = hexToBytes(val.D.slice(2));
if (val.E) {
cleanEmpty(val.E);
if (val.E.A !== undefined) val.E.A = Number(val.E.A);
if (val.E.B !== undefined) val.E.B = val.E.B.map(Number);
if (val.E.C !== undefined) val.E.C = Number(val.E.C);
}
if (val.F) {
val.F = val.F.map(cleanEmpty);
for (const i of val.F) {
if (i.A !== undefined) i.A = Number(i.A);
if (i.C !== undefined) i.C = Number(i.C);
}
}
if (val.G) {
val.G = val.G.map(cleanEmpty);
for (const i of val.G) {
if (i.A !== undefined) i.A = Number(i.A);
if (i.B !== undefined) i.B = i.B.map(Number);
if (i.C !== undefined) i.C = Number(i.C);
}
}
} else if (sName === 'FixedTestStableStruct') {
if (val.A !== undefined) val.A = Number(val.A);
if (val.C !== undefined) val.C = Number(val.C);
} else if (sName === 'SingleFieldTestStableStruct') {
if (val.A !== undefined) val.A = Number(val.A);
} else if (sName === 'SmallTestStableStruct') {
if (val.A !== undefined) val.A = Number(val.A);
if (val.B !== undefined) val.B = Number(val.B);
} else if (sName === 'VarTestStableStruct') {
if (val.A !== undefined) val.A = Number(val.A);
if (val.B !== undefined) val.B = val.B.map(Number);
if (val.C !== undefined) val.C = Number(val.C);
}
deepStrictEqual(c.decode(hexToBytes(v.hex)), val, 'decode');
deepStrictEqual(bytesToHex(c.encode(val)), v.hex, 'encode');
deepStrictEqual(`0x${bytesToHex(c.merkleRoot(val))}`, v.meta.root, 'hash');
}
});
should('profile', () => {
const SingleFieldTestProfile = SSZ.profile(SingleFieldTestStableStruct, [], ['A']);
const SmallTestProfile1 = SSZ.profile(SmallTestStableStruct, [], ['A', 'B']);
const SmallTestProfile2 = SSZ.profile(SmallTestStableStruct, [], ['A']);
const SmallTestProfile3 = SSZ.profile(SmallTestStableStruct, [], ['B']);
const FixedTestProfile1 = SSZ.profile(FixedTestStableStruct, [], ['A', 'B', 'C']);
const FixedTestProfile2 = SSZ.profile(FixedTestStableStruct, [], ['A', 'B']);
const FixedTestProfile3 = SSZ.profile(FixedTestStableStruct, [], ['A', 'C']);
const FixedTestProfile4 = SSZ.profile(FixedTestStableStruct, [], ['C']);
const VarTestProfile1 = SSZ.profile(VarTestStableStruct, [], ['A', 'B', 'C']);
const VarTestProfile2 = SSZ.profile(VarTestStableStruct, [], ['B', 'C']);
const VarTestProfile3 = SSZ.profile(VarTestStableStruct, [], ['B']);
const ComplexTestProfile1 = SSZ.profile(
ComplexTestStableStruct,
[],
['A', 'B', 'C', 'D', 'E', 'F', 'G']
);
const ComplexTestProfile2 = SSZ.profile(
ComplexTestStableStruct,
[],
['A', 'B', 'C', 'D', 'E']
);
const ComplexTestProfile3 = SSZ.profile(ComplexTestStableStruct, [], ['A', 'C', 'E', 'G']);
const ComplexTestProfile4 = SSZ.profile(ComplexTestStableStruct, [], ['B', 'D', 'F']);
const ComplexTestProfile5 = SSZ.profile(ComplexTestStableStruct, [], ['E', 'F', 'G']);
const BitsProfile1 = SSZ.profile(BitsStableStruct, [], ['A', 'B', 'C', 'D', 'E']);
const BitsProfile2 = SSZ.profile(BitsStableStruct, [], ['A', 'B', 'C', 'D']);
const BitsProfile3 = SSZ.profile(BitsStableStruct, [], ['A', 'D', 'E']);
const coders = {
SingleFieldTestProfile,
SmallTestProfile1,
SmallTestProfile2,
SmallTestProfile3,
FixedTestProfile1,
FixedTestProfile2,
FixedTestProfile3,
FixedTestProfile4,
VarTestProfile1,
VarTestProfile2,
VarTestProfile3,
ComplexTestProfile1,
ComplexTestProfile2,
ComplexTestProfile3,
ComplexTestProfile4,
ComplexTestProfile5,
BitsProfile1,
BitsProfile2,
BitsProfile3,
};
const VECTORS = parseVectors(SSZ_STABLE_PATH + 'profiles/valid');
