1const chai = require("chai");
 2const path = require("path");
 3var blake2b = require("blake2b");
 4const bigInt = require("big-integer");
 5const tester = require("circom").tester;
 6
 7const poseidon = require("../src/poseidon.js");
 8
 9const assert = chai.assert;
10
11describe("Blake2b version test", function() {
12    it("Should give the expected output for blake2b version", async () => {
13        var output = new Uint8Array(32);
14        var input = Buffer.from("poseidon_constants");
15        const h = blake2b(output.length).update(input).digest("hex");
16        assert.equal("e57ba154fb2c47811dc1a2369b27e25a44915b4e4ece4eb8ec74850cb78e01b1", h);
17    });
18});
19
20describe("Poseidon Circuit test", function () {
21    let circuit;
22
23    this.timeout(100000);
24
25    before( async () => {
26        circuit = await tester(path.join(__dirname, "circuits", "poseidon_test.circom"));
27
28    });
29
30    it("Should check constrain of hash([1, 2])", async () => {
31        const w = await circuit.calculateWitness({inputs: [1, 2]});
32
33        const hash = poseidon.createHash(6, 8, 57);
34
35        const res2 = hash([1,2]);
36        assert.equal("12242166908188651009877250812424843524687801523336557272219921456462821518061", res2.toString());
37
38        await circuit.assertOut(w, {out : res2});
39
40        await circuit.checkConstraints(w);
41    });
42
43    it("Should check constrain of hash([3, 4])", async () => {
44        const w = await circuit.calculateWitness({inputs: [3, 4]});
45
46        const hash = poseidon.createHash(6, 8, 57);
47
48        const res2 = hash([3, 4]);
49        assert.equal("17185195740979599334254027721507328033796809509313949281114643312710535000993", res2.toString());
50
51        await circuit.assertOut(w, {out : res2});
52
53        await circuit.checkConstraints(w);
54    });
55});