circomlib/test/aliascheck.js

75 lines
2.1 KiB
JavaScript

const chai = require("chai");
const path = require("path");
const snarkjs = require("@tornado/snarkjs");
const compiler = require("circom");
const assert = chai.assert;
const bigInt = snarkjs.bigInt;
function print(circuit, w, s) {
console.log(s + ": " + w[circuit.getSignalIdx(s)]);
}
function getBits(v, n) {
const res = [];
for (let i = 0; i < n; i++) {
if (v.shr(i).isOdd()) {
res.push(bigInt.one);
} else {
res.push(bigInt.zero);
}
}
return res;
}
const q = bigInt("21888242871839275222246405745257275088548364400416034343698204186575808495617");
describe("Aliascheck test", () => {
let circuit;
before(async () => {
const cirDef = await compiler(path.join(__dirname, "circuits", "aliascheck_test.circom"));
circuit = new snarkjs.Circuit(cirDef);
console.log("NConstrains: " + circuit.nConstraints);
});
it("Satisfy the aliastest 0", async () => {
const inp = getBits(bigInt.zero, 254);
circuit.calculateWitness({ in: inp });
});
it("Satisfy the aliastest 3", async () => {
const inp = getBits(bigInt(3), 254);
circuit.calculateWitness({ in: inp });
});
it("Satisfy the aliastest q-1", async () => {
const inp = getBits(q.sub(bigInt.one), 254);
circuit.calculateWitness({ in: inp });
});
it("Nhot not satisfy an input of q", async () => {
const inp = getBits(q, 254);
try {
circuit.calculateWitness({ in: inp });
assert(false);
} catch (err) {
assert(/Constraint\sdoesn't\smatch(.*)1\s!=\s0/.test(err.message));
assert(err.message.indexOf("1 != 0") >= 0);
}
});
it("Nhot not satisfy all ones", async () => {
const inp = getBits(bigInt(1).shl(254).sub(bigInt(1)), 254);
try {
circuit.calculateWitness({ in: inp });
assert(false);
} catch (err) {
assert(/Constraint\sdoesn't\smatch(.*)1\s!=\s0/.test(err.message));
assert(err.message.indexOf("1 != 0") >= 0);
}
});
});