const nonNull = (x, r) => (x == null ? undefined : r(x));
const cleanEmpty = (x) => {
for (const k in x) if (x[k] === null || x[k] === undefined) delete x[k];
return x;
};
for (const [k, v] of Object.entries(VECTORS)) {
const sName = k.split('_')[0];
//console.log('K', k, v);
const c = coders[sName];
let val = v.value;
cleanEmpty(val);
if (sName.startsWith('BitsProfile')) {
val = {
A: nonNull(v.value.A, (r) => SSZ.bitlist(5).decode(hexToBytes(r.slice(2)))),
B: nonNull(v.value.B, (r) => SSZ.bitvector(2).decode(hexToBytes(r.slice(2)))),
C: nonNull(v.value.C, (r) => SSZ.bitvector(1).decode(hexToBytes(r.slice(2)))),
D: nonNull(v.value.D, (r) => SSZ.bitlist(6).decode(hexToBytes(r.slice(2)))),
E: nonNull(v.value.E, (r) => SSZ.bitvector(8).decode(hexToBytes(r.slice(2)))),
};
cleanEmpty(val);
} else if (sName.startsWith('ComplexTestProfile')) {
if (val.A !== undefined) val.A = Number(val.A);
if (val.B) val.B = val.B.map(Number);
if (val.C !== undefined) val.C = Number(val.C);
if (val.D !== undefined) val.D = hexToBytes(val.D.slice(2));
if (val.E) {
cleanEmpty(val.E);
if (val.E.A !== undefined) val.E.A = Number(val.E.A);
if (val.E.B !== undefined) val.E.B = val.E.B.map(Number);
if (val.E.C !== undefined) val.E.C = Number(val.E.C);
}
if (val.F) {
val.F = val.F.map(cleanEmpty);
for (const i of val.F) {
if (i.A !== undefined) i.A = Number(i.A);
if (i.C !== undefined) i.C = Number(i.C);
}
}
if (val.G) {
val.G = val.G.map(cleanEmpty);
for (const i of val.G) {
if (i.A !== undefined) i.A = Number(i.A);
if (i.B !== undefined) i.B = i.B.map(Number);
if (i.C !== undefined) i.C = Number(i.C);
}
}
} else if (sName.startsWith('FixedTestProfile')) {
if (val.A !== undefined) val.A = Number(val.A);
if (val.C !== undefined) val.C = Number(val.C);
} else if (sName.startsWith('SingleFieldTestProfile')) {
if (val.A !== undefined) val.A = Number(val.A);
} else if (sName.startsWith('SmallTestProfile')) {
if (val.A !== undefined) val.A = Number(val.A);
if (val.B !== undefined) val.B = Number(val.B);
} else if (sName.startsWith('VarTestProfile')) {
if (val.A !== undefined) val.A = Number(val.A);
if (val.B !== undefined) val.B = val.B.map(Number);
if (val.C !== undefined) val.C = Number(val.C);
}
deepStrictEqual(c.decode(hexToBytes(v.hex)), val, 'decode');
deepStrictEqual(bytesToHex(c.encode(val)), v.hex, 'encode');
deepStrictEqual(`0x${bytesToHex(c.merkleRoot(val))}`, v.meta.root, 'hash');
}
});
describe('electra', () => {
const VECTORS = readStructVectors(`${SSZ_STABLE_PATH_2}/electra`);
const TYPES = {
...SSZ.ETH2_TYPES,
...SSZ.ETH2_CONSENSUS,
...SSZ.ETH2_PROFILES.electra,
//BeaconBlockBody: undefined,
};
for (const t of VECTORS) {
should(`${t.type}/${t.name}`, () => {
const { hex, meta, value, type } = t;
const c = TYPES[type];
if (!c) return;
const val = mapTypes(type, true, value);
deepStrictEqual(c.decode(c.encode(val)), val);
deepStrictEqual(bytesToHex(c.encode(val)), hex);
deepStrictEqual(c.decode(hexToBytes(hex)), val);
deepStrictEqual(`0x${bytesToHex(c.merkleRoot(val))}`, meta.root);
});
}
});
});
});
const SingleFieldTestStruct = SSZ.container({
A: SSZ.byte,
});
const SmallTestStruct = SSZ.container({
A: SSZ.uint16,
B: SSZ.uint16,
});
const FixedTestStruct = SSZ.container({
A: SSZ.uint8,
B: SSZ.uint64,
C: SSZ.uint32,
});
const VarTestStruct = SSZ.container({
A: SSZ.uint16,
B: SSZ.list(1024, SSZ.uint16),
C: SSZ.uint8,
});
