circomlib/test/aliascheckbabyjub.js

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2019-11-23 22:19:47 +03:00
const chai = require("chai");
const path = require("path");
const snarkjs = require("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 r = bigInt("2736030358979909402780800718157159386076813972158567259200215660948447373041");
describe("Aliascheck test", () => {
let circuit;
before( async() => {
const cirDef = await compiler(path.join(__dirname, "circuits", "aliascheckbabyjub_test.circom"));
circuit = new snarkjs.Circuit(cirDef);
console.log("NConstrains: " + circuit.nConstraints);
});
it("Satisfy the aliastest 0", async () => {
const inp = getBits(bigInt.zero, 251);
circuit.calculateWitness({in: inp});
});
it("Satisfy the aliastest 3", async () => {
const inp = getBits(bigInt(3), 251);
circuit.calculateWitness({in: inp});
});
it("Satisfy the aliastest r-1", async () => {
const inp = getBits(r.sub(bigInt.one), 251);
circuit.calculateWitness({in: inp});
});
it("Nhot not satisfy an input of r", async () => {
const inp = getBits(r, 251);
try {
circuit.calculateWitness({in: inp});
assert(false);
} catch(err) {
assert(err.message.indexOf("Constraint doesn't match") >= 0);
assert(err.message.indexOf("1 != 0") >= 0);
}
});
it("Nhot not satisfy all ones", async () => {
const inp = getBits(bigInt(1).shl(251).sub(bigInt(1)), 251);
try {
circuit.calculateWitness({in: inp});
assert(false);
} catch(err) {
assert(err.message.indexOf("Constraint doesn't match") >= 0);
assert(err.message.indexOf("1 != 0") >= 0);
}
});
});