const ComplexTestStruct = SSZ.container({
A: SSZ.uint16,
B: SSZ.list(128, SSZ.uint16),
C: SSZ.uint8,
D: SSZ.bytelist(256),
E: VarTestStruct,
F: SSZ.vector(4, FixedTestStruct),
G: SSZ.vector(2, VarTestStruct),
});
const BitsStruct = SSZ.container({
A: SSZ.bitlist(5),
B: SSZ.bitvector(2),
C: SSZ.bitvector(1),
D: SSZ.bitlist(6),
E: SSZ.bitvector(8),
});
const structs = {
SingleFieldTestStruct,
SmallTestStruct,
FixedTestStruct,
VarTestStruct,
ComplexTestStruct,
BitsStruct,
};
should('basic', () => {
const isSmall = (type) => ['uint8', 'uint16', 'uint32'].includes(type);
for (const t in VALID) {
const { meta, value, hex } = VALID[t];
if (t.startsWith('uints/')) {
let size = /^uints\/uint_(\d+)_/.exec(t)[1];
const coder = {
8: SSZ.uint8,
16: SSZ.uint16,
32: SSZ.uint32,
64: SSZ.uint64,
128: SSZ.uint128,
256: SSZ.uint256,
}[size];
let val = value;
if (typeof val === 'string') val = BigInt(value);
if (size < 64) val = Number(val);
deepStrictEqual(bytesToHex(coder.encode(val)), hex);
deepStrictEqual(coder.decode(hexToBytes(hex)), val);
deepStrictEqual(`0x${bytesToHex(coder.merkleRoot(val))}`, meta.root);
} else if (t.startsWith('boolean/')) {
const coder = SSZ.boolean;
deepStrictEqual(bytesToHex(coder.encode(value)), hex);
deepStrictEqual(coder.decode(hexToBytes(hex)), value);
deepStrictEqual(`0x${bytesToHex(coder.merkleRoot(value))}`, meta.root);
} else if (t.startsWith('basic_vector/')) {
const m = /^basic_vector\/vec_(\w+)_(\d+)/.exec(t);
const type = m[1];
const size = +m[2];
const coder = SSZ.vector(size, SSZ[type]);
let val = value.map((i) => (typeof i === 'string' ? BigInt(i) : i));
if (isSmall(type)) val = val.map((i) => Number(i));
deepStrictEqual(bytesToHex(coder.encode(val)), hex);
deepStrictEqual(coder.decode(hexToBytes(hex)), val);
deepStrictEqual(`0x${bytesToHex(coder.merkleRoot(val))}`, meta.root);
} else if (t.startsWith('bitvector/bitvec')) {
let val = value;
const size = +/^bitvector\/bitvec_(\d+)/.exec(t)[1];
const coder = SSZ.bitvector(size);
val = coder.decode(hexToBytes(val.slice(2)));
deepStrictEqual(bytesToHex(coder.encode(val)), hex);
deepStrictEqual(coder.decode(hexToBytes(hex)), val);
deepStrictEqual(`0x${bytesToHex(coder.merkleRoot(val))}`, meta.root);
} else if (t.startsWith('bitlist/bitlist')) {
let val = value;
const size = +/^bitlist\/bitlist_(\d+)/.exec(t)[1];
const coder = SSZ.bitlist(size);
val = coder.decode(hexToBytes(val.slice(2)));
deepStrictEqual(bytesToHex(coder.encode(val)), hex);
deepStrictEqual(coder.decode(hexToBytes(hex)), val);
deepStrictEqual(`0x${bytesToHex(coder.merkleRoot(val))}`, meta.root);
} else if (t.startsWith('containers/')) {
const name = /^containers\/([^_]+)_/.exec(t)[1];
const coder = structs[name];
let val = value;
if (name === 'BitsStruct') {
val = {
A: SSZ.bitlist(5).decode(hexToBytes(value.A.slice(2))),
B: SSZ.bitvector(2).decode(hexToBytes(value.B.slice(2))),
C: SSZ.bitvector(1).decode(hexToBytes(value.C.slice(2))),
D: SSZ.bitlist(6).decode(hexToBytes(value.D.slice(2))),
E: SSZ.bitvector(8).decode(hexToBytes(value.E.slice(2))),
};
} else if (name === 'ComplexTestStruct') {
val = { ...val, D: hexToBytes(value.D.slice(2)) };
}
// small numbers
if (name === 'SingleFieldTestStruct') val.A = Number(val.A);
if (name === 'SmallTestStruct') {
val.A = Number(val.A);
val.B = Number(val.B);
}
if (name === 'FixedTestStruct') {
val.A = Number(val.A);
val.C = Number(val.C);
}
if (name === 'VarTestStruct') {
val.A = Number(val.A);
val.B = val.B.map(Number);
val.C = Number(val.C);
}
if (name === 'ComplexTestStruct') {
val.A = Number(val.A);
val.B = val.B.map(Number);
val.C = Number(val.C);
val.E.A = Number(val.E.A);
val.E.B = val.E.B.map(Number);
val.E.C = Number(val.E.C);
for (const i of val.F) {
i.A = Number(i.A);
i.C = Number(i.C);
}
for (const i of val.G) {
i.A = Number(i.A);
i.B = i.B.map(Number);
i.C = Number(i.C);
}
}
deepStrictEqual(bytesToHex(coder.encode(val)), hex);
deepStrictEqual(coder.decode(hexToBytes(hex)), val);
deepStrictEqual(`0x${bytesToHex(coder.merkleRoot(val))}`, meta.root);
} else throw new Error('missing test');
}
for (const t in INVALID) {
const hex = INVALID[t];
if (t.startsWith('uints/')) {
let size = /^uints\/uint_(\d+)_/.exec(t)[1];
const coder = {
8: SSZ.uint8,
16: SSZ.uint16,
32: SSZ.uint32,
64: SSZ.uint64,
128: SSZ.uint128,
256: SSZ.uint256,
}[size];
throws(() => coder.decode(hexToBytes(hex)));
} else if (t.startsWith('boolean/')) {
throws(() => SSZ.boolean.decode(hexToBytes(hex)));
} else if (t.startsWith('basic_vector/')) {
const m = /^basic_vector\/vec_(\w+)_(\d+)/.exec(t);
const type = m[1];
const size = +m[2];
throws(() => SSZ.vector(size, SSZ[type]).decode(hexToBytes(hex)));
} else if (t.startsWith('bitvector/bitvec')) {
const size = +/^bitvector\/bitvec_(\d+)/.exec(t)[1];
throws(() => SSZ.bitvector(size).decode(hexToBytes(hex)), `${t}`);
} else if (t.startsWith('bitlist/')) {
const m = /^bitlist\/bitlist_(\d+)/.exec(t);
const size = m ? +m[1] : 1;
throws(() => SSZ.bitlist(size).decode(hexToBytes(hex)));
} else if (t.startsWith('containers/')) {
const name = /^containers\/([^_]+)_/.exec(t)[1];
const coder = structs[name];
throws(() => coder.decode(hexToBytes(hex)));
} else throw new Error('missing test');
}
});
should('Bitvector', () => {
const coder4 = SSZ.bitvector(4);
deepStrictEqual(coder4.decode(new Uint8Array([12])), [false, false, true, true]);
deepStrictEqual(coder4.encode([false, false, true, true]), new Uint8Array([12]));
const coder12 = SSZ.bitvector(12);
deepStrictEqual(coder12.decode(new Uint8Array([24, 1])), [
false,
false,
false,
true,
true,
false,
false,
false,
true,
false,
false,
false,
]);
const coder16 = SSZ.bitvector(16);
const v16 = [
[[true].concat(new Array(15).fill(false)), new Uint8Array([0x01, 0x00])],
[[false, true].concat(new Array(14).fill(false)), new Uint8Array([0x02, 0x00])],
[new Array(15).fill(false).concat([true]), new Uint8Array([0x00, 0x80])],
[new Array(16).fill(true), new Uint8Array([0xff, 0xff])],
];
for (const [value, res] of v16) {
deepStrictEqual(coder16.encode(value), res, 'enc');
deepStrictEqual(coder16.decode(res), value, 'dec');
}
});
should('Bitlist', () => {
const bl256 = SSZ.bitlist(256);
// encode
deepStrictEqual(bl256.encode([]), new Uint8Array([1]));
deepStrictEqual(bl256.encode([false, true]), new Uint8Array([6]));
deepStrictEqual(
bl256.encode([false, false, false, true, true, false, false, false]),
new Uint8Array([24, 1])
);
// decode
deepStrictEqual(bl256.decode(new Uint8Array([1])), []);
deepStrictEqual(bl256.decode(new Uint8Array([24, 1])), [
false,
false,
false,
true,
true,
false,
false,
false,
]);
deepStrictEqual(bl256.decode(new Uint8Array([24, 2])), [
false,
false,
false,
true,
true,
false,
false,
false,
false,
]);
deepStrictEqual(bl256.decode(new Uint8Array([24, 3])), [
false,
false,
false,
